Harry sat in a chair at the back of the hall, watching everyone trying hard to imagine things—he noticed that Draco's expression now looked as if he was straining with constipation, while Ron seemed to be trying hard not to rush to the bathroom...
He held back and finally suppressed the urge to laugh out loud.
This wasn't very nice, after all, everyone is friends, how could he laugh at them?
"Step three:" Teckros shouted, "After I give the order... spin in place to enter a void state, move smoothly! Now listen to my command... One—two—three!"
Suddenly, the hall was full of people staggering around, and from Harry's perspective, it looked like everyone was collectively drunk, acting like fools in place.
Neville lay flat on the ground, Ernie leaped into the wooden circle with ballet-like movements, excited for a moment until he saw Dean laughing out loud at him.
"Hey, Ernie." Harry shouted, seeing Ernie turn around, he gave him a thumbs up.
Ernie, who was a bit unhappy about Dean's laughter, suddenly cheered up.
Getting Harry's approval meant his performance was indeed good.
"No problem, no problem," Teckros said dryly, seemingly not expecting better results, "Move the wooden circles back, stand in your original positions..."
The second attempt was not better than the first, and the third was equally bad.
It wasn't until the fourth attempt that something thrilling happened—someone let out a horrific scream, everyone turned around in shock to see Hufflepuff's Susan Bones staggering inside the wooden circle, but her left leg was still five feet away in the original position.
"Oh..."
Harry put his hand to his head, finding the scene a bit too gory.
He still remembered a century ago when everyone learned Apparition Displacement together, such a scene never happened...
The deans immediately went forward to help Susan fix her leg, but it was obvious that she was now terrified of Apparition Displacement.
"Good thing she didn't lose her head," Ron murmured to Seamus, "you'd better be careful when you're doing Apparition, don't create any explosive effects. If you blow yourself up, all right, but if it hits me, I won't let you off even if I become a ghost!"
"Oh shut up, Ron." Seamus rolled his eyes, "Even if you created explosive effects, I wouldn't be like that..."
So, never speak too soon, during the sixth attempt, Seamus suddenly shot out like a rocket, with a jet-explosive blast from his butt.
"Accio!"
Harry suddenly stood up, reaching out to Seamus.
Seamus only avoided the misfortune of flying out of the ceiling because of this, and when he landed, he promptly thanked Harry.
While expressing gratitude, he didn't forget to complain about Ron's jinxing mouth.
"Look, if it weren't for Ron jinxing me, how could I have flown out?" Seamus clicked his tongue and said, "Though this experience was indeed novel, I need to savor this feeling... You don't know, Harry, this feeling of flying out was much more thrilling than riding a Flying Broom, it's like I became the Flying Broom myself—what do you think we should call this spell if it's developed, Fire Crossbow Arrow? Or Becomin a Fire Crossbow Arrow?"
"You better expect the creators of the Fire Crossbow Arrow won't come after you for royalties." Harry rolled his eyes, "You might as well use some Muggle names, like rocket, missile, and so on, definitely no one will claim—if I remember correctly, isn't there a very famous missile in the United Kingdom now? It's called Trident, faster than the speed of sound, you could use that name, I believe the UK military won't come to you for royalties."
"Really?" Seamus asked skeptically, feeling this suggestion was not very reliable.
"You are a wizard, they are Muggles." Harry gave a simple answer, "But you need to ensure the safety of this spell first, otherwise, if you blow your thigh off, no one would dare to use this spell."
Seeing Seamus hesitating, Harry gave him another confidence booster.
"Let's put it this way, Seamus." Harry patted his shoulder, "Wizards are still lacking a good flying spell, aren't they? Apart from Apparition Displacement spells, I remember Voldemort had a flying spell but it was Dark Magic... If you can develop a flying spell, I believe the Merlin Order will definitely award you a medal."
And you know what, Seamus really got motivated.
He energetically said, "Alright, I'll study this new spell well... But when I'm experimenting, can you keep an eye on me? I'm scared to death..."
"Of course." Harry laughed, "Apart from me, I'll have the Dueling House gang watch alongside, and of course, Lavender, she should also see the great work of you developing a new spell, shouldn't she?"
This was just a small interlude, during the next experiment, Ron finally succeeded.
However...
Half of his hair was gone too.
Teckros saw that his teaching finally bore fruit, and he walked over with bright eyes, clapping vigorously.
"Well done, this—"
"Weasley, Ron Weasley." Ron said with distressedly touching his hair.
"Well done, Mr. Weasley!" Teckros applauded sincerely, "There are really few talented young wizards like you—can I give this student some points?"
"Certainly, Mr. Teckros." Professor McGonagall said with a smile.
"Then, twenty points to your house." Teckros patted Ron's shoulder, "Keep at it, young man!"
Ron was still distressed about his hair, not even noticing the points award—the top of his head felt a bit balding.
"What's this called?" Draco mocked, "I went bald, yet I became stronger?"
"Oh shut up, Malfoy!" Ron retorted angrily.
"Get some hair growth serum." Hermione walked over and said, "Madam Pomfrey should have some... It's not like your hair was completely shaved off, just a patch, it will grow back, won't it?"
By this time, Ron had actually figured it out, he put down his hand that was covering his hair, and sighed, "Alright, after class, I need to go to the school hospital, would you be willing to come with me, Hermione?"
"Sure." Hermione nodded.
They tried three more times, but apart from Ron, no one else successfully used Apparition Displacement again, and of course, no one like Susan the unlucky had their thighs misplaced.
After the class ended, Teckros was still smiling as he bid farewell to everyone, reminding them to adhere to the 3D principles.
The deans issued a stern warning before leaving—do not practice Apparition Displacement alone in private—even though the school is once again under the anti-Apparition Displacement restriction, the deans felt the warning was necessary.
What if some reckless student goes over to Hogwarts to try?
After the deans left, the students followed out of the hall, some planning to go to the courtyard, others to the common rooms.
Harry intended to go out for fresh air, but hadn't sat for long before Ron nudged him with his elbow, indicating for him to look over to the side.
Harry followed the direction Ron pointed, finding Lavender and Seamus completely unreserved, putting on a standing wrestling match on the spot.
The two were kissing passionately there like conjoined twins.
"Ah, this restless youth..." Harry sighed.
These two, how could they be so unreserved!
The impact is extremely negative!