Everyone left the room.

Only Sirius, Lupin and Snape stayed in the office, looking at Petrite Peter for a moment.

Foggy pulled William and said enthusiastically: "William, I'll go to the principal's office first. Let's talk about our affairs later."

"Okay, Mr. Minister." William smiled politely.

Dumbledore, Forge and Professor McGonagall walked towards the principal's office, followed by two Aurors.

"Where are you going?" William asked.

"We're going back to the Gryffindor lounge," Harry said.

“It’s too much impact on me tonight, and I need a good night’s sleep.”

Ron nodded.

"Where are you? Annie, are you going back together?"

"No, it's still early! Luna is waiting for me in the Ravenclaw lounge, I'll go find her." Annie said quickly.

William thought about it but did not object.

After getting her brother's permission, she jumped and walked towards the corridor on the other side.

"We both go back first," Harry asked, "Hermione, are you going back to the common room?"

Hermione shook her head and whispered: "I have something to do, you guys go first."

Harry and Ron shrugged and turned and left.

William looked at the backs of the two and suddenly asked, "Ron, are your tonics still there?"

"Well, no... is gone, what's wrong?" Ron was stunned for a moment, turned around and stuttered.

"Bobo Tea is sick, that tonic should be useful for it." William narrowed his eyes and said, "Have you used it? When did you use it?"

"Yes, I'll use it for Banban just a few days after school started." Ron said quickly.

"Of course, I didn't expect that he would be Peter... and just poison him!"

"Well, forget it, I'll buy another bottle." William nodded thoughtfully.

The two turned and left, while William and Hermione slowly walked in the corridor.

"Is Bobocha sick?" Hermione looked at William suspiciously.

"In the afternoon, it was still lively and playing in the garden with Mrs. Loris."

"I'm not sick...I said casually." William whispered.

"Why are you lying to Ron... By the way, are you going to the House of Responsibles now?"

Hermione stretched and smiled:

"I finally caught Peter... I suddenly felt much easier. We both could change the papers for a night, and no one disturbed me!"

"Maybe I can't go tonight." William shook his head, frowned, and was thinking about things carefully.

Hermione looked at William, stretched out her fingers, rubbed him and frowned.

She asked softly, "What's wrong?"

William looked into Hermione's eyes and said slowly:

"Well, there are some things I'm thinking about... I always feel like I've overlooked something, and I need you to analyze it for me."

Hermione nodded, and the two of them snuggled up to the window and looked at the sky.

Outside the castle, a full moon was gradually blocked by thick clouds.

"I just said that Bobocha is sick and I was deliberately borrowing that bottle of tonic." William whispered.

"But Ron said that he used it a few days after school started."

William shook his head: "This is impossible. If Ron uses it, I will definitely know!"

"Why?" Hermione's eyes widened.

"Well... Last summer vacation, George and Fred put some ecstasy agents in the tonic."

“…”

"No malicious!" William grinned and said, "I just want to test whether the ecstasy agent is useful between animals.

Pure magic experiment.”

Hermione gave William a small look.

"Okay, don't care about these details... but fortunately the twins were drugged.

If Ron gave Banban, that is, Peter... he would definitely be impatient and look for Fred's sniff.

Fred had prepared the bed for them both.

But never."

"But..." Hermione hesitated with her chin.

"Does sniffing hair work? I mean, sniffing hair may not work for the wizard?"

"No, it will definitely work! Remember last year?"

Hermione thought for a second, then she said quickly: "Lordhart?!"

"That's right!"

William was very happy that Hermione could immediately keep up with his thoughts.

Among the girls he knew, Hermione was probably the only one who could keep up with his ideas.

It’s really easy to have such a smart girl around you.

If you follow fools like Harley and Roen, an obvious thing will take a long time to explain.

William killed their hearts.

Thinking like this, William kept his mouth shut and said quickly:

"After that Christmas, Lockhart took Snape's ecstasy agent and dwarf hair was added to it."

"Strictly speaking, dwarves, horsemen, werewolfs are all magical creatures, just like sniffing.

Peter will definitely react if he takes the romance agent."

"So, I conclude that Ron didn't give Peter."

"But there is one problem, William." Hermione said keenly.

"How do we determine whether it was Spotted or Peter at that time?

We all know that Peter found a very similar mouse as a substitute.

Is it useful to wizards with magical animal hair? Is it also useful to real ordinary mice?"

"Your doubt is right, I was thinking about this just now." William praised: "We can only boldly analyze this."

"Look, Peter had no reason, and suddenly found a mouse as a spare tire, so he hid himself?"

"He is not sure whether Sirius' target after escape from prison is him.

Peter would think, he had been hiding for twelve years, and no one found it.

Black is locked in Azkaban, how could he know where he is?

And Hogwarts is the safest place and there is no need to escape at all."

William photographed the window. “If I were Peter, I would definitely wait and see for a while.

The Halloween attack probably made him completely sure that Sirius was coming to him!

I also woke him up, the school was not as safe as I imagined."

William looked at the thick clouds that completely covered the full moon, and his thoughts became clearer and clearer.

He quickly said:

"After that, Peter probably had the idea of ​​running away. Or, Tom had a detailed plan.

My tendency is the second possibility!”

Without much detailed evidence, William can confirm that just by relying on his meticulous style of doing things:

Behind Peter, Tom must have given advice.

If Peter was so smart, he wouldn't have to defect and live safely alone.

"A very reasonable analysis." Hermione thought about it and found no loopholes.

"So...Ron is lying?" Her eyebrows raised, "Why lie?"

"This is probably not his first lie tonight." William was worried.

"Did you notice, Ron said Peter wanted to steal their wand..."
To be continued...