Harry is willing to believe in Gringotts, after all, sometimes you really don't know how much potential you have until you push yourself.
He put away the Two-Sided Mirror, waiting for the potion effects to pass.
Sitting in the Room of Requirement, Harry's mind constantly pondered possible places Cassandra might appear.
Vivi's location has now been locked, but Cassandra's whereabouts remain elusive.
Harry has always been the type to reciprocate kindness a hundredfold—even though Cassandra sometimes wears a sour face and likes to mock him, which is really annoying, Harry still hopes she is safe and sound.
In fact, Harry gradually understood that his foothold in Hogwarts a century ago was inseparable from Cassandra's efforts, it could even be said to be the main reason.
After almost half an hour, the Ageing Potion's effect slowly wore off, and he returned to his twelve-year-old appearance.
Passing by the second floor, he suddenly remembered the voice he heard today in Professor Lockhart's office.
This voice was very familiar; he had heard it more than once—the last time he heard it was last semester when Fitch's cat was petrified.
Harry followed the stairs downstairs, planning to head to Gryffindor Tower.
Just as he reached Lady Pang's portrait, he saw Percy coming out from inside.
"Oh, Harry." Percy greeted Harry very formally, "Good evening."
"Good evening, Percy." Harry replied.
"What did you go to do?" Percy asked curiously.
As the Gryffindor Prefect, Percy has the right and obligation to inquire of other students—even his own brothers, the Weasley Twins, he wouldn't turn a blind eye, let alone Harry.
Harry naturally understood Percy's responsibilities, so he answered truthfully, "Professor Lockhart asked me to help him write replies to his fans in his office, so I came back late."
"I see." Percy nodded reservedly, "I understand, quickly go back and rest, it's already late."
"Where are you going?" Harry asked curiously, "It's already so late, does the Prefect have to patrol?"
"Not necessarily." Percy explained, "Creevey's roommate came to report to me, saying that he is missing—Colin Creevey, the one who's always hanging around you with a camera around his neck."
Harry nodded in understanding, Creevey...
It's hard not to remember this kid.
At this point, Percy sighed.
"If my two troublemaker brothers—you know which two, if they weren't in the dormitory, their roommates definitely wouldn't notify me, but Creevey isn't someone who likes breaking school rules, so..."
The 'two troublemaker brothers' Percy referred to could only be Fred and George, the twins.
"I got it." Harry nodded, "But can you find him alone?"
"There will be four Prefects on patrol tonight, so I think there'll be enough manpower." Percy smiled at Harry, "Alright, Harry, you should go back..."
Before he could finish speaking, a voice came from not far away.
"Percy, Percy?"
It's a female voice, clear and pleasant.
Soon, a girl wearing a Ravenclaw robe with a Prefect badge on her chest came running over.
She was anxious, but upon seeing Harry, her expression slightly changed, cleared her throat, and corrected herself, "Weasley Prefect—"
Percy leaned his head back, solemnly, "Oh, good evening, Miss Kriwatt—what can I do for you?"
Upon hearing the name, Harry also recognized who this student was.
It's Ravenclaw's Prefect, Penelope Kriwatt.
Clearwater, ah, that's a pretty nice last name, Harry thought.
"We just found your Gryffindor first-year on the second floor." Penelope spoke quickly, "The one who's always holding a Muggle camera—"
At this, Penelope paused, trying to catch her breath.
"What happened to him?" Percy asked, instinctively sensing something was wrong.
"He's petrified, like Fitch's cat last year, like Mrs. Loli." Penelope sighed.
"What?" Percy asked in shock, "Where is he? Quickly take me to see him—Harry, you go back to the dormitory first."
"Let me go too, in case I can help with something?" Harry said, his curiosity piqued by what had happened.
Percy initially wanted to refuse, but recalling Harry's proficiency with magic spells, he allowed his request.
The pair followed Penelope up to the second floor.
Passing by a waterlogged puddle and turning left, Harry saw Colin lying on the ground, posing as if taking a photograph with his camera.
Beside him stood Hufflepuff Prefect Cedric Digory.
Seeing Percy approach, Cedric gave a worried smile, "You're here?"
Then he noticed Harry behind Percy, greeting, "Hello, Harry."
"Hello." Harry nodded, looking down at Colin on the ground.
Colin seemed thoroughly petrified, his skin turned grayish-white. One eye was tightly shut, the other wide open, aiming at the camera's viewer, one hand pressing the shutter as if capturing something.
"He's petrified." Harry didn't need to look closely, giving a confirmed answer: "It's not something a Petrification Spell can do, but... a very advanced Petrification Spell, look, Colin has turned to stone."