Chapter 9 - Harry Potter and the Knight of Hidden Truths Chapter Nine: What the Roots Remember

The rain had softened by the time Matthew and his friends left the library, though the clouds over Hogwarts remained low enough to catch against the tallest towers.

They crossed the entrance hall beneath an archway darkened by centuries of smoke and passed through the great oak doors into air that smelled of wet stone, cold grass, and distant woodsmoke. Water ran down the broad front steps in silver threads. Beyond them, the grounds sloped toward the lake and the greenhouses, whose long glass roofs shone beneath the grey afternoon like rows of lanterns filled with green light.

Matthew adjusted the strap of his satchel before beginning the descent. The Transfiguration books he had borrowed pulled against his left shoulder, while the high collar of his ward-cloth rested lightly around the web-like scar crossing his right cheek. The conversation with Professor McGonagall had left him more tired than the practical lesson. He could still hear her voice warning that justice required exactness and that certainty must not be allowed to transfigure evidence into whatever shape anger found easiest to use.

It was a useful warning.

He disliked how useful it was.

Aidan Rookwood came down the steps beside him, carefully avoiding the stream of rainwater running through the centre of each worn stone slab. He carried his Herbology book beneath one arm and his dragon-hide gloves stuffed through his belt because, according to him, placing them inside his satchel would make them inaccessible during an unexpected plant emergency.

Elara Vance had pointed out that most unexpected plant emergencies were unlikely to occur while they were carrying their schoolbags between lessons.

Aidan had replied that this only proved the plants would choose a better time.

Katie Bell walked on Matthew's other side, keeping one hand on the railing as the wind pushed against her robes. She had tied her hair away from her face, though several loose strands had already escaped and clung damply to her forehead. Elara followed half a step behind them, her gloves properly folded inside the front pocket of her bag and her textbook wrapped in waxed cloth to protect it from the rain.

Julian Quill had separated from them at the library. Ravenclaw had Arithmancy orientation rather than Herbology that afternoon, though Professor Flitwick had apparently described the session as an introduction to numerical magical relationships rather than a true class.

Julian had left looking delighted.

Aidan had called that unnatural.

As the four Gryffindors reached the lower path, Katie looked toward Matthew. Concern remained in her expression from the threat in the Great Hall, but she had not asked the same broad question repeatedly or watched him as though he might break because someone had spoken cruelly.

Instead, she nodded toward the Herbology book under his arm.

"Do you think Dittany might help your scars?"

Matthew looked at the greenhouses ahead. "I do not know."

"You said the book called it restorative."

"It did. Restorative does not necessarily mean cleansing."

Katie pushed a wet strand of hair behind one ear. "What is the difference?"

"A restorative may help the body repair itself. A cleanser would need to remove the dark residue first, or at least weaken it enough that repairing the tissue did not close around it."

Aidan looked down at Matthew's right hand. The glove concealed most of the branching scars, but several pale lines remained visible above the cuff.

"So something can make you feel better without making you better."

"Yes."

"That seems unfair."

"It is also common," Elara said quietly. "Muggle pain medicines can stop something hurting without fixing the injury."

Matthew glanced back toward her.

Elara lifted one shoulder. "My mother keeps ordinary medical books. She says pain and damage are related, but they are not the same measurement."

"That is useful," Matthew said.

Elara's mouth moved into a brief smile. "I thought you would think so."

They continued along the path.

The greenhouses grew larger as they approached. Their glass walls were divided by iron frames painted dark green, though rust had begun appearing around several hinges. Warm condensation covered the inside of Greenhouse One, turning the plants beyond it into blurred shapes. The newer greenhouses stood in neat rows, but several older structures had been built at different angles and connected through narrow passages, giving the entire Herbology compound the appearance of a living thing that had continued growing wherever space allowed.

Between the path and Greenhouse One stood several outdoor cultivation beds protected by low glass covers. At first glance, the plants beneath them looked ordinary enough that Matthew might have expected to find them in Vivian's garden or a Muggle greenhouse.

Then he looked more carefully.

A row of lavender grew nearest the path. Its stems were the familiar grey-green of ordinary lavender, but the flower heads were silver rather than purple, and a faint mist clung around them despite the breeze. Whenever a raindrop struck one of the buds, the mist brightened and released a soft, calming fragrance that eased the tightness in Matthew's shoulders before he consciously recognised it.

Beside the lavender stood rosemary bushes, their narrow leaves dark green on top and blue-white beneath. The branches leaned subtly toward anyone who spoke near them, as though the plants were listening. One sprig turned toward Aidan when he asked whether it would taste good on potatoes.

Farther along the bed grew peppermint with pale blue veins. Tiny crystals of frost formed along the edges of its leaves even though the surrounding earth remained warm and wet. Cold vapour rose when the wind disturbed it.

The next section held aloe plants with thick, translucent leaves. Instead of the ordinary green Vivian kept near her kitchen window, these leaves carried bands of amber and rose-gold within the gel. The colours moved toward the side nearest Matthew as he passed, following the curse heat beneath his scars.

At the end of the row stood several plants that looked like Venus flytraps until one of them opened a mouth wide enough to reveal three concentric rows of soft purple teeth.

It snapped at a drifting magical spark from somewhere inside the greenhouse.

The spark vanished between its leaves.

The plant shivered with satisfaction.

Aidan stopped.

"That one is definitely deciding whether to eat people."

Katie leaned closer without crossing the brass safety line. "It ate a spell."

"It ate a spark," Elara corrected.

"The spark was magical."

"That does not make it a complete spell."

Matthew crouched beside the line, studying the fine veins that ran from the plant's open trap into the soil. Each vein pulsed once after the magical spark disappeared.

"It digested part of the magic."

Professor Sprout's voice came from behind them.

"Only the simplest residue, Mr Knight. Do not assume its appetite exceeds its understanding."

The students turned.

Professor Pomona Sprout approached along the path carrying a shallow wooden tray under one arm. Soil darkened the knees and elbows of her patched robes. Her broad hat kept most of the rain from her face, though several damp curls had escaped around her ears. She looked less like a professor crossing between lessons than a gardener who had temporarily agreed to explain herself to children.

Her gaze moved across the group, pausing briefly on the plant whose trap remained half open.

"That is a Sparkcatcher Flytrap," she explained. "A magical cousin of the Muggle Venus flytrap. It feeds upon insects, small garden pests, and weak magical discharge. Its digestive fluid appears in several cleansing washes used for minor hex residue."

Matthew looked at the purple interior of the trap. "Could it draw curse residue from living tissue?"

Professor Sprout stopped beside him.

The question did not surprise her as much as the timing seemed to.

"In theory, its fluid can break down simple external enchantments," she said. "On living tissue, the same fluid may also break down protective magic, skin, and anything else it finds easier to digest than the curse."

Aidan withdrew his hand from the edge of the brass line.

He had not yet crossed it.

That was probably fortunate.

Sprout gestured toward the plants nearest the path.

"You have noticed the medicinal border."

"They resemble Muggle plants," Katie said.

"They are related to Muggle plants," Sprout corrected. "Some are magical cultivars of the same species. Some are close cousins. Others began as ordinary varieties grown for so many generations in magic-rich soil that their descendants developed stable magical properties."

She pointed first to the silver-flowered lavender.

"Moon-Lavender. The Muggle variety is already used for fragrance, sleep, and calming preparations. Moon-Lavender absorbs excess ambient agitation and releases it gradually through scent and mist. Properly prepared, it appears in sleeping draughts, burn salves, and potions intended to ease magical shock."

"Would it stop nightmares?" Katie asked.

"It may help someone sleep," Sprout replied. "It cannot decide what the sleeping mind remembers. Too much may suppress dreams without resolving whatever created them."

Matthew thought of his prophetic visions.

"So it could hide useful information."

"It could also give an exhausted person enough rest to survive the next day. A plant does not become good or bad because one effect has more than one consequence."

She moved to the rosemary. One branch turned toward her voice.

"Recall Rosemary. Ordinary rosemary has long associations with memory. The magical cultivar can help stabilise attention after confusion, mild concussion, or poorly cast distraction charms. Its oil preserves a potion's intended sequence when used in very small quantities."

Matthew's attention sharpened.

"Could it restore a memory removed by a Memory Charm?"

Professor Sprout looked at him directly.

"No."

The answer contained no comforting delay.

"A mild infusion may help a person organise memories they still possess," she continued. "It cannot recreate what a powerful spell severed, altered, or concealed. At most, it may make the edges of an absence easier to recognise."

"That could still be useful for Vivian."

"It might," Sprout said. "It might also make the absence more painful without recovering anything. Memory treatment should never begin from the assumption that remembering at any cost is automatically healing."

Matthew stored that beside McGonagall's warning about transfiguring a scar into healthy-looking skin.

Sprout moved to the blue-veined peppermint.

"Frostmint. Its cooling property is useful in fever draughts, inflammation treatments, and preparations meant to draw excess heat from magical channels. It must be measured carefully. Numbness can conceal deterioration."

Aidan leaned over the brass line and breathed near one leaf.

The Frostmint exhaled a cold cloud into his face.

His eyebrows turned white with ice.

Katie laughed.

Aidan wiped at them. "That was unnecessarily aggressive."

Professor Sprout's mouth twitched. "It responded to warm breath."

"It responded with judgement."

"That may be the company you keep."

Elara looked toward Matthew.

He ignored her smile.

The amber aloe came next.

"Ember Aloe," Sprout said. "Despite the name, it draws heat rather than creating it. The gel is used upon magical burns, overworked wand hands, and injuries carrying excess spell heat. It glows more brightly near active inflammation."

The colour inside the nearest leaf had gathered entirely on the side facing Matthew.

Sprout noticed.

So did the others.

Matthew resisted the instinct to hide his right arm behind his body.

"Would it react that strongly to old damage?" Elara asked.

"Not usually."

Professor Sprout stepped nearer the plant but did not reach toward Matthew.

"The curse pathways remain active enough to produce heat."

Matthew looked at the moving amber inside the leaf. "Could the gel cool them?"

"It may cool the living tissue around them. It would not identify what should remain and what should be removed."

"Support, not cleansing."

"Precisely."

Finally, Sprout indicated the Sparkcatcher Flytrap again.

"This plant is a useful reminder that something capable of consuming hostile magic may also consume helpful magic. It cannot understand intention. It understands appetite, structure, and what its own nature allows it to digest."

The Flytrap opened wider.

Aidan stepped behind Elara.

She looked back at him.

"I thought you wanted to know whether it ate people."

"I have gathered enough evidence for the moment."

Professor Sprout shifted the tray beneath her arm and looked toward Greenhouse One.

"The first lesson has already begun, although none of you has entered the classroom. That is one advantage of Herbology. The subject does not recognise doors as boundaries."

She led them toward the greenhouse.

As Matthew followed, he glanced once more at the five medicinal plants. Each had an ordinary relative in the Muggle world. Magic had not replaced the original nature of the plants. It had intensified, redirected, or complicated what was already there.

Moon-Lavender still calmed.

Recall Rosemary still carried memory.

Frostmint still cooled.

Ember Aloe still soothed burns.

The Flytrap still consumed what wandered too close.

Magic had not removed their essential character.

It had given that character greater reach and more dangerous consequences.

That felt worth remembering.

Greenhouse One appeared to be breathing.

Warm air pressed against its fogged glass, swelling and fading as ventilation panels near the roof opened in response to changes in temperature. Strange leaves shifted behind the condensation. Something pale tapped twice upon the glass overhead before withdrawing into the foliage.

Aidan stood close enough to the door that his breath added another small cloud.

"Do the greenhouses always look as though they are deciding whether to eat people?"

Katie adjusted her satchel. "Only when you stand nearest the entrance."

Elara had already put on her dragon-hide gloves. "Professor Sprout said Greenhouse One contains beginner plants."

"That does not answer whether the beginner plants eat people."

Professor Sprout opened the door.

Warm, wet air rolled over them, carrying the layered scents of soil, sap, crushed leaves, mushrooms, bark, flowers, and water warmed beneath glass. The heat fogged Matthew's spectacles for a moment. He removed them, wiped the lenses with a clean cloth, and replaced them before entering.

"Come inside and close the door quickly," Sprout instructed. "The blue creepers become adventurous whenever the temperature changes."

Aidan entered first.

A narrow blue vine detached itself from a trellis beside the door and followed him into the greenhouse. It moved with startling speed, curling once around the lowest button on his robe before he realised it had reached him.

Sprout caught the vine gently between both gloved hands.

"That is Livia. She does not bite, but she collects buttons."

Aidan looked down.

The button had vanished.

Professor Sprout returned the vine to its trellis. Livia wrapped herself around the wood and displayed the stolen button among three others caught between her leaves.

"May I have it back?" Aidan asked.

Livia drew the button farther into the trellis.

"You may negotiate after class," Sprout told him.

"With a plant?"

"Livia has already stated her position."

Matthew liked Herbology before the formal lesson properly began.

The interior of Greenhouse One was larger than the outside suggested. Long worktables ran through the centre, each fitted with drainage channels, brass tool hooks, and small runes that regulated temperature beneath the work surface. Raised beds occupied the walls. Shelves held jars of dried leaves, roots, berries, fibres, seeds, powdered bark, and preserved flowers. Some glowed through the glass. Some shifted as students passed. One large canvas sack expanded and contracted with a slow breathing motion.

The Hufflepuff first-years were already gathering near the marked safety line. Their conversation carried less competitive energy than the Gryffindors', though one boy had become engaged in a serious disagreement with a pair of gloves that refused to recognise which hand belonged inside them.

Professor Sprout placed her tray upon the demonstration bench and waited until everyone stood behind the yellow line.

"Herbology is not the study of potion ingredients," she began.

Her voice carried easily through the rain striking the glass roof.

"It is the study of living magical plants and fungi, some of which later become potion ingredients. Remember the jar and forget the life which produced it, and you will misunderstand both."

Matthew wrote the sentence at the top of a clean page.

Sprout noticed.

Her eyes rested briefly on the silver seams of his ward-cloth before moving across the rest of the class.

"This year, you will learn identification, safe handling, magical soil preparation, root health, watering, harvesting ethics, dormancy, propagation, and the difference between a plant reacting to your presence and a plant attempting to kill you."

A Hufflepuff boy raised his hand.

"How large is the difference?"

"Usually several teeth."

The class became more attentive.

Sprout uncovered her tray.

It held ordinary medicinal herbs beside their magical cousins. She had brought the same five varieties the Gryffindors had noticed outside, though the classroom samples were smaller and protected beneath glass cloches.

"Before we begin the Wiggenweld garden," she said, "you will learn why recognising a familiar shape does not grant permission to treat a magical plant as ordinary."

She touched the glass over the Moon-Lavender.

"This plant resembles common lavender. If you harvest it while frightened or angry, the flowers absorb part of that magical agitation. The resulting oil may carry the emotional residue into a sleeping draught."

A Hufflepuff girl frowned. "Would that give the person angry dreams?"

"It may cause restlessness, irritability, or dreams shaped by the harvester's fear. This is why professional cultivators settle themselves before cutting restorative plants."

Matthew wrote:

The ingredient begins recording before it leaves the soil.

Professor Sprout looked over his page.

"That is a useful way to remember it."

She moved to Recall Rosemary.

"This plant turns toward voices because sound and memory are linked in its magic. It should not be grown beside arguments, repeated lies, or classrooms where first-years practise pronunciation."

Aidan looked at the plant.

"Does it remember everything?"

"No. It retains patterns of attention, not complete conversations."

"So it cannot repeat gossip."

"Not in words."

The rosemary branch leaned toward Cassian Flint, who stood with the Slytherin group visible through the glass corridor leading toward another greenhouse. Cassian was not part of the class, but he paused long enough to stare through the connecting window before continuing.

Matthew noticed.

He did not let the interruption remove him from the lesson.

Professor Sprout uncovered the Frostmint.

Cold spread across the nearby table.

"Frostmint is useful for cooling fever, reducing magical inflammation, and keeping some potion bases below a reaction threshold. It should not be applied directly to nerve injuries without proper guidance. Numbness may feel like improvement while damage continues."

Matthew underlined the sentence.

The Ember Aloe glowed against the next glass cover.

"Its gel draws heat from magical burns. The gel must be allowed to darken before removal. If wiped away while still bright, the absorbed heat may return to the tissue or move into the healer's hand."

Katie looked fascinated. "The plant carries the heat away."

"It holds the heat temporarily. The used gel must be neutralised afterward."

Finally, Professor Sprout tapped the Sparkcatcher Flytrap's cloche with one fingernail.

The plant snapped at the sound.

"Its digestive fluid breaks down weak spell residue. However, it will also disrupt healing charms, privacy charms, and minor protective enchantments. Magical appetite is not moral judgement."

Matthew wrote that as well.

The five plants were removed from the demonstration bench.

Sprout replaced them with a bundle of dried nettles.

"Several of you used these in Potions. Nettle oils reduce inflammation when prepared correctly. Professor Snape requires bruising rather than powdering because structure controls release."

She placed one leaf upon a wooden board and pressed the flat of a tool against it. The surface darkened without breaking apart.

"Destroy too much structure too quickly, and a useful property becomes an irritant."

The pale veins running through the leaf reminded Matthew of magical channels beneath skin.

Professor Sprout carried the nettles toward a raised bed at the rear of the greenhouse. A low brass rail surrounded the soil. Three different species grew within it.

The nearest plants were compact and silver-green, their pointed leaves marked by pale veins that shimmered whenever the light changed. Beside them grew shorter plants with dark stems, visible black roots, and tightly closed white flowers. Behind both stood a row of young trees whose reddish bark carried natural spiral markings.

Sprout crouched beside the first row.

"These are Dittany plants. Tomorrow, Professor Snape will teach the foundational Hogwarts formulation of Wiggenweld Potion. Before you place a leaf into a cauldron, you should understand what it is, what it does, and how it was taken."

She lifted one leaf carefully without removing it.

"Dittany holds strong restorative magic along its central vein. Properly prepared, it encourages clean tissue to close, supports the regeneration of minor wounds, and helps damaged living structures remember their healthy pattern."

Matthew's attention sharpened so completely that the conversation around him seemed to retreat.

Professor Sprout pressed two fingers into the soil around the plant.

"Dittany prefers warm, mineral-rich earth, moderate sunlight, and less water than most first-years believe kindness requires. The surface should dry before you water again. Continuous moisture produces large leaves with weak roots and diluted restorative concentration."

"How do we know when the soil is dry enough?" Elara asked.

"Do not judge the surface alone. Place two gloved fingers into the soil near the edge of the root zone. If the lower earth remains cool and slightly damp, the plant has enough water."

"What happens if the roots dry completely?" Katie asked.

"The restorative veins contract. The leaf remains green for several days, which often causes inexperienced gardeners to believe the plant has survived without harm. By the time the colour changes, the magical damage has already occurred."

Matthew looked at the silver lines within the leaf.

"Again, the visible change arrives after the important damage."

Sprout glanced at him. "Often."

Aidan raised his hand.

"Can Dittany heal itself?"

"A healthy plant may close small cuts along its leaves. It cannot restore a destroyed root system simply because it contains restorative magic."

"Why not?"

"Possessing a property does not make the plant unlimited. A fire-breathing creature may still freeze. A healing plant may still die."

Professor Sprout removed a curved silver knife from her apron.

"Dittany is harvested from the outer growth. Support the stem with one hand. Cut above the lower branching point. Never tear it."

She placed her fingers gently beneath one mature leaf and made a single clean cut.

A warm, sharp fragrance entered the greenhouse, carrying something of thyme, rain, and heated stone.

The curse scars beneath Matthew's right sleeve tightened.

He became still.

The reaction began near his wrist. Warmth travelled upward along the outer edges of the scars, stirring the golden current without reaching the darker centre of the residue. It felt as though the healthy skin around the old wounds had recognised the plant and leaned toward it while the curse itself remained cold and separate.

Professor Sprout noticed the change in his posture.

"Did the Dittany affect your scars?"

The class turned.

Matthew disliked becoming the centre of the room without choosing it, but Sprout's question had been direct rather than invasive.

"The living tissue around the outer pathways became warm," he said. "The deeper residue did not respond."

Professor Sprout accepted the description without asking him to expose his arm.

"Restorative magic often recognises the tissue surrounding an injury even when it cannot reach the injury's cause."

Matthew looked at the cut leaf.

"Could Dittany close a wound while leaving dark magic inside it?"

The greenhouse grew quieter.

The Hufflepuff boy near Aidan lowered his quill.

Katie stopped moving.

Sprout's expression became serious.

"Yes."

She waited long enough for the answer to settle.

"That is why Dittany must be used with judgement. It encourages flesh to close. It does not independently determine whether poison, curse residue, foreign matter, or damaged magical structure has been removed first."

Matthew wrote:

Closing is not always curing.

Professor Sprout watched the words form.

"Keep that sentence."

She wrapped the cut Dittany leaf in damp cloth and moved toward the white-flowered plants.

"This is Moly. The white flower and black root are its clearest identifying features. Moly dislikes iron. Use wooden, stone, or silver tools around it."

Aidan examined the exposed roots.

"It looks as though someone planted the flower upside down."

Professor Sprout touched one closed blossom.

It opened beneath her glove, revealing a pale centre that shone briefly.

"Moly appears in protective and restorative preparations. It helps some potions resist hostile magical interference."

Matthew leaned closer without crossing the brass rail.

"So Dittany directs repair, while Moly helps prevent foreign magic from changing the instruction."

"That is simplified, but it is an excellent first understanding."

"Does Moly remove the hostile magic?"

"Not necessarily. Resistance and removal are different functions. A wall may prevent an intruder from entering without removing an intruder already inside."

That comparison reached him immediately.

"Then Moly could help the Wiggenweld remain restorative while it encountered curse residue, but it would not automatically cleanse the residue."

Professor Sprout regarded him with careful approval.

"Correct."

She moved to the young trees.

"These are Wiggentree saplings. Their bark contributes to several restorative potions and gives Wiggenweld part of its name."

The reddish bark carried faint whorls resembling runes. Some spirals turned clockwise. Others divided and rejoined like streams around stones.

Katie raised her hand.

"Do we remove bark from one of these?"

"Not from the trunk," Sprout said firmly. "Removing a complete ring interrupts the channels carrying water, nutrients, and magic through the tree. The tree may die, and the bark will retain the memory of being taken through mortal injury."

Matthew looked at the natural spirals.

"The harvesting method changes what the ingredient carries."

"Precisely. Bark for restorative work comes from branches already selected for pruning. The branch is removed cleanly. Only the outer bark is shaved, and the cut upon the tree is sealed with a clay-and-moonwater dressing."

Sprout pointed to a pale patch near the base of one sapling's branch.

"The tree continues growing. The harvested material retains stable restorative structure rather than the magical shock of being wounded to death."

That principle settled deeply inside Matthew.

Protection which destroyed its source was not protection.

Healing material harvested by killing the plant might carry injury into the potion intended to restore someone else.

Aidan studied the bark.

"Can the potion tell whether the tree was harmed?"

"The potion does not think in words," Sprout replied. "It carries the magical condition of its ingredients. Bark taken through violent damage may produce bitterness, instability, or a tendency to close too aggressively around whatever the brew encounters."

"Plants remember how we treat them," Katie said.

"Not as humans remember. Their structure remembers."

Matthew looked toward the spiralling bark.

Bodies remembered too.

His body remembered a curse even where his mind had been sealed.

Professor Sprout returned to the demonstration bench and uncovered a series of ingredients arranged in order.

A bowl of honeywater.

Two curls of Wiggentree bark.

Crushed Moly leaves.

Fresh Dittany.

A narrow bottle of cloudy Flobberworm mucus.

"This is the school formulation you will brew tomorrow," she said. "It is not the only Wiggenweld recipe in Britain, nor is it the strongest. It is a controlled foundational restorative suitable for first-year instruction."

She lifted the bowl.

"The honeywater carries the ingredients gently. It prevents the first extraction from becoming too harsh."

The bark came next.

"Wiggentree establishes the restorative direction and supports stamina."

She touched the Moly.

"Moly helps preserve that purpose when the potion encounters minor hostile magic."

Then the Dittany.

"Dittany supports clean tissue and closure."

Finally, the bottle.

"Flobberworm mucus binds the ingredients into one stable preparation. Too little and the potion separates. Too much and it becomes medicinal paste with the texture of regret."

Several students laughed.

Professor Sprout smiled.

"A correctly brewed Wiggenweld may restore depleted stamina, support recovery from minor wounds, reduce ordinary inflammation, and counter certain sleeping draughts. It does not reverse death. It does not replace a curse-healer. It does not cleanse every dark enchantment merely because the potion is described as healing."

Matthew raised his hand.

"Could it strengthen the healthy tissue around an embedded curse?"

"Yes."

"Could that give the body enough support for its own magic to work more effectively?"

"Possibly."

"Could it also strengthen tissue around the residue and make later removal harder?"

Professor Sprout looked at him for a long moment.

"Yes."

No one laughed now.

"The answer depends upon the curse, the pathways, the seal, the patient, and the dose," she continued. "A restorative potion can help the body. It can also change the boundary around an injury. That is why treatment should follow diagnosis rather than hope."

Matthew lowered his hand.

He wanted the potion to help.

Wanting did not decide what it would do.

Professor Sprout distributed shallow planting trays. Each pair received three Dittany seeds, one rooted Moly cutting, warm mineral soil, and a small measure of moonstone grit.

"The plants you prepare today are for later observation. Professor Snape's ingredients will come from mature greenhouse stock. Potion-making and Herbology should not be taught as though ingredients appear in cupboards through administrative magic."

Matthew worked with Katie.

Aidan partnered with a Hufflepuff boy named Martin Pritchard, who watched Livia's stolen button from across the greenhouse as though negotiating a rescue plan.

Elara worked beside a quiet Hufflepuff girl whose careful labels were even straighter than hers.

The Dittany seeds were smaller than Matthew expected. Each carried a faint silver line along one side.

"Vein upward," Professor Sprout reminded the class. "A seed will turn if planted incorrectly, but forcing a plant to spend its first growth correcting your mistake is poor care."

Matthew made three shallow depressions in the prepared soil. He placed each seed with its silver line facing the surface and covered it lightly.

Katie leaned closer.

"Why not press the soil down?"

"Roots need contact, but they also need space."

"Like the Lumos charm."

Matthew looked at her.

She shrugged. "Flitwick said too much control made it rigid."

"That is a good comparison."

Katie smiled.

They moved to the Moly cutting. Its black roots curled tightly around one another. Katie supported the stem while Matthew began arranging the roots in the second pot.

The roots recoiled from the metal buckle on his glove.

"Professor Sprout said it dislikes iron," Katie observed.

Matthew removed the right glove and placed it away from the pot.

The roots relaxed.

As his scarred hand moved nearer, the Moly flower opened by a fraction.

Not toward the dark residue.

Toward the golden current beneath it.

Matthew breathed slowly, keeping the magic gentle.

The flower's pale centre brightened.

Katie watched.

"It likes the gold."

"It may recognise the current as protective."

"Or restorative."

"Possibly. We should not decide from one response."

Katie nodded, accepting the correction without losing her interest.

They mixed moonstone grit into the upper layer of soil and left enough loose earth for water to enter.

Professor Sprout came to their table while Matthew was recording the Moly's response.

"You are separating observation from conclusion."

"Yes."

"Good."

Matthew looked up.

"Which plants are used when the wound contains dark residue?"

Sprout rested both hands on the table.

"That depends upon what the plant is being asked to do. Dittany may repair clean tissue. Moly may help restorative magic resist interference. Wiggentree stabilises the healing direction. Moondew cools inflamed magical channels."

"Which one removes the residue?"

"No single plant."

The answer contained no comforting lie.

"A plant may draw, cool, close, resist, nourish, or stabilise," Sprout continued. "Curse cleansing requires knowledge of the curse, the tissue, the magical pathways, and the behaviour of the foreign magic. An ingredient which draws dark magic may also draw living magic. One which closes the wound may seal the residue inside. One which reduces pain may hide evidence that the condition is worsening."

"The order matters."

"The order nearly always matters."

Sprout's expression softened.

"You are asking the correct question. Do not force the plants to provide one answer simply because you need one."

Matthew looked at the young Dittany pot.

"I will not."

The need remained.

It did not change what the plants could safely do.

Professor Sprout led the class toward a large glass case covered by a heavy dark cloth. When she removed it, thick green tendrils shifted across damp soil.

Several students stepped backward.

"This is a controlled cutting of Devil's Snare," she said. "It thrives in darkness and damp conditions. It responds to panic, trapped warmth, pressure, and blind struggling by tightening."

She raised her wand.

A strong white light formed above the case.

The tendrils recoiled, curling toward the darkest corner.

"Devil's Snare teaches an important defensive lesson. The trapped person must stop fighting long enough to understand what the plant is responding to."

Matthew felt Mrs Tanaka's teachings settle beside the demonstration.

Force used without understanding could strengthen the thing one was trying to escape.

"What happens if someone casts fire while another person is trapped?" he asked.

"The plant retreats from heat," Sprout replied, "but uncontrolled flame may injure the trapped person. Strong light or carefully directed warmth is safer unless the situation leaves no alternative."

"The weakness of the threat is not automatically a safe solution."

"Exactly."

She covered the case again.

"First-years do not handle Devil's Snare directly. You learn recognition because recognition is part of survival."

The final practical exercise involved repotting Puffapod seedlings.

Each plant carried soft green leaves and three pale pods. Their roots were visible through temporary glass pots, curling through soil threaded with silver mineral grains.

Matthew and Katie received one together.

"Magical plants respond to touch, sound, intention, surrounding magic, and environmental change," Sprout explained while demonstrating how to loosen the roots. "That does not mean they think as humans do. It means speech is not the only evidence that something notices how it is treated."

Katie loosened the soil.

Matthew supported the stem.

When his right glove moved near the exposed roots, the Puffapod's leaves folded inward.

He stopped.

Katie looked alarmed. "Did I hurt it?"

"No. It reacted to me."

Matthew moved his left hand closer.

The leaves opened slightly.

When his right returned, they tightened.

Professor Sprout came to their table.

She watched the response.

"The plant senses the curse residue."

Matthew's shoulders became still.

"Does it believe I am dangerous?"

"It recognises damaged magic and does not understand what the damage means."

He removed the glove.

The branching scars appeared pale beneath the greenhouse light.

He breathed slowly and allowed the golden current to move toward his palm without forcing it through the shoulder.

Warm gold appeared beneath the skin.

The Puffapod's leaves opened.

One root extended toward his hand.

It did not touch him. It rested near the warmth as though testing the difference between curse and healing.

Professor Sprout became very quiet.

"What is that current?"

"Knight family survival magic. It kept me alive after the curse. The complete body discipline remains locked in the family Grimoire."

Sprout nodded, accepting the explanation without reaching toward him.

"The plant distinguishes the current from the residue."

"Then it understands my magic better than the Ministry did."

Something changed in Sprout's face.

"Plants have fewer political reasons to ignore what they sense."

Katie pressed fresh soil around the roots.

The Puffapod settled into the larger pot.

One pale pod opened without exploding.

Five silver seeds rested inside it in the shape of a star.

Sprout leaned closer.

"That is unusual during repotting."

"What does it mean?" Katie asked.

"It accepted the environment."

Matthew looked at the roots.

Herbology was not merely the origin of potion ingredients.

It was living magic negotiating with the world through root, soil, pressure, light, damage, and trust.

He loved it.

By the end of the class, he had asked about moon-flax, medicinal fibres, defensive vines, wand woods, and whether harvested plant material retained magical behaviour after being woven into cloth.

"Sometimes," Sprout answered while helping Martin recover a Puffapod pod which had rolled beneath the table. "Nettle fibres remember irritation. Moon-flax holds temperature work well. Bowtruckle-tended wood often accepts protective carving more readily. The material carries what the plant naturally does, not merely what the maker wants."

"Could moon-flax support the temperature layer of ward-cloth?"

"Possibly."

Matthew opened his design notebook.

Professor Sprout sighed.

"No harvesting from the greenhouses without permission."

"I was writing a material question."

"You may write the question."

"May I request a sample later?"

"You may request one after studying fibre retention."

That was a path.

Matthew did not need immediate access to recognise that the door existed.

The bell rang from the castle.

Students began cleaning their stations. Tools were washed, dried, and returned to the correct hooks. Soil was brushed from the tables into collection trays rather than onto the floor. Professor Sprout inspected every newly planted pot before allowing it to be placed on the nursery shelf.

Cedric Diggory passed through the connecting corridor carrying a tray of mature seedlings. His charcoal ward-cloth showed beneath his Hufflepuff robes, and narrow gold lines appeared along the seams when he adjusted the weight.

Sprout noticed immediately.

"Mr Diggory, is that the Knight commission?"

"Yes, Professor."

She examined the close cuffs without touching them.

"Those sleeves would save half the seedlings destroyed by ordinary school robes."

Cedric smiled toward Matthew.

"They also survive shed doors."

"The shed was not approved testing," Matthew said.

"It remained useful evidence."

Katie laughed.

Professor Sprout looked between them.

"I am already regretting teaching Mr Knight that magical plants may become cloth."

"He knew cloth before plants," Cedric replied.

"That does not improve the situation."

Matthew helped Katie place their Puffapod on the shelf. When he turned back, the rest of the students had begun leaving.

Aidan had recovered neither his button nor Livia's respect.

He stood beside the trellis with both hands on his hips.

"I would like my property returned."

Livia curled around the button.

Aidan sighed.

Professor Sprout handed him a small wooden bead.

"Offer a trade."

Aidan held out the bead.

Livia's nearest tendril touched it, withdrew, and then slowly extended the button.

Aidan exchanged them.

The vine immediately carried the bead higher into the trellis.

Aidan fastened the button into his pocket.

"I negotiated successfully."

"You paid for your own button," Elara said.

"Successful diplomacy often involves compromise."

Matthew suspected that definition would concern Hermione.

The other students started back toward the castle, but Matthew remained beside the demonstration table while Professor Sprout checked the lids on several specimen jars.

Katie stopped at the door.

"Are you coming?"

"I want to ask Professor Sprout about the healing plants."

Elara looked toward the rain-darkening grounds.

"We will save a table in the library."

Aidan lifted one finger. "Near the western window, but not beneath the shelf that sneezes dust."

"That shelf does not sneeze," Katie said.

"It released dust directly onto me."

"You pulled the wrong book."

"That does not excuse the shelf."

Matthew adjusted his satchel.

"I will meet you there."

His friends left with the Hufflepuffs. The greenhouse door closed behind them, and the noise of the departing class faded into rain.

Professor Sprout finished securing the final jar before turning to Matthew.

"You stayed for a larger version of the same question."

"Yes."

She placed both hands upon the worktable.

"Ask."

"Which plants act upon the body, which act upon the curse, and which only reduce symptoms?"

Sprout studied his face before answering.

"Separate three questions. What keeps the patient alive? What removes or weakens the foreign magic? What repairs what remains after the foreign magic is gone?"

"The golden current keeps me alive."

"Then the first answer is already active inside you."

"I need the second and third."

"Yes."

She unwrapped the Dittany leaf harvested earlier.

"Dittany belongs mainly to repair. It encourages clean tissue to close and regenerate. It may support the body during cleansing, but it should not be trusted to perform that cleansing."

She touched one closed Moly flower.

"Moly belongs partly to resistance. It may help a restorative preparation retain its purpose when hostile magic attempts to redirect or corrupt it."

Her fingers moved to the Wiggentree sapling.

"Wiggentree bark carries restorative stability. It supports stamina and helps a potion hold its healing direction."

"Frostmint or Moondew?"

"Frostmint cools ordinary inflammation and mild magical heat. Moondew is gentler upon active magical pathways and more suitable during curse treatment."

"Ember Aloe?"

"It draws surface heat. Useful for burns. Dangerous if someone mistakes cooling for cleansing."

"Sparkcatcher fluid?"

"For weak external residue, perhaps. Not for deep living pathways."

"Mandrake?"

"Powerful in certain magically arrested, petrified, or transformed conditions. Specific, difficult, and not a universal cure."

"Could any plant draw the residue out?"

"Some plants and fungi draw magical contamination. They may also draw living magic, nutrients, memory, heat, or blood when prepared badly."

Sprout's expression became grave.

"A curse is not a splinter simply because you want to pull it free."

Matthew looked at his notes.

"What would proper treatment require?"

"A curse-healer who understands the residue. A potioner who understands restorative interactions. A herbologist who understands the living ingredients. Someone who understands the seal around your core. Records of every step."

"And consent."

"Yes."

"I do not trust a healer chosen by Dumbledore."

"I know."

"You know about the hospital refusal."

"Professor McGonagall informed the staff that you declined examination and that the matter was not to become gossip."

Sprout cleaned sap from one glove.

"You do not have to hand someone your body merely because they possess a title. You may begin with questions. Ask what they intend to examine, what they will record, who receives the records, and whether a witness may remain."

She gestured toward the rows of plants.

"Trust may be cultivated in stages. Herbology teaches that more honestly than politics."

Matthew looked toward an empty bench beneath the eastern windows. It stood apart from the first-year worktables and received steady filtered light.

"Will you teach me the plants?"

"I will teach what I know and tell you where my knowledge ends."

"That is what I want."

Professor Sprout pointed toward the bench.

"You may use that space for a restorative botanical study. Dittany and Moly first. If your work remains careful, we may add Moondew, Recall Rosemary, and a Wiggentree cutting."

Matthew's attention sharpened.

"May I observe how they respond to the golden current?"

"You may observe voluntary proximity responses. You will not place curse residue into the soil, apply raw sap to your scars, cut yourself, or turn the greenhouse into an uncontrolled medical experiment."

The conditions belonged to the work rather than claiming authority over every choice he made.

Matthew considered them.

"I agree."

Sprout handed him three blank labels.

"What will you call the study?"

Matthew wrote:

RESTORATIVE BOTANICAL STUDY

Beneath it, he added:

SUPPORT IS NOT CLEANSING. CLOSURE IS NOT CURE.

Professor Sprout read the second line.

"That is worth remembering."

Matthew placed the label at the front of the bench.

The project had not given him a cure.

It had given him distinctions.

For now, those were more valuable than hope without structure.

The rain had strengthened while they spoke.

By the time Matthew left the greenhouse compound, evening had begun gathering over the grounds. The castle windows glowed warm above him, their reflections trembling in puddles along the path. He raised the weather line in his ward-cloth, and the outer fabric tightened slightly around his shoulders while the hood unfolded from the collar.

The inner medical seams remained warm beneath his right side.

He crossed the grounds alone.

The first sign that something was wrong came when the side door beneath the covered arcade refused to open.

Matthew had used the door twice already. It connected the lower courtyard to a passage near the entrance hall and carried no password, student restriction, or time lock.

He pressed the iron handle.

It did not move.

A small brass plaque beside the frame read:

ACCESS TEMPORARILY RESTRICTED FOR MAINTENANCE

The plaque had not been there when he passed that morning.

Matthew touched the edge.

The brass was warm.

Not from the weather.

Magic moved beneath it in a thin, precise layer.

He stepped back.

The maintenance notice contained no name, no date, and no school-work seal. Professor McGonagall's notices carried her square initial mark. Filch's carried an ink stamp and usually a complaint. This plaque contained neither.

Matthew tried the main entrance.

The doors opened without resistance.

Inside, the entrance hall was quieter than usual. Most students had already reached the library, common rooms, or evening clubs. Rain struck the high windows. Torchlight reflected from the wet edges of his cloak.

Matthew headed toward the marble staircase.

It began moving before he placed one foot upon it.

That was not unusual.

The direction was.

Instead of joining the broad second-floor landing, the staircase turned toward a narrow east passage Matthew had never used.

He waited.

The staircase stopped.

Matthew remained where he was.

After several seconds, the stone steps moved again.

They returned to him.

He placed one foot upon the lowest tread.

The staircase began turning toward the east passage once more.

Matthew stepped back onto the floor.

The staircase stopped midway.

A portrait beside the landing showed three wizards playing cards. All three painted figures had turned their chairs away from the hall.

"Excuse me," Matthew called.

None answered.

One wizard lifted a hand and pulled a painted curtain across the frame.

That was unusual enough to become evidence.

Matthew unfolded Percy's route map.

The lines rearranged themselves around his location. A red path led from the entrance hall to the library by way of the central stairs.

When Matthew looked up, the central stairs had turned away again.

The map's red line shivered.

Then it redrew itself toward the east passage.

Matthew looked down at it.

"You are being influenced."

The map did not answer.

He touched one finger to the parchment. The magic inside it felt ordinary: school-bound, responsive, and confused rather than malicious. Something elsewhere was altering what the map believed available.

Matthew folded it and returned it to his pocket.

He crossed the entrance hall toward the north corridor.

A suit of armour stepped into the doorway before he reached it.

Metal scraped across stone.

The armour lowered its halberd.

Matthew stopped.

"Is the corridor closed?"

The empty helmet turned toward the east passage.

"That is not an answer."

The armour tapped the halberd against the floor and pointed again.

Matthew's glasses warmed against his temples.

The warning remained mild, not the sharp heat of direct mental intrusion. Magic was pressing against perception and choice, nudging rather than commanding.

He moved closer to the wall beside the armour and placed his left palm against the stone.

Hogwarts magic was vast.

He had felt it since arriving: old, layered, contradictory, filled with repairs, protections, forgotten habits, and the residue of generations. It did not move in one clean direction. The castle's enchantment was more like a forest of roots than a single spell.

The magic guiding him now was different.

It lay across the older structure like a ruler placed over tree branches.

Thin.

Precise.

Recent.

It used Headmaster-level permissions to instruct doors, stairs, maps, and lesser animated objects without becoming part of the castle itself.

Matthew closed his eyes.

The pressure against his choices carried an echo he recognised.

Blue robes beside a hospital bed.

A wand lowering.

Magic closing around his mind and core like a door.

Dumbledore.

Matthew opened his eyes.

A conclusion was not proof.

The similarity was evidence.

The authority used upon the castle narrowed the possibilities considerably.

He addressed the wall beneath his hand.

"This is not your doing."

For one moment, nothing happened.

Then warmth moved through the stone beneath his palm.

Not words.

Not agreement in any human sense.

Recognition.

The suit of armour's halberd lifted by an inch.

The north corridor remained blocked.

The castle could not, or would not, fully oppose the authority laid over it.

Matthew withdrew his hand.

"If someone wants me to go east, I should understand why."

He turned toward the narrow passage.

The staircase settled into place before him.

That confirmation made his distrust colder.

He climbed.

The east passage was narrower than the main corridors and lit by fewer torches. The portraits along its walls showed old hunting scenes, ships upon stormy seas, and several severe-looking witches who pretended not to watch him.

At the first intersection, Matthew turned toward the library.

The door at the end of that corridor closed.

Its bronze handle melted smoothly into the wood.

He stopped.

A door behind him opened by itself.

Beyond it waited another eastward passage.

Matthew's right eye began to ache.

He breathed through his feet and continued—not because the route demanded it, but because he had chosen to inspect the structure.

The distinction mattered.

The corridor passed beneath a low arch and opened into a disused armoury. Dust covered racks where weapons had once hung. Two headless suits of armour stood near the walls. A cracked shield bearing an unfamiliar crest rested beneath a torn tapestry.

Matthew recognised the location from Dumbledore's feast warning.

The old east gallery beyond the disused armoury.

Unstable floors.

Disagreeable portraits.

A lower staircase that carried students somewhere difficult to retrieve.

The warning had been delivered with humour.

The entrance ahead contained nothing humorous.

A broad arch stood at the far end of the armoury. Beyond it, a long corridor disappeared into dim blue light. The stone floor was divided into alternating black-and-white sections. Portraits hung along both walls, but their painted surfaces showed only grey mist.

A rope barrier had been placed across the entrance.

The rope was untied.

One end lay on the floor as though someone had opened it for him.

Matthew stopped six paces from the threshold.

The arms of his glasses became hot.

A voice came from inside the corridor.

"Matthew?"

Hermione.

The sound was exact enough to tighten his chest.

It carried her tone, her clipped consonants, and the small rise at the end of his name when she had found something worrying but had not yet decided whether to argue.

Matthew did not move.

The linked book inside his satchel remained cold.

Hermione was in Dartford.

No version of the castle could place her inside a forbidden corridor without first violating several far more important laws.

"Matthew," the voice called again. "The lock is wrong. I need you."

The final sentence failed.

Hermione would not say I need you as bait. She would state the problem. She would describe the danger. She would not ask him to cross an unknown threshold without giving him enough information to evaluate it.

The voice possessed her sound.

It did not possess her structure.

Matthew approached only until the toes of his boots remained two feet from the arch.

A faint line of silver magic crossed the threshold at ankle height.

He crouched.

The line was almost invisible unless viewed through the reflection of his glasses. It ran from one side of the arch to the other, then divided into branching channels beneath the black-and-white floor.

He did not touch it.

The first rune hidden near the base of the arch represented subject.

The second represented response.

The third, partly disguised within an older school mark, meant record.

Matthew's attention sharpened.

This was not simply a dangerous abandoned corridor.

It was an assessment structure.

He raised his wand but did not cast.

The cedar-and-cherry wood warmed in his hand.

Through careful observation, he began separating the layers.

The oldest magic belonged to Hogwarts. It stabilised the gallery, maintained the portraits, and controlled the moving lower staircase Dumbledore had mentioned. The floor was not structurally unstable in the ordinary sense. It was designed to transfigure its own arrangement under certain conditions.

A second layer had been added later, probably for defensive instruction. The black-and-white stones could rise, sink, vanish, or become barriers in response to movement. The mist-filled portraits were capable of offering contradictory directions. The corridor taught students not to trust every visible path.

That alone would have been dangerous to an unprepared first-year.

The newest layer was worse.

It formed a fine silver-blue lattice through the arch, walls, and ceiling. A copying charm waited within it. Any spell cast beyond the threshold would be caught, mapped, and reproduced by the gallery's older echo wards. The first response would be repeated at half strength. The second at equal strength. The third would return stronger while the floor changed beneath the caster.

The test would learn.

Matthew followed the silver lines farther.

At the end of the visible corridor stood a dark mirror beneath a cloth. The newer lattice connected directly to it.

Memory magic.

Not enough to tear open a mind from a distance. Enough to read emotional pressure at the surface and construct a voice, shape, or threat that the subject would find difficult to ignore.

Hermione's false voice had come from the mirror.

The structure did not merely test spellcasting.

It tested what made the subject abandon caution.

Matthew's glasses darkened into a faint mirror sheen.

He imagined what waited deeper inside.

The gallery would begin with physical instability. Then conflicting instructions. Then spells copied back at him. If he continued, the mirror would show someone endangered—Hermione, Vivian, perhaps Robert or Jessica—forcing him to choose between his boundaries and the illusion of rescue.

Meanwhile, every ward, charm, defensive movement, and magical reaction would be copied by the silver lattice.

The test had been designed to learn his magic.

His ward-cloth.

His wand.

His golden current.

Possibly the structure of the Knight family seal.

Matthew's anger became very quiet.

Dumbledore had warned the entire school away from the corridor.

Then someone had used Headmaster authority to direct Matthew toward it alone.

The route itself isolated the subject. The false voice exploited connection. The recording lattice waited to collect whatever he did.

A test.

Not education.

Not safety.

Observation without consent.

The false Hermione called again.

"Matthew, please."

He looked toward the mirror hidden at the end.

"You used the wrong word."

The voice stopped.

The corridor became silent.

Matthew lowered his wand slightly.

He could leave.

That was the safest decision.

It was also incomplete.

Dumbledore—or whoever had used his authority—wanted to learn what Matthew did when confronted by an unknown ward.

Matthew could provide an answer.

Just not the one expected.

He turned his attention to the arch rather than the corridor.

The entrance wall was old Hogwarts stone. The newer silver lattice had been laid over it without fully bonding to the castle. That meant a temporary ward could be placed upon the threshold if the castle accepted the anchor.

Matthew pressed his left palm to the stone beside the arch.

"I do not claim this wall," he said quietly. "I am not trying to close an emergency route or interfere with the castle. I ask permission to place a witness upon what crosses."

The stone remained cold.

Matthew waited.

He did not force magic into it.

After several breaths, warmth gathered beneath his palm.

A narrow crack in the mortar shone gold.

Permission.

Limited.

Conditional.

Enough.

Matthew removed a small spool of dark blue ward-thread from the emergency pocket inside his tunic. The thread had not yet been enchanted. It existed for temporary repairs, marking safe paths, or building basic physical relationships when drawing directly upon stone would be unwise.

He tied one end around the iron bracket beside the arch.

Then he passed the thread across the entrance without crossing the threshold and secured it to a matching bracket on the other side.

The false Hermione remained silent.

The silver scribe line near the floor brightened, studying him.

Matthew raised his wand.

He began with place.

The first rune formed in the air near the left bracket, gold edged in silver. It identified the threshold without claiming ownership of the corridor beyond.

Next came maker.

The Knight shield-and-key mark appeared in a reduced form, not as a declaration of family property but as a record of responsibility.

The third rune meant purpose.

Witness.

Not punishment.

Not imprisonment.

The fourth defined passage.

Emergency aid, legitimate school safety, and anyone fleeing immediate danger would not be obstructed.

The fifth defined intent.

Curiosity alone would not open the seal. Surveillance, magical extraction, and concealed assessment would leave a visible trace.

The sixth meant force.

Any attempt to break, overwrite, dispel, or bypass the ward would be recorded by magical signature and school authority.

The seventh meant release.

The seal could be removed safely by Matthew, Professor McGonagall acting openly for student protection, or the castle itself if the ward interfered with a genuine need.

Matthew placed each rune slowly.

The scars across his right hand warmed as he worked, but the golden current remained controlled. He did not push power directly through the injured pathways. The cedar-and-cherry wand carried the structure while the physical thread held the relationship between both sides of the arch.

The silver recording lattice reached toward the forming runes.

Matthew felt it touch the edge of the first layer.

He had expected that.

He altered the sequence.

Instead of hiding the ward entirely, he allowed the lattice to read a simple first-year locking charm—harmless, incomplete, and technically true. Beneath it, the witness structure folded inward through the Contexta principles.

Visible key.

Protected context.

Anyone analysing only the outer pattern would see a child's attempt to mark a forbidden door.

Anyone attempting to interfere would meet the deeper question.

Matthew spoke the anchoring phrase.

"A test without consent first tests the one who set it."

The runes brightened.

The dark blue thread rose from the physical line and became a ribbon of light stretched across the arch. Seven symbols settled along its length.

The first layer resembled the Clavis Contexta.

The second was different.

It did not ask the reader to identify a document.

It asked:

WHAT DO YOU INTEND TO PROTECT?

The corridor's silver lattice touched the question.

Static burst through the arch.

For one second, the mist-filled portraits beyond the entrance flashed white. The black-and-white floor shifted. A section three yards inside sank into darkness before returning.

The false Hermione's voice distorted into a low metallic sound.

The recording charm had attempted to copy the ward.

Instead, it had copied the question.

The deeper mirror at the end of the gallery flickered beneath its cloth.

Matthew added one final feature.

If someone used hidden authority to bypass the ribbon, every torch within the armoury would turn gold and the word WITNESSED would appear above the arch. A pulse would travel to the matching thread sewn inside Matthew's left cuff.

No stinging charm.

No retaliation.

No injury.

Only evidence.

He touched the release rune.

The ward stabilised.

The dark ribbon became nearly invisible except where the seven golden symbols hovered against it.

The castle stone beneath Matthew's palm cooled.

Permission had ended.

He removed his hand.

"Thank you."

One torch in the armoury brightened.

He chose to treat that as acknowledgement.

The corridor beyond the ribbon remained silent.

Matthew stepped backward.

The rope barrier on the floor lifted by itself, attempting to return across the entrance.

His ward allowed it. Physical warning did not conflict with the witness seal.

The rope tied itself.

Matthew looked down the corridor one final time.

The hidden test had not disappeared.

The floor still waited.

The portraits still held false directions.

The echo wards still prepared to copy and return spells.

The mirror still waited to wear the face of someone he loved.

He had not defeated it.

He had refused to enter upon someone else's terms.

That was enough.

Matthew turned away.

The moment he left the disused armoury, the castle's routes returned to normal.

The north corridor opened.

The central staircase swung into place.

The bronze handle reappeared upon the door leading toward the library.

Confirmation was not proof of Dumbledore's personal involvement.

It was strong evidence that the route had been deliberately constructed and ended when its purpose failed.

Matthew recorded the sequence before continuing.

The library's western windows had turned dark with evening by the time Matthew arrived.

Aidan, Elara, Katie, and Julian occupied their usual table beneath the lamps. Books formed uneven walls around them. Aidan had drawn a diagram of a Dittany plant which looked more like a tree struck by lightning. Elara was correcting his root labels. Katie had begun a list of magical fibres. Julian was reading the Transfiguration text with such concentration that he did not notice Matthew until Katie looked up.

"There you are."

Relief entered her voice before she covered it with a question.

"Professor Sprout kept you?"

"At first."

Aidan looked at the clock. "Herbology ended nearly an hour ago."

"The castle altered my route."

Elara's quill stopped.

"What does that mean?"

Matthew removed his wet outer cloak and draped it over the back of a spare chair. He sat carefully, keeping the right shoulder clear of the wooden edge.

"Doors locked before I reached them. Staircases refused the normal landing. My map altered itself around routes which should have remained open. Suits of armour directed me east."

Aidan's eyes brightened despite the concern around them.

"Where did it take you?"

"The forbidden east gallery."

Julian closed his book.

"The corridor Dumbledore warned everyone not to enter."

"Yes."

Katie leaned forward. "Did you go inside?"

"No."

Aidan looked both relieved and disappointed.

"What was there?"

"A test."

Matthew described the threshold, the copying lattice, the echo wards, the shifting floor, the mist-filled portraits, and the memory mirror.

He did not claim certainty where he had only interpretation. He identified which runes he had seen, what the lines connected to, which effects had activated, and what he inferred from their relationship.

Elara listened without interrupting until he finished.

"You believe it was intended specifically for you."

"The route isolated me. The mirror used Hermione's voice. The copying lattice was designed to record whatever I cast."

"Could the mirror have copied the voice of anyone approaching?"

"Yes. That remains possible. The route remains the stronger evidence of targeting."

Julian's expression had become pale.

"Did it enter your mind?"

"The glasses detected pressure against attention and surface emotion. I found no evidence of deep access."

Aidan folded his arms.

"You should have come to get us."

Matthew looked at him.

The sentence had not been given as an order. It carried fear and frustration rather than an attempt to claim authority.

"The route separated me before I understood what it was doing."

"You could have written through the linked book."

"I could have."

Aidan waited.

Matthew did not avoid the conclusion.

"I should have sent a short notice before examining the threshold."

Aidan's shoulders loosened.

"I am not saying you need permission."

"I know."

"I am saying I would rather know which forbidden corridor to search after you disappear."

"That is reasonable."

Katie glanced toward the dark grey linked book inside his satchel.

"What did you do at the entrance?"

"I placed a witness seal across it."

Aidan's expression changed from concern to delight.

"You warded Dumbledore's forbidden corridor."

"I warded the entrance to record interference."

"That sentence does not make it less impressive."

Elara looked less amused.

"Could the ward trap another student?"

"No. It allows emergency passage, escape, and legitimate safety intervention. It records surveillance, forced entry, magical extraction, or concealed assessment."

Julian leaned closer. "How does it distinguish concealed assessment?"

"Intent structure. Not thoughts. The magic must carry a purpose into the threshold. If someone touches the ward with a spell designed to analyse what crosses, the purpose becomes part of the contact."

"What happens?"

"It records the signature, school authority, and method. The outer layer appears to be a simple lock. The deeper layer asks what the opener intends to protect."

Aidan smiled. "What if the answer is nothing?"

"Then the ward records that."

Katie looked toward the library doors.

"You think Dumbledore will touch it."

"If he set the route, he will want to know why the test failed."

Elara tapped the end of her quill against the table.

"If someone else set it using Headmaster authority, Dumbledore may still investigate the seal."

"Yes."

"Then contact by his magic would not prove he created the original route."

"No."

The distinction pleased Matthew.

"You would work well with Hermione."

Elara's expression became uncertain. "Is that a compliment?"

"Yes."

Aidan leaned back.

"I have been trying to decide that for several days."

Madam Pince appeared at the end of the table.

"Why have the five of you stopped reading?"

Aidan opened his mouth.

Matthew answered first.

"We require introductory material concerning Hogwarts route-control enchantments, Headmaster permissions, threshold assessment wards, and historic defensive galleries."

Madam Pince looked at him.

"You have returned from Herbology."

"Yes, Madam."

"And require architectural ward law."

"Yes, Madam."

"What did you do?"

"Placed a temporary witness seal on a forbidden corridor."

The librarian closed her eyes.

Aidan looked impressed by Matthew's honesty.

Madam Pince opened them again.

"Did you enter the forbidden corridor?"

"No."

"Did you damage a school ward?"

"No."

"Did you anchor magic directly into castle stone without permission?"

"I requested permission from the castle and received a limited response."

Madam Pince stared.

"How did the castle answer?"

"Warmth through the mortar and a visible gold line. The permission ended when the ward stabilised."

Her expression changed.

Not approval.

Recognition.

"Which corridor?"

"The east gallery beyond the disused armoury."

Madam Pince went completely still.

"The gallery was decommissioned forty-three years ago."

"The assessment lattice is newer."

"How new?"

"Less integrated than the school wards. The silver-blue overlay used Headmaster-level route permissions."

Madam Pince's fingers tightened around the books she carried.

"Remain here."

She disappeared between the shelves.

Aidan looked at Matthew.

"You frightened the librarian."

"That is concerning."

"She frightens everyone."

"That does not make the reversal harmless."

Madam Pince returned carrying a large book bound in faded brown leather.

She placed it on the table with both hands.

Hogwarts: Defensive Architecture, Restricted Student Edition

The final words appeared to have been added later.

"You may read Chapters Two and Four," she said. "You may not copy the diagrams in Chapter Seven. You may not attempt any ward described as historic, experimental, abandoned, sealed, or regrettable."

Aidan looked at the book.

"Does it truly say regrettable?"

Madam Pince opened the contents page and pointed.

Chapter Eleven: Architecturally Regrettable Defences of the Eighteenth Century

Aidan appeared deeply interested.

"You are not reading Chapter Eleven," she told him.

He closed his mouth.

Matthew opened Chapter Two.

The section described Hogwarts's route-governance system. Staircases, doors, lifts, maps, and animated guardians could be temporarily directed by the Headmaster, Deputy Head, caretaker, or emergency ward network. The system existed for evacuations, quarantines, active threats, and preventing students from entering dangerous areas.

One paragraph had been underlined by a previous reader.

The castle may accept direction, but long-term coercion creates structural resistance. Hogwarts distinguishes between guidance consistent with its protective purpose and control imposed for private ends, though its responses are rarely verbal or immediate.

Matthew copied the sentence.

Elara read over the public book.

"The castle can resist."

"It did not stop the route."

"It may have been unable to oppose Headmaster authority directly."

"Or the test was framed as student safety."

Katie pointed toward the paragraph.

"Private ends create resistance. The castle warmed the stone when you asked permission."

"It may have recognised that the witness ward served protection better than the route did."

Julian opened Chapter Four.

It described defensive galleries used for advanced student instruction during earlier wars. One diagram showed a corridor whose floor adapted to spellcasting and whose walls repeated recent magic.

"The Echo Gallery," Julian read. "Built in 1874 after three seventh-years were injured practising duels inside an ordinary classroom."

Matthew turned the book.

The diagram resembled the corridor he had seen.

The original gallery tested movement, spell selection, and environmental awareness. It had not contained a memory mirror or a magical copying lattice designed to archive individual technique.

A handwritten note in the margin read:

Closed after an assessment mirror caused prolonged identity confusion in two students. Mirror removed by order of Headmistress Dilys Derwent.

Matthew looked at Julian.

"The mirror returned."

"Or another one was added."

Aidan leaned closer.

"Identity confusion?"

Julian read the paragraph.

"The mirror learned emotional associations and produced increasingly convincing images. Students began doubting which version of events had occurred outside the test."

Katie's face tightened. "It lied until the student could not remember what was real."

"Yes."

Matthew thought of Vivian's missing memories.

The corridor had been chosen carefully.

Not merely because it could test his spells.

Because it could press directly against the wound Dumbledore had created.

The linked book inside his satchel warmed.

Hermione had written.

Matthew opened it.

The page remained ordinary from his side. To anyone else, the writing vanished behind grey static.

You are late reporting Herbology.

Matthew began writing.

Professor Sprout approved a restorative botanical study. Dittany affects the healthy tissue around the curse but not the residue. On the route to the library, Hogwarts doors and staircases were manipulated to direct me to the forbidden east gallery.

Hermione's response appeared before he completed the next sentence.

Were you alone?

Yes.

Did you enter?

No.

A pause.

Good.

Matthew continued with the route, threshold, false voice, copying lattice, echo wards, adaptive floor, and mirror.

Hermione's writing became smaller and tighter.

The false voice used mine?

Yes.

What did it say?

Matthew recorded the exact words.

It is inaccurate.

I know.

I would have described the lock before asking you to cross an unknown boundary.

That is how I recognised it.

A longer pause followed.

That is both reassuring and disturbing.

Matthew described the witness seal.

Hermione asked about emergency passage, castle permission, damage risk, false positives, and the exact language of the intent question.

He answered each in order.

You believe Dumbledore created the route.

I believe Headmaster authority directed the castle. The overlay feels similar to the magic used in the hospital seal. That is not independent proof of authorship.

Good. Keep the similarity and the route authority as separate evidence.

I have.

What happens when someone touches the seal?

The ward records magical signature, authority, method, and declared or carried purpose. It sends a pulse to my cuff.

Could the person detect the deeper layer before triggering it?

Possibly, if they understand Contexta principles or dismantle it from outside the threshold.

Dumbledore may.

Yes.

Then the absence of a signal will not prove no one examined it.

Matthew looked at the page.

That was irritatingly correct.

I will record that limitation.

Hermione's next sentence appeared more slowly.

I wish you had written before examining the corridor.

Matthew rested the quill against the page.

So does Aidan.

I am not ordering you to report every time a staircase behaves badly.

That would be frequent.

I am saying an unknown route separated you from witnesses and used my voice to draw you into a magical test. Writing danger first would have been appropriate.

Matthew considered the rule on the first page of the linked book.

Yes. I should have written.

Thank you.

No lecture followed.

The correction remained complete without becoming a leash.

Tonks arrived while Matthew and Hermione were still exchanging details.

She approached the table carrying a stack of Defence books and stopped when she saw the old architectural volume open between them.

"Why are first-years reading about the Echo Gallery?"

Aidan pointed at Matthew.

"He warded it."

Tonks looked at him.

"You did what?"

"I placed a witness seal across the entrance."

"Why were you at the entrance?"

"The castle route was altered to take me there."

Her hair changed from pink to deep red at the roots.

"What happened inside?"

"I did not enter."

The red softened slightly.

Matthew explained.

Tonks remained standing until he mentioned the false Hermione voice. Then she pulled out the empty chair beside Katie and sat.

"I know that corridor."

"How?" Matthew asked.

"Rumours. Seventh-years dared one another to find it when I was in third year. Most could not. One Ravenclaw entered and came back six hours later insisting only twenty minutes had passed. Another student heard his sister calling from inside. His sister was at home."

"The mirror was active then."

"Maybe."

Tonks looked at the book.

"Last year, the entrance was sealed with a proper school ward. Professor Flitwick caught two students trying to break it and gave them detention for a month."

Matthew's attention sharpened.

"The school ward is gone."

"Then someone removed it."

"Could a Headmaster remove it?"

"Obviously."

"Could anyone else?"

"McGonagall, perhaps Flitwick with authorisation, maybe the castle's wardmaster if Hogwarts still has one. I do not know."

Elara looked at Tonks.

"Dumbledore warned students away from the area during the feast."

"He warns them every year," Tonks said. "Usually as a joke. Most students hear 'forbidden' and think 'interesting.'"

Matthew thought of the open rope barrier and manipulated route.

"The warning may have prepared the story. If I entered and became injured, everyone would already know I ignored a public instruction."

Tonks's hair lost the remaining pink.

"That is a serious conclusion."

"It is an inference."

"But plausible."

"Yes."

Madam Pince looked toward them from the central desk.

Tonks lowered her voice.

"What did your ward ask?"

"What do you intend to protect?"

Tonks considered the question.

"That is going to annoy whoever opens it."

"That is not its purpose."

"It can be both."

Matthew almost smiled.

The library clock chimed.

Dinner would begin in twenty minutes.

They gathered their books. Matthew returned the architectural volume directly to Madam Pince, who inspected its spine, pages, and margins before accepting that no new diagrams had been copied.

At the doors, Tonks caught Matthew's sleeve lightly and released it the moment he stopped.

"I am not telling you never to go near the corridor again."

"That sounds like a sentence you had to revise before speaking."

"It was."

She looked toward his cuff.

"I am asking whether the ward will tell you if someone enters while you are asleep."

"Yes."

"And whether you will tell someone before returning."

Matthew considered.

"If I return, I will notify at least one person first."

Tonks nodded.

"That is all."

No command.

No attempt to forbid the investigation.

Only a request for a witness.

Matthew accepted it.

The Great Hall was warm after the cold library corridors.

Candles floated beneath the enchanted ceiling. The sky above them showed the last fading blue of evening, though stars had begun appearing in the east. Students filled the four tables, carrying the noise of an entire day into dinner.

Matthew sat with Aidan, Elara, and Katie. Julian joined the Ravenclaw table but chose a place near enough that they could see him.

Tonks returned to Hufflepuff after promising to meet Matthew in the courtyard the following morning.

Food appeared.

Roast chicken.

Potatoes.

Carrots.

Bread.

Gravy.

Stew.

No curry.

Matthew accepted the continued failure of Hogwarts cuisine with quiet disappointment.

Aidan loaded his plate.

"Tomorrow we brew Wiggenweld."

"Elara and I do," Matthew said. "You and Oliver will produce something which may or may not remain in the cauldron."

Aidan looked offended.

"Our Cure for Boils was nearly correct."

"It squeaked."

"That was not part of the written assessment."

"It was part of the potion."

Katie turned toward Matthew.

"Will you ask Snape whether Wiggenweld can be tested on the scars?"

"I will ask what a professional dose might do. I will not drink a first-year classroom potion."

"That is disappointingly sensible," Aidan said.

Elara cut a potato in half.

"Snape would probably refuse even if you wanted to."

"Refusal would be reasonable."

Across the hall, Professor Sprout was speaking to Snape at the staff table. A small wooden case rested between them, probably containing the mature Dittany, Moly, and Wiggentree bark required for the next day.

Snape opened the case.

He examined one leaf.

Then his gaze travelled across the hall and found Matthew.

No expression crossed his face.

That did not mean he had failed to understand why Sprout was speaking to him.

Matthew looked toward Dumbledore.

The Headmaster sat at the centre of the staff table wearing deep blue robes embroidered with small silver stars. He appeared to be listening to Professor Flitwick, though his fingers rested near a goblet and his attention seemed divided.

His blue eyes moved toward Matthew.

The arms of Matthew's glasses warmed.

Not enough to darken completely.

Enough to warn.

Matthew broke eye contact and returned to his plate.

Aidan was explaining why Livia's theft should be considered tuition rather than loss.

Elara disagreed.

Katie sided with the plant.

Matthew listened with half his attention.

The other half remained with the witness seal.

Whoever had laid the route might wait until later to inspect it. Dumbledore could delegate the task. He could dismantle the ward without touching the deeper layer. He could ignore it completely.

The absence of action would prove nothing.

Matthew ate.

He did not allow anticipation to turn every breath into evidence.

Halfway through dinner, the inside of his left cuff became hot.

Matthew's fork stopped.

A golden line appeared beneath the fabric.

The signal moved through the ward-thread in three distinct pulses.

Contact.

Authority.

Interference.

Elara noticed his stillness.

"The seal?"

"Yes."

Matthew touched the cuff beneath the table.

Small runes appeared across the inside of his wrist, visible only within the ward-cloth's privacy field.

THRESHOLD CONTACT ESTABLISHED.

AUTHORITY: HEADMASTER'S KEY.

METHOD: OVERRIDE AND ANALYSIS.

EMERGENCY PURPOSE: ABSENT.

DECLARED PROTECTIVE PURPOSE: NONE.

A final line formed.

RECIPROCAL QUESTION DELIVERED.

Matthew lifted his eyes.

At the staff table, Dumbledore's hand had stopped halfway toward his goblet.

The pause lasted less than a second.

Then he continued the movement and drank.

Professor Flitwick was still speaking beside him.

No one else appeared to notice.

Dumbledore looked toward Matthew.

This time his smile held something new.

Not anger.

Not surprise alone.

Recognition.

He knew he had been observed.

Matthew's glasses warmed again.

He did not look away immediately.

The Headmaster's eyes were bright, patient, and almost kind.

That was the most dangerous part.

Matthew broke contact on his own terms and looked down at the runes.

Aidan leaned close without trying to see beneath the cuff.

"What happened?"

"The Headmaster's key touched the ward."

Katie's hand tightened around her cup.

"Dumbledore?"

"The school identified the authority, not necessarily the person holding it."

Elara nodded.

"Could someone else use his key?"

"Possibly. The method included analysis and no emergency purpose."

"What did the reciprocal question do?" Aidan asked.

"It required the person opening the seal to encounter the ward's central question."

"What do you intend to protect," Katie remembered.

"Yes."

Aidan looked toward Dumbledore.

"What answer did he give?"

"None."

The word carried more weight than Matthew intended.

Elara's gaze travelled to the staff table.

"Do not stare," Matthew said quietly.

She returned to her plate.

"I was not going to confront him."

"I know."

Across the Hall, Dumbledore resumed speaking with Flitwick as though nothing unusual had happened.

Matthew recorded the signal beneath the table.

Time.

Location.

Authority.

Method.

Purpose absent.

He did not write:

Dumbledore set the test.

That conclusion remained unproved.

He wrote:

The Headmaster's key investigated the witness seal shortly after Matthew refused the directed assessment route.

That was enough.

For now.

The linked book warmed inside his satchel.

Matthew waited until dinner ended before opening it. The Great Hall was not the place for private correspondence, and the ward event was stable enough to survive twenty minutes without becoming less true.

When the plates cleared, Dumbledore rose.

"Before we retire," he said, his voice carrying easily through the Hall, "I should remind all students that several eastern passages remain closed for their own protection. Hogwarts is an old castle, and old structures occasionally object to youthful curiosity."

A few older students laughed.

Matthew did not.

Dumbledore's gaze passed across the Gryffindor table.

"Boundaries," the Headmaster continued, "are most useful when those they protect understand why they exist."

Matthew's cuff warmed once.

The words were for him.

He answered without speaking.

The question still waited inside the Headmaster's magic.

What do you intend to protect?