After the professors unanimously decided not to recommend any additional reading materials to Lin Yue, she ultimately, just as Madam. Pince had thought, divided her energy for this part into other study projects. Amid her frantic studying, the students of Hogwarts finally welcomed Halloween.

Waking up on time as usual, Lin Yue sat at her desk reading while smelling the ubiquitous scent of pumpkin in the air. After a fleeting thought that today is Halloween, she continued to read with undivided attention.

The arrival of the holiday made the students even more excited during class, which was evident in their inability to sit still. As a result, Professor McGonagall had to adopt a stern expression to keep them in check. In this situation, when her gaze once again passed over Lin Yue, who remained calm and completely unaffected by the festive atmosphere, she couldn't help but be moved once more by the child's seriousness in studying.

After finishing her Transfiguration class in the morning, Lin Yue quickly shouldered her backpack and walked out of the classroom, heading straight for the great hall. She sat down precisely in her usual spot and, without even looking, grabbed food with her knife and fork and put it into her mouth. While she was eating quickly, the conversation of two Gryffindor passing by caught her attention.

"Yeah, Granger was made to cry by Weasley, right? She was crying in the girls' bathroom on the first floor and wouldn't let anyone comfort her."

"Merlin... Although Granger is indeed a bit, well, special, it's still a bit unchivalrous to make her cry."

Listening to the conversation between the two Gryffindor, Lin Yue's hands, which had been moving steadily while eating, paused slightly, and then continued to eat quickly as if she had just loaded back in.

Hermione was so upset that she cried, and in her emotionless mind, she could only come to this conclusion. She didn't even feel that maybe she should comfort the other person. After finishing lunch, Lin Yue picked up her backpack and headed straight to the History of Magic classroom, where she began to seriously read the book she had borrowed from the library.

In the afternoon, listening to Professor Binns on the podium, whose voice was as flat as a straight line and devoid of emotion, making people drowsy, Lin Yue quickly took notes in class. Compared to other students, she felt that there was nothing wrong with Professor Bins's way of speaking, and it didn't make her sleepy. Of course, this might also be because she spoke in a similar manner herself and didn't feel drowsy. If Lin Yue had no reaction when she heard Hermione crying in the girls' restroom on the lower floor during lunch, it was another matter altogether.

That night at the Halloween dinner, when Lin Yue heard it again, she clearly felt her heart thump. It was as if it was telling her that she should do something, but what exactly should she do? Lin Yue couldn't figure it out, she didn't know. She could solve very difficult math problems, but she truly didn't know what her heart wanted her to do at that moment. Since Hermione was crying, maybe... she could help her wipe her tears or wash her face?

Lin Yue continued to eat without stopping, her mind racing with thoughts. Just as she finished her dinner in three and a half minutes and was about to get up to leave the auditorium, a loud crash echoed as the auditorium doors swung open. Professor Quirrell, wrapped in a large headscarf, stumbled in, shouting at Principal Dumbledore, who was seated at the teacher's table.

"Troll…. In the dungeon! Troll…. In the dungeon! I thought you should know..." And then he collapsed directly onto the floor.

The great hall fell silent for two seconds. After two seconds, almost all the students stood up in fright, screaming in terror as if a giant monster wielding a huge club was about to smash them into a pulp right in front of them. Lin Yue looked calmly at the terrified students, showing no reaction as she stood up to pack her bag. Just as she slung her bag over her shoulder, a deep, authoritative, and soothing elderly voice rang out.

"SILENCE!"

The great hall fell silent in an instant. Headmaster Dumbledore's voice reminded the young wizards that they were in the auditorium, where many professors and Headmaster Dumbledore were present. Even if a giant troll came, they would be safe and sound. Headmaster Dumbledore scanned the four houses with his eyes and quickly made arrangements.

"Prefects, take your house students back to the common room. Professors, follow me."

Lin Yue followed the Ravenclaw group to the head of the year, preparing to return to the common room as per Professor Dumbledore's instructions. However, before she could steady herself, a sudden thought popped into her mind, disrupting her steps.

Hermione was still in the girls' restroom on the basement level, and she was unaware of the troll situation; she might encounter the troll. Three facts suddenly appeared in Lin Yue's mind, causing her to quicken her steps once again and swiftly turn to the side.

In fact, her heart remained as calm as well water, deciding to find Hermione for the same reason she had saved Neville back then. It was simply the instinct to help others when she was able to. The difference this time was that helping Hermione would mean going against the instruction just given by Professor Dumbledore to return to the common room.

Lin Yue strode out of the auditorium, her right hand resting on her left arm, which still bore the bruises. Because Professor Snape had never given her a perfect score in Potions class, she had to punish herself after almost every class. More importantly, after the incident where the prefect Penelope discovered her last punishment, Penelope would genuinely check her face every day to make sure she wasn't punishing herself again.

Therefore, she could only place the punishment on her arm, which resulted in the bruises on her arm never fully fading. She pinched a small area hard and quickly twisted it, adding another bruise to Lin Yue's left arm. But now she could go to the girls' restroom on the lower floor without any burden; she had already been punished, so she could break the rules.

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Boom!

With a quick push, Lin Yue stepped into the girls' restroom. Following the sound of someone sniffing, she walked to the door of a stall and knocked lightly.

"Who is it?" came Hermione's muffled voice from inside the stall, sounding a bit soft due to having cried for a long time.

"Lin Yue," Lin Yue replied in a tone devoid of emotion.

The stall door quickly opened, and Hermione stepped out, biting her lip as she hugged Lin Yue.

The feeling of thinking that I really have no friends has slowly been shattered.

"Wesley... said I'm a nightmare, and no one would want to be my friend..."

Lin Yue stood there in a daze, not returning Hermione's embrace, and mechanically spoke.

"You are a person, not a nightmare."

"Pfft..." Hermione chuckled softly, "Are you trying to make me happy?"

Lin Yue replied in a flat tone, "No, I'm stating a fact."

Hermione hugged Lin Yue and laughed gently for a moment, then suddenly remembered something, releasing Lin Yue and looking at her with a question.

"By the way, how did you get here?"

Lin Yue watched Hermione wipe the tears from her face and spoke in a calm tone, "Professor Quirrell announced at the banquet that there was a troll, and you didn't know, so I came to find you."

Hermione's hand, which was wiping her face, suddenly froze. She stared at Lin Yue with wide eyes, unable to believe what she was hearing.

"Tro… Troll? In Hogwarts?!"

"Yeah." Lin Yue nodded calmly.

Hermione took a deep breath, trying to calm herself down, and stepped forward to take Lin Yue's left hand, leading her towards the door.

"Let's hurry, let's get back to the common room, or go find a professor."

Lin Yue followed her footsteps towards the door, but the enormous footsteps she heard and the foul smell lingering in her nose made her realize that they probably wouldn't make it back to the common room or find a professor in time.Because these two points combined were enough for her to draw a conclusion: the troll was coming.

"It's too late." Lin Yue said this flatly, forcefully pulling Hermione behind her. Then the two of them saw the troll slowly walking into the girls' restroom, and the door slammed shut with a bang.

Hermione covered her face in terror and despair. Having not experienced much, she was now completely panicked and couldn't think of any way to respond.

The only thought in her mind was it's over... I've dragged Lin Yue down, the only person willing to be my friend, I've dragged her down.If it weren't for coming to find me, Lin Yue definitely wouldn't have come here. If she hadn't come here, she wouldn't have encountered the troll, and if she hadn't encountered the troll, she wouldn't have died...

"I'm not dead yet, and neither are you." Lin Yue stood in front of Hermione, expressionless, staring at the troll.

Did I accidentally say what I was thinking? Hermione snapped back to reality and looked at Lin Yue in front of her. Just as she was about to grab her and run to the side, she saw the troll already raising its enormous club.

Before the troll could make its next move, and before Hermione could pull her aside to run, Lin Yue raised her wand first. The spell slipped from her lips, and the ceiling above the troll was instantly warped by the transformation spell, forming a protrusion that drooped down and wrapped around the troll's club, preventing it from moving the club. The not-so-smart troll looked up in confusion, and at the same time, the door to the girls' bathroom opened, revealing Harry and Ron.

"Hey! Pig Brain!"

"Look at me! Fool!"

As soon as the two opened the door, they shouted loudly to attract the troll's attention, while gesturing for Lin Yue and Hermione to hurry over. Seeing the troll, now enraged after losing its club, turn and charge towards Harry and Ron, Lin Yue waved her wand with a flat tone, pointing at the wall on the outer side of the girls' bathroom.

"Wingardium Leviosa."

The other three, confused, turned their gazes to Lin Yue, completely unable to understand why she was casting a levitation spell at the wall. Crack, crack... The sound of breaking echoed continuously, and soon the other three realized what Lin Yue was up to with a loud bang, the entire wall of the girls' restroom on the outer side was torn down by Lin Yue using the levitation spell, and she controlled it to move between herself and the giant.

Attracted by the huge noise, the giant creature turned around again, only to see a sudden wall in front of it. What happened to the two small prey that had been behind it? Its not-so-large brain futilely tried to think, and this would be the last thought it could ever have in its life.

"Merlin..." In Hermione's surprised voice, Lin Yue gently waved her wand forward, and the wall she controlled slammed fiercely towards the giant creature.

Seeing this, Harry and Ron immediately ducked down, covering their heads as they lay on the ground outside the girls' restroom. The next moment, boom! A sound louder than the one made when the wall was just torn down echoed throughout the entire basement level, causing the professors and Principal Dumbledore, who were hurrying towards the scene, to furrow their brows instantly.

As the dust settled, Lin Yue looked ahead with an indifferent expression. The wall she had controlled with the levitation spell was now reduced to rubble, scattered across the giant's body. The giant lay on the ground, large pools of blood flowing from its body and head, clearly already a corpse.

The intensity of the impact was so great that even the wall behind the giant began to crumble. Lin Yue looked at the lifeless giant and slowly lowered her right hand, which was holding the wand. Her expression remained calm and unruffled, as if she were under no pressure at all, if one were to overlook her heavy breathing and the sweat pouring down her face.

The walls of Hogwarts are magically protected, capable of resisting both magic and physical impacts. Just now, when she used the Levitation Charm to break the wall, she clearly felt an immense resistance. Not to mention, she later increased her magical output to strengthen her Levitation Charm, which resulted in her not only slamming the giant but also destroying a wall in the process. Buried in the dust, Harry and Ron only dared to slowly sit up and cautiously look around once they felt the surroundings had calmed down.

Everywhere was dust and broken bricks; this area now resembled a ruin. Not to mention the girls' restroom, which was exposed due to the demolished walls, where a giant corpse lay covered in bricks. Two boys slowly turned their heads, looking at Lin Yue with fearful eyes. They felt as if they had lost their ability to speak, unable to utter a single word. Unconsciously, they felt a sense of fear towards Lin Yue, along with a bit of admiration. Hermione also swallowed hard as she looked at the figure in front of her, but there was no fear in her eyes-only admiration and adoration.

She had only felt this kind of emotion when watching the professors before.

"By Merlin's beard..." As soon as the professors were mentioned, they hurriedly rushed over, and when they saw this scene, they were all stunned.

Professor McGonagall even raised her hand to cover her mouth and let out a gasp.

Professor Flitwick opened his mouth in shock as he looked at the scene before him, while Professor Sprout stared in astonishment at everything happening. Even Professor Snape found himself momentarily at a loss for words. The only one present who seemed to regain composure was Professor Dumbledore, who, after observing the situation, turned his gaze to Lin Yue, who was standing in front of Hermione. Professor Quirrell did the same; his fingers twitched slightly, and a glimmer of darkness seemed to pass through his eyes.

Taking a deep breath, Professor McGonagall was the first to come back to her senses. She turned to look at Harry and Ron, who were still sitting on the ground, staring blankly at Lin Yue.

"Mr. Potter, Mr. Weasley, can you explain what exactly happened here?"