Hearing Professor McGonagall's inquiry, Lin Yue instinctively shifted her gaze from the fallen giant to Harry and Ron. As soon as their eyes met, both boys involuntarily shuddered twice. Then, without hesitation, Harry recounted the entire story, leaving nothing out. Hermione, who was equally shocked, didn't have time to interrupt him to help him and Ron explain themselves.

"It was... it was us this morning who made Hermione cry, causing her to cry here all afternoon. Lin Yue should know about this and is worried that Hermione might encounter the troll, so she came to find her."

"Ron and I also... came over because Hermione didn't know about the troll, and then we encountered the troll. Lin Yue then,"

Harry paused for a moment, checking Lin Yue's expression for any change before continuing, "defeated the troll."

Although there had been speculation before Harry spoke, when it was confirmed that it was indeed Lin Yue who had defeated the troll, the professors present couldn't help but cast incredulous looks at her. After all, it was a troll, how many adults would dare to claim they could take one down alone? Yet, a first-year witch like Lin Yue managed to defeat it and even protect her classmates, which truly astonished the professors.

Professor Snape stepped over the remaining wall and entered the girls' bathroom, casting a few diagnostic spells at the troll that lay at one end of the bathroom.

"It’s dead,"

he turned to Dumbledore and the other professors, nodding to announce the Troll's death. Professor McGonagall took a deep breath, trying to calm herself, and looked seriously at Harry and Ron.

"Mr. Potter, Mr. Weasley, I think you really should learn to be more polite and respectful towards ladies. For your rudeness towards Miss Granger, each of you will lose five points for Gryffindor."

Seeing Harry and Ron with their heads down in disappointment, Professor McGonagall slightly raised her chin.

"However, the fact that you came to save your classmate despite knowing the danger shows your kindness. I hope you can maintain that and correct your issues with politeness, for your kindness and bravery, everyone gets an extra five points"

Everyone loses five points and then gains five points, so in the end, there are no points added or deducted, which made Harry and Ron feel a little better.

Turning to Professor Flitwick, Professor McGonagall gave a slight nod to him, Lin Yue is a student of Ravenclaw, so the decision on adding or deducting points should naturally be made by him. Professor Flitwick looked at Lin Yue, who was still standing in front of Hermione, feeling both proud and angry.

Proud of this student from her house for being excellent enough, brave enough, and kind enough.

Angry that she didn't seek help from the professor at first and took risks on her own, what would have happened if something went wrong!

However, no matter what, Lin Yue did defeat the troll, and as a first-year little witch, that is indeed worthy of extra points.

"Miss Lin Yue, for your actions today, I am giving you ten points. As a first-year little witch, defeating a troll is indeed an achievement worth more than ten points, but I am only giving you ten points because I hope that in the future, you will seek help from the professors whenever you encounter difficulties, and not take risks on your own."

Lin Yue slowly turned around to face Professor Flitwick, her expression unchanged and her tone devoid of any fluctuation.

"Okay, thank you, Professor. I will remember that."

Thanks to Lin Yue's rapid recovery of magical power, her face had regained its color, and the beads of sweat on her forehead had also subsided. Otherwise, if the professors saw her just now with a pale face and beads of sweat all over, they would undoubtedly send her to the medical wing without a second thought. At this moment, after handling the entire situation and seeing that the students were all fine, a few professors along with Principal Dumbledore finally turned their attention to the two walls that Lin Yue had destroyed.

Professor McGonagall and Professor Flitwick exchanged a glance and resignedly took out their wands. With professors like them around, Albus's personality wouldn't concern itself with these repair matters. Among the professors present, aside from him, Professor McGonagall was the most skilled in Transfiguration, while Professor Flitwick was the best at Charms. So there was no doubt that the task of repairing the wall would fall to the two of them.

"Miss Lin Yue, Miss Granger, you two come out first." Professor McGonagall nodded at the two girls.

Hermione quickly reacted, stepped forward, linked her arm with Lin Yue's, and brought her out. Professor Flitwick first waved his wand at the troll, causing it to float out of the girls' bathroom, and then he set the troll's body aside. Together with Professor McGonagall, they raised their wands—one using a restoration spell and the other using a transformation spell. In the blink of an eye, the two broken walls began to restore themselves as if the video were being played in reverse. The shattered bricks on the ground returned to their rightful places, and in the next moment, the two walls of the girls' restroom stood intact once again.

"Alright, I think you are all tired," said Professor Dumbledore, stroking his white beard and gently looking down at the four young wizards, including Lin Yue. "Why don't you go back to your common room, enjoy the rest of your dinner, and then have a good night's sleep?"

As he spoke, he mischievously winked at the four of them, and Hermione, Harry, and Ron couldn't help but smile and nod in response.

Lin Yue looked expressionlessly at the principal's gestures and nodded in agreement.

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After greeting their colleagues, Professor McGonagall and Professor Flitwick led their respective students towards their own house's common room. On the way back to the Gryffindor and Ravenclaw common room, they still had to walk quite a distance together. Walking behind the two professors, Hermione finally couldn't contain her curiosity and turned to look at Lin Yue.

"Lin Yue, did you just... really use the Levitation Charm to lift that wall and control it to hit the troll?"

Lin Yue turned her head and saw Hermione's sparkling eyes, and she nodded calmly.

"Yes, it's the Levitation Charm."

"Wow!" Hermione's eyes widened in amazement, I never thought the Levitation Charm could have such power. I mean, I thought it was just for helping to lift things and such."

Lin Yue shook her head without changing her expression, "Any spell, as long as the magical power is strong enough and used properly, can have many different uses and can produce very strong effects."

Professor McGonagall and Professor Flitwick, who were walking in front, nodded in agreement as they listened to Lin Yue's words. Lin Yue was right; the power of a spell has never been in the spell itself, but in the user and the way it is used.

It's not just the three Unforgivable Curses and dark magic that possess terrifying power if one knows how to use them well and has enough strength, even the most ordinary spells can unleash power comparable to, or even surpassing, that of the Unforgivable Curses.

Seeing Hermione's thoughtful expression, Lin Yue continued to explain in a calm tone.

"Take the Levitation Charm for example. If I have strong enough magical power, I could even levitate an entire building, or even a whole city, lift them into the sky, and then drop them down."

Hermione imagined the scene described by Lin Yue and couldn't help but shiver. It was simply too terrifying, if it were like that, the power could very well be comparable to that of a nuclear bomb. Harry and Ron, who were following behind, looked at Lin Yue with even more fear in their eyes. They had already made up their minds that they absolutely could not provoke her.

However, Professor Flitwick chuckled lightly at Lin Yue's words and turned around to look at her with a smile.

"That's a very interesting, yet dangerous idea, Miss Lin Yue. However, as far as I know, there are very few wizards who possess the kind of magic that can make an entire city float."

Lin Yue stared intently at Professor Flitwick, picking out the key point in his words.

"Very few means there are some, right, Professor?"

Professor Flitwick pondered for a moment and nodded, "The two people I know haven't done it, but they might be able to."

Lin Yue quickly listed the people that Professor Flitwick might know in her mind, and then she listed the people who might be associated with those individuals.

In the end, she effortlessly came up with two most likely names: "Professor Dumbledore and Gellert Grindelwald?"

Upon hearing the second name, Professor Flitwick's expression stiffened slightly, but he still affirmed, "Yes."

"Sorry, Professor, but what about the He-who-must-not-be-named?" Hermione couldn't help but interject, "I mean... he seems to be quiet, um, powerful? Although it might not be appropriate to say that."

This time, Professor McGonagall turned to look at her. "There's nothing inappropriate about it, Miss Granger. He-who-must-not-be-named is undoubtedly evil, but as a Dark Lord, we must also acknowledge his strength."

"As for why Professor Flitwick excluded him," Professor McGonagall paused, a complex expression flashing across her face, "it might be because, after he became famous, he really didn't use any unforgivable curses or fiendfyre , did he? So, it's hard to say to what extent he could use other types of magic."

"Oh, thank you, Professor." Hermione nodded in understanding.

After satisfying the curiosity of the two students, it was time to part ways.

Hermione took the initiative to gently hug Lin Yue, "Thank you for coming to save me, Lin Yue."

Lin Yue still felt nothing in her heart, but she followed the inexplicable thought that had arisen within her and returned the hug, mimicking Hermione's gesture.

"No need to thank me."

As she released Lin Yue, Hermione looked into her deep, calm eyes, like an ancient well, and suddenly felt a pain in her heart for reasons she couldn't understand.

"See you tomorrow." Suppressing her feelings, Hermione waved goodbye to Lin Yue.

"See you tomorrow." Lin Yue nodded and turned to follow Professor Flitwick towards the Ravenclaw tower.

Hermione, under Professor McGonagall's guidance, walked towards the Gryffindor tower with Harry and Ron.

Back at the entrance of the Ravenclaw common room, after saying goodbye to Professor Flitwick according to etiquette, Lin Yue answered the question posed by the door knocker and stepped inside.

Almost as soon as she walked into the common room and the door closed behind her, the Ravenclaws sitting in the common room having dinner erupted in excitement.

Watching her walk through the door, the others were discussing among themselves, wanting to approach her to ask something... but they hesitated due to her expressionless face and her unusually excellent grades. Only Cho Chang and Marietta, who shared the same dormitory and knew her personality better, along with the female prefect Penelope, went up to her.

Penelope had seen Professor Flitwick escorting her back and didn't think that her rational and intelligent Ravenclaws would confront a troll like that. She assumed that Lin Yue had done something similar to punishing herself and had been discovered by Professor Flitwick, so she approached her to talk.

She looked at Lin Yue with a serious expression and said, "Lin Yue, did you... do that thing again like last time and get caught by Professor Flitwick, so he wanted to talk to you?"

Lin Yue thought for a moment and understood what Penelope was referring to, so she shook her head expressionlessly.

"No."

"That's good..." Hearing the negative answer, Penelope let out a big sigh of relief, at least it wasn't another instance of self-harm.

Standing nearby, Cho Chang and Marietta were confused by their conversation.

"What did Lin Yue do last time?" Cho Chang looked at Lin Yue with concern and asked Penelope. If it was something that worried Penelope to this extent, even leading to a face-to-face meeting with Professor Flitwick, it must be a serious matter!

Penelope pressed her lips together and said, "It's nothing," before quickly changing the subject. She looked at Lin Yue with some confusion, "So why did you come back late? You even sneaked out of the group."

"Hermione doesn't know about the troll, so I went to find her."

"Oh..." Penelope, who knew some people in Gryffindor, was aware that Miss Granger had been brought to tears this morning and had cried in the girls' bathroom on the first floor. Wait, the first floor... Isn't that where Professor Quirrell said the troll was in the underground classroom?! "You didn't run into the troll, did you?!"

Penelope suddenly reacted, her voice rising an octave as she looked Lin Yue up and down, as if confirming whether she was missing any parts.

"I encountered it," Lin Yue affirmed in a calm tone.

"What?!" Now Cho Chang and Marietta were also unsettled, directly grabbing Lin Yue's arms, each checking her carefully.

Even the Ravenclaws, who usually wouldn't dare to step forward, put down the food in their hands and gathered around, looking at her with concern. This is Ravenclaw's treasure, a treasure that has added a lot of points to Ravenclaw, it absolutely cannot go wrong! Lin Yue allowed Cho Chang and Marietta to check her with their hands, while also enduring the concerned gazes of the Ravenclaws. She spoke in a flat tone, without any fluctuation, and stated the facts.

"I'm fine, I killed the troll."

The scene fell silent for nearly ten seconds, and both Cho Chang and Marietta paused in their examination of her body. After ten seconds, everyone in the Ravenclaw common room let out a unified gasp of surprise. After being strongly urged by everyone to recount the process of killing the troll in detail, Lin Yue continued to sit on the sofa, seemingly unaffected by the increasingly shocked and even awed gazes directed at her. She had only one thought in her mind to kill the troll, she had destroyed two walls of Hogwarts, which constituted damage to the school's public property. She probably needed to punish herself twice for that.