Sherlock Holmes at Hogwarts.

Chapter 53 Revenge
In the principal's office, Sherlock calmly analyzed the case.

"Secondly, that line of bloody words was left by Professor Quirrell.

Third, everything Professor Quirrell did was instructed by someone else."

Silence, long silence.

"Where's the evidence?"

Dumbledore spoke, his eyes full of curiosity, "Based on what happened that night?"

“When you have eliminated the impossible, whatever remains, no matter how implausible, is the truth.”

Sherlock said quickly in his usual calm tone:
"No matter how much he is looked down upon, Quirrell is the professor of Defense Against the Dark Arts.

Being frightened by a troll is bad enough, but running all the way from the dungeon to the hall and telling you what he wanted to say before fainting is just a poor performance."

Dumbledore smiled and said, "Minerva once told me that you have amazing analytical and reasoning abilities, and now it seems to be true.

That night, you made some inferences about the person who left the blood words. Can you tell me how you knew this?"

After that night, McGonagall went to find Dumbledore and told him Sherlock's deduction.

The person who left the bloody words was a middle-aged man less than six feet tall. He was right-handed and used a wand about nine inches long. He was agile and calculating. He did not do this on his own initiative, but was instructed by another person.

Long before school started, McGonagall had told Sherlock about his deduction that Hogwarts was in the Scottish Highlands.

Now that this has happened again, Dumbledore is naturally very interested in it.

"Actually, it's quite simple to deduce this: a person's height can be determined from the length of their stride. The calculation is simple, but it wouldn't be very helpful if I explained it step by step, so I'll skip it for now.

When people write in a relatively small space, they usually choose the middle position.

Judging from the traces left at the scene, with the center of the room as the reference system, the line of text was slightly biased to the right.

Combining these two points, you can infer the other person's height and dominant hand.

Since you're using a wand to write, you can also determine the length of the wand, which is child's play."

"Then how can you tell that he's agile and scheming?"

Professor McGonagall couldn't help but ask.

Compared to Dumbledore and Snape, she had seen Sherlock's abilities firsthand.

It is quite impressive that he was able to figure out that Hogwarts was in the Scottish Highlands based on just a few clues, knowing nothing about magic.

That's why she supported Sherlock in expressing his own inference that night.

"I rushed to the dungeon the moment I saw Professor Quirrell. Even then, I only just ran into Hermione before the troll. He's quite fast."

Professor Quirrell had two purposes in releasing the troll. The first was to create chaos so that he would have the opportunity to approach the corridor on the fourth floor.

I don't know what Mr. Dumbledore had Hagrid place on the fourth floor, but that was clearly Professor Quirrell's goal—and he failed."

Dumbledore and McGonagall exchanged a glance. "Did you deduce this as well?"

"Yes," Sherlock said, looking at McGonagall again, "In fact, we should all thank Professor Snape."

Dumbledore smiled.

Mag was a little surprised.

Snape deadpanned.

"While the others were searching for the troll in the chaos, it was Professor Snape who rushed directly to the fourth floor and stopped Professor Quirrell, and was bitten on the leg for doing so.

Also, that night Professor Snape stopped me from continuing my statement obviously to protect me.

Professor Snape must have thought that after hearing my analysis, Professor Quirrell would think that I had deduced that he was the one who did it..."

"Holmes!"

Snape finally couldn't bear it anymore. He said angrily, "Don't talk about irrelevant things!"

Sherlock originally wanted to talk more about Snape being bitten, but seeing the other party's angry look, he could only shrug his shoulders and give up.

"…Professor Quirrell's first goal was thwarted, so he had to settle for the next best thing and join the other professors in dealing with the troll. Of course, he didn't have to personally deal with the troll, as Professors McGonagall and Snape were more than capable of handling it.

As for the line of blood words, he had already prepared it when he released the giant monster.

This can be confirmed by both the casting time and the traces left at the scene, so I won’t say more.

When the professors return after dealing with the troll, Professor Quirrell will lead everyone there and find the traces of blood writing.

By the way, after seeing the bloody mark, Professor Quirrell's performance was still too obvious, which confirmed my suspicions about him.

"So, what does RACHE stand for? Is it the one who ordered Quirrell?"

"That's a bold guess."

Sherlock shook his head. "My friend Hermione also thought that the bloody words were originally intended to be a woman's name, Rachel, but were interrupted by other things and never finished.

But I don't think it's necessary to waste time looking for 'Miss Rachel', because 'RACHE' means 'revenge' in German.

I gather that the person who instigated Professor Quirrell has serious racist tendencies, which is why they used German to write the word for revenge.

so……"

Sherlock paused and looked at Dumbledore.

"Now, sir, can you tell me what you found out?"

As soon as these words were spoken, even Snape, who was about to mock him, was stunned.

At this moment, he and McGonagall both looked at Dumbledore.

Facing the gazes of several people, Dumbledore was stunned at first, then he laughed.

"Minerva's vision is as excellent as ever, Mr. Sherlock. You are even better than she describes."

"Albus..."

McGonagall looked at Dumbledore nervously.

"It's okay," Dumbledore waved his hand and met Sherlock's gaze. "I did find something."

Hearing Dumbledore say this, Sherlock immediately put his palms together to support his chin, staring at him with sharp eyes.

From the moment Sherlock learned that Dumbledore had summoned him, he already knew what would happen tonight.

Catching Quirrell was just the beginning.

What really matters is the person standing behind him.

It's just that the information he has is incomplete, so he needs someone like Dumbledore to further confirm it.

however.

Dumbledore suddenly turned to Snape and said, "Severus, could you please step out for a moment?"

Snape: (ー`ー)
"In that case, I won't disturb your gathering!"

Snape gritted his teeth and said, "But... Dumbledore, you have to give me an explanation!"

After saying this, he walked out of the principal's office without looking back.

"It's great to be young!"

Looking at Snape's back, Dumbledore couldn't help but sigh, then looked at McGonagall.

"Albus, me...me too?"

Mag pointed at herself, a look of disbelief on her face.

"I'm sorry, Minerva," Dumbledore looked at Professor McGonagall, still smiling, "Please believe me."

Mag: Σ(｀д′*ノ)ノ

(End of this chapter)