This is what Ravenclaw looks like.

Good sleep can be transferred to each other. Just when Andrew fell asleep happily, Professor McGonagall, who was preparing to sort out the files one last time before going to bed so that he could deal with them according to their priority the next day, couldn't sleep.

When she habitually opened the document and prepared to read the last sentence to decide the processing level, only three lines of text fell into her eyes, and then she froze there.

She knew every word, but why were they all so unfamiliar?

Having been the vice-principal of Hogwarts for a long time, Professor McGonagall has plans for all emergencies - she can handle even a difficult principal like Dumbledore very well. Is there anything else difficult?

Hello, some...

The letter told her so.

She personally designed the protective mechanism of the Philosopher's Stone, and also knew that Dumbledore had recently obtained a magical mirror and planned to use it to store the Philosopher's Stone.

But this kind of thing…

Check the content again and be blown away again.

So, less than ten minutes later, Dumbledore, who was wearing pajamas and sleepy eyes, was arrested.

"Did something happen to the students?"

Dumbledore immediately asked the first question with concern.

"As usual, I worked hard at night and deducted points from my own academy."

"Oh," Dumbledore's nervous expression suddenly relaxed, "then, what else needs to be done to wake up a poor old man in the middle of the night?"

The letter was delivered quickly. Dumbledore glanced at it casually, then his face was full of shock.

"Where did this letter come from, Minerva?"

"It was sent mixed in with the teacher's letter. At the time, I thought some naughty guy mixed it up while copying in the office, but now it seems that it was sent by the school owl borrowing the school communication."

"Go find the messenger, Minerva."

"Phineas, please inform Severus that I need his help."

++++

"The back of the head?"

Looking at the words on the letter, Snape, who was hurriedly called over, curled up his lips and said, "What a good place - we have been looking for him for so long, just because we were worried about catching Quirrell and letting him run away, but... he just... Hiding in that conspicuous place?”

"It's possible, but I'm not sure."

"Not sure? He even mentioned the mirror, the imperfect trap!"

"It's just because it's not perfect," Dumbledore said calmly. "The other party has some information, which is obviously not very accurate, and - I'm not sure whether he will escape again. The Mirror of Erised is the cage that can hold him stably. ”

"No, you, me, McGonagall, Flitwick, the four of us can work together."

"Minerva can't, she can't appear on the battlefield of direct confrontation, she is hope - if we can't win anyway."

"Well, I hope," Snape said with a trace of sarcasm on his face, but quickly put it away, "we three can do it too."

"You can't do it either, you are the last guarantee."

"It won't work this way, that won't work either... Do you want to wait for it to die on its own?"

"You're panicking, Severus - you should know that we need to plan carefully, not take reckless risks."

"Do nothing? Then what's the point of this letter and this information?"

"It is of great significance. It can tell us what the previous contradictions were, and an unknown ally who can help us."

"An ally who is disappointed in you, and someone who might slip away."

Snape finally calmed down at this moment, "The possibility of catching him in the trap is just our guess, but what about the chance that he will notice something is wrong and run away? Especially - how did our unknown allies observe it?"

"It's a problem and Minerva is looking into it."

The conversation was suspended for a while - but Professor McGonagall's investigation soon yielded results.

There was only a portrait that showed the rough back of the person in the owl's description, and as far as she knew, there were no students like that in Hogwarts.

"Okay, thank you, Minerva, go to bed. It seems that the other party is unwilling to expose herself."

After persuading Professor McGonagall, Dumbledore sat down at the table again and began to study the letter carefully.

"It can't be delayed any longer - no matter what observation method he uses, it will leave traces. Once discovered, everything will be empty."

"You go back and rest first, Severus. I'm afraid I need to find some friends."

"No," Dumbledore suddenly changed his mind, "You just guard the Gryffindor common room and the points will be deducted - don't let anyone slip out."

The current Gryffindor students were sold out by their own graduates.

++++

Mad-Eye, who should have been sleeping soundly, suddenly opened his eyes - he swore that he had just heard a slight noise, but the device that was supposed to warn him did not work at all.

He calmly picked up the wand, then rolled it violently, aiming the wand directly at the window that was most vulnerable to intrusion - if the other party really planned to do this, he would not hesitate to reward the other party with a harsh blow.

However, what came was the doorbell.

That sharp voice seemed to be the best mockery of his alert state at this moment.

"who?"

he shouted, immediately changing positions.

"Your friend Albus, my man."

A voice that definitely shouldn't have sounded in the middle of the night made Moody, who was well-informed, stunned for a moment - it was this voice, this tone, yes.

With a wave of his wand, he shifted his position and pointed his wand firmly at the door.

"Ah, the door is open. Let me assume that this is you inviting me in."

Dumbledore's cheerful voice sounded - this confirmed to Mad-Eye that indeed only Dumbledore would say such shameless words.

"Let's see the time, Albus…"

He tapped his wooden leg against the floor to express his displeasure.

"The time is now - oh my God, two o'clock in the morning!"

"Is there anything important that needs to be done at this time? Is there a riot in Azkaban? But it should be Fudge standing in front of me like that."

He said teasingly - as a fairly alert Auror, it was not easy for him to sleep peacefully.

"Go help me catch someone, Alastor."

"I?"

Moody stared at the other party with his intact eye, and the magic eye rolled around, but it soon turned into an ugly smile, "Okay, you did find a professional - where did the case happen? What's stolen? I'm sending him to Hogwarts within a week."

Moody swore that this was the happiest thing he had ever done since he retired. Even Dumbledore was looking for him to arrest someone. Although he had long been tired of these honors, the person was Dumbledore.

"Now, go to Hogwarts - if you can, I want you to call a few more helpers, the retired kind."

"You're kidding."

Moody's magic eye stopped moving. He stared firmly into Dumbledore's eyes. After realizing that the other party didn't have any joking expression, the wound on his face twisted as if it had just been stitched.

"That was awesome."