Being at Hogwarts, something's not right with this system.

Only then did Lin Yu finally realize the truth.

Draco did it on purpose. He invited Lin Yu to this duel to lure Lin Yu here, and then he told Filch so that Filch could come and arrest him.

Lin Yu was furious and felt cold. How could he, an adult, have been outsmarted by a child?

Just you wait, Malfoy, you'll regret this and pay the price.

"We should go back," Hermione finally caught her breath, and blushed slightly as she let go of Lin Yu's hand, only to find that it was no longer her holding Lin Yu, but Lin Yu holding her hand.

"Let go," Hermione whispered, awkwardly pulling her hand away.

Lin Yu then belatedly realized and said, "Sorry, I didn't notice."

Hermione rolled her eyes at him, thinking to herself, "Am I that insignificant?"

Just as Lin Yu and Hermione were about to call everyone to go back together, Harry and Ron appeared in front of a door without anyone noticing. They reached out and tried to pull it, but couldn't open it.

Ron said to Harry, "There's a spell that can open the door, but we haven't learned it yet."

For some reason, Hermione walked over with a helpless expression and said, "It's the Opening Charm, it's in our textbook, I've already memorized the spell."

Hermione took out her wand as she spoke.

After all, they had risked their lives to fight Lin Yu, so everyone was fully armed, wearing robes and carrying wands.

Hermione rolled her eyes at Ron and retorted, "I really don't know why you dare to say you want to be Lin Yu's assistant. I'd be better off doing it. Move aside."

Ron kept his mouth shut, praying in his heart, "Grandma, please stop scolding me."

Hermione mainly felt that Ron was too unreliable, the kind who was both incompetent and loved to play around.

He provoked Malfoy back on the train, and ended up being verbally attacked without being able to refute it.

Later, he got into trouble more than once because of his sharp tongue.

Despite not knowing many spells, she still became Lin Yu's assistant. Is all she has left is courage?

Once Ron stepped aside, Hermione held her wand to the keyhole of the door and said, "Alohomora."

It was the incantation for opening the door, and it was very accurate.

After all, Hermione is a true-blue British kid.

Therefore, the door in front of them was opened in front of the children.

Neville asked, puzzled, "What else do we need to do? Shouldn't we be going back?"

Hermione suddenly realized, "Wow, why did she open that door?"

Harry and Ron, however, had already gone inside.

"Wait, we can't keep causing trouble," Hermione tried to call out to the two.

Harry turned around and reminded him, "Didn't you open this?"

Harry's witty remark was indeed sharp, leaving Hermione speechless.

Hermione wanted to seek Lin Yu's approval, but found that Lin Yu had also walked through the door.

Helpless, Hermione could only sigh and was about to follow them.

Suddenly, Lin Yu turned around abruptly and hugged Hermione's petite body tightly.

Hermione shuddered, her eyes widening, and she forgot to resist.

Harry and Ron then scrambled out, shouting, "Close the door!"

Neville, who was standing there in a daze, had no idea what they saw inside the door, but he obediently closed it anyway.

Just before the door closed, Neville and Hermione vaguely saw what appeared to be a gaping maw.

Is there a monster hiding here?

Hermione, oblivious to being held tightly in Lin Yu's arms, exclaimed, "I know where we are! This is the fourth-floor corridor that Headmaster Dumbledore mentioned at the opening banquet. It's a restricted area. So what's in there?"

Is this your main focus?

The four boys all looked at Hermione.

Hermione blushed slightly; after all, she was also a Gryffindor, and naturally possessed a spirit of courageous adventure.

Only then did Lin Yu release his grip. He wasn't doing it to take advantage of her, but to stop Hermione from entering the room, to escape himself, and to make room for Harry and Ron.

"Don't even mention it," Ron said with a look of horror. "There's a huge thing in there, it looks like Cerberus? Good heavens, we were going to be eaten if we were any slower."

Harry nodded in deep agreement, then said thoughtfully, "But Ron, Lin Yu, did you see what looks like a door at the feet of that three-headed dog?"

Lin Yu's heart skipped a beat, and he immediately thought of something: the Philosopher's Stone. There was no other reason. But he still pretended to be thinking and said, "It seems to be guarding something."

Having received Lin Yu's almost explicit reminder, Harry also began to ponder.

It seems he made a connection to something.

After all, Hagrid retrieved the Philosopher's Stone from Gringotts right in front of Harry.

"Can we go back now?" Hermione, ignoring what they were thinking, simply reminded everyone, "We'd better hurry back before Filch finds us."

This time, no one objected to Hermione's words.

They returned to the prize display room by the same route, and then took the stairs back to the entrance to the Gryffindor common room on the eighth floor.

Filch may have given up, or he may have gone elsewhere to look for them.

In short, after giving the command, the fat lady, who had returned, opened the door for them. The children climbed into the lounge one by one, and tonight's adventure finally came to an end.

"Hermione, goodnight," Lin Yu said to Hermione.

After all, this girl risked being punished, all for him.

Hermione looked at Lin Yu, her expression complex, and said, "Goodnight to you too."

Then she went up the stairs alone and returned to the girls' dormitory to rest.

The boys exchanged glances and then climbed the stairs to go back to sleep.

After they changed back into their pajamas and lay down, Harry suddenly whispered to Lin Yu, "Lin Yu, are you asleep?"

"It depends on what you want to say. If it's not something important, then I'll go to sleep," Lin Yu replied casually.

Ron chuckled softly, while Neville was already snoring in bed.

Harry was silent for a moment, seemingly speechless, but he still said, "Remember my birthday, when we went to Diagon Alley to buy me things? Hagrid took something out of a vault, and he was doing Dumbledore a favor. He even said, 'If you want to hide something, Gringotts is the safest place in the world, except Hogwarts.' I think I know where that thing is."

Lin Yu had already guessed it, but he was curious whether Harry knew about the existence of the Philosopher's Stone with the limited clues he had.

So Lin Yu tentatively asked, "What do you want to say?"

Harry continued, "What could be so important that it needs to be stored separately in one of Gringotts' vaults, and then brought back to Hogwarts to be guarded by those monsters? And Ron, do you remember what you mentioned before about the Gringotts theft? I suspect that's related to that too."

Upon hearing this, Lin Yu felt goosebumps rise on his skin.

For the eleven years prior to this, Harry Potter's childhood was far from happy.

How could such a child come up with so many things?

He is really smart.

Lin Yu thought to himself, "If I didn't know the plot, I wouldn't have been able to come up with so many things even if I racked my brains."