It's William's voice!

How did he end up here?

Inside the cubicle, Harry and the others looked at each other in disbelief, they never expected that William would appear here so suddenly.

"What are you three crammed into the toilet?" Outside the cubicle, William continued to tease Harry.

He had just slipped into the girls' bathroom with the illusion charm and silencer charm when he heard Weasley secretly saying bad things about himself somewhere in the cubicle.

Hermione, who found that she couldn't hide, opened the wooden door of the cubicle little by little, while Ron and Harry hurriedly stood behind Hermione, trying to block the crucible on the toilet with their bodies.

"We didn't do anything, William, what are you doing here, isn't this a women's bathroom?" Harry stiffly shifted the subject.

"You can all come in, what can't I do?" William looked at the Harry trio in the cubicle with some amusement, didn't they know that the heat from the cauldron was constantly coming out of their heads?

You've put out the fire first!

"I came to find Myrtle, I didn't expect you to be here, what are you doing, are you cooking?"

"No, we're just putting together a little bit of stuff to be used in Potions class, about the homework Snape left behind." Hermione forced herself to say that even Terry wouldn't believe.

"I didn't know that Professor Snape would still leave an assignment on Polyjuice Potion, which is not something a second-year wizard should configure." Seeing Hermione, who was still hard-mouthed, William directly said the key word, compound decoction.

It's over! He's got it all!

Hermione turned her head with a dead face, and gave Harry and Ron a helpless look.

The little witch's worst fear has happened, and if the professors knew about it, they would definitely be expelled!

"How do you eavesdrop on other people's conversations!" Thinking of this, Hermione couldn't help but get annoyed.

"Also, when the hell did you come here and walk without a sound?"

"Phantom spell and silencer spell, I don't want to just walk into the women's toilet so openly, it's very bad for my image."

"Go far! Friedrich! There's nothing for you here! Ron scolded angrily.

"A bit of a brain, Weasley. Do you really want me to turn away? Then I'm going to go to Professor McGonagall and set up the Ministry of Magic's potions, what kind of punishment do you think you'll get? Not caring about Ron's attitude, William said to himself.

He looked at Hermione and Harry's gradually pale faces, and he couldn't help but feel a little dark in his heart, it really felt good to scare people.

"I reckon you three will be the youngest students to be expelled from Hogwarts since its founding, and that's if the Ministry of Magic doesn't bother you. If the Ministry of Magic doesn't let you go, then Azkaban will welcome you.

Poor Mrs. Weasley is losing her youngest son, and Mrs. Granger will probably die of grief if she learns that her daughter is in a wizard's prison. ”

With that, William turned around and pretended to turn away. He wasn't at all afraid of being attacked by a few people, and with the current trio, William estimated that he could clean them up with one hand.

"Don't go, Friedrich!" Harry hurriedly grabbed Ron, who was starting to lose his mind again, and then called out to William, who was about to turn away.

"What exactly do you want? You've not been talking to us about it because you're trying to tell Professor McGonagall about us! ”

"Of course, if it hadn't happened to bump into it, I wouldn't have the heart to care about your. It was just to scare you, but of course, if you were in the same way as Weasley, then I'd be sure to tell Professor McGonagall. ”

Hearing this, Harry and Hermione couldn't help but breathe a sigh of relief, what they were most afraid of was that this matter would be discovered by the professors, since William said that he would not tell the professor, then it should be true.

"So are you admitting it? Are you preparing a polyjuice decoction? ”

"That's right, we're concocting this potion." Hermione said helplessly, since it has been discovered by William, it is better to admit it generously.

Anyway, looking at what he meant, he didn't seem to want to denounce himself.

"How much have you heard about our plans?"

"I'm not interested in your childish adventures, I just want to know one thing, where did you get the recipe for the Polyjuice Potion?"

"We got a slip from Professor Lockhart, and then borrowed a Potions book from the library's forbidden section." Hermione's voice grew quieter, after all, it wasn't something too glorious.

"So you borrowed a book from the library's forbidden section so easily?" William couldn't help but be a little speechless, it was not a loss that he was Lao Deng's favorite student, and when he tried his best to sneak into the forbidden book area, Harry and the others actually took away a collection of books with such a swagger.

"It's not that difficult." Harry asked, a little strangely, he had always felt that Dumbledore had been unaware of everything he had done.

This silly boy.

"Where's that book?" William continued to ask the trio.

"What do you want to do?" Harry snapped into his senses.

"Since I've bumped into your good deeds, I need to borrow this book briefly as compensation for not being like Professor McGonagall for denunciating your behavior." William spoke his claim.

As a qualified Ravenclaw, he is naturally very curious about those unknown knowledge, and William is naturally very eager for the books in the forbidden area.

"What do you want this book for, it's full of dangerous potions." Hermione asked, a little curiously.

"Of course, I want to take a look, and I have a long insight. I don't think you can flip through any books you can read, and I'll have any problems flipping through them. ”

"But in that case, how should we configure our potions?"

"It's simple, I'll copy you the process of preparing the polyjuice decoction intact, how about it, wouldn't it be worth it to trade a book that is useless to you in exchange for my silence about your adventure?" William continued to fool Harry and the others.

Harry didn't know that Dumbledore already knew about their small movements, which is why they were so nervous and scared, and this just gave William a chance.

A chance to learn about books in the Forbidden Zone.