Sherlock Holmes at Hogwarts.

Chapter 337 Teacher Mai, please don't do this
After Peter Pettigrew attempted to take Harry hostage but was stopped by Professor Snape, Headmaster Dumbledore's expression gradually became serious and stern.

Sherlock was alright, but Harry, Hermione, and Ron completely understood at that moment why people said Dumbledore was the only person Voldemort feared.

At this moment, Dumbledore's expression was so terrifying that it completely exceeded their expectations.

Even when Harry fell off his flying broom during the last Quidditch match because of the Dementors, he wasn't this upset.

Gone was the kind smile, and the spark of joy had vanished from the eyes behind the glasses.

Every wrinkle on that aged face carried a chilling rage.

The old principal radiated a power from his body, as if he were burning with heat.

“Sherlock, I believe you can get the truth out of him—but I don’t think we need to waste any more time.”

Peter's behavior revealed his guilty conscience and enraged Dumbledore, who then resolved to take direct action against him.

He looked at Professor Snape as he spoke:
"Severus, could you please fetch the truth serum?"

Snape was somewhat surprised to hear this, not expecting Dumbledore to suggest using this method to pry Peter open his mouth.

He said in a deep voice, "I have it with me right now."

Dumbledore's terrifying expression softened somewhat: "Very well, it seems you anticipated this would happen."

Snape gave Sherlock a complicated look, snorted, and stepped forward.

Lupin took two steps forward, bent down, dragged Peter up from the ground, and pressed him directly into a chair.

Snape slowly took a small crystal bottle from his pocket.

The bottle contained a clear, transparent liquid, which, to the young wizards, looked no different from water.

"This is Truth Potion—a drug that teaches you to tell the truth."

Snape glared at Peter and said, "I think you know very well what it does. Just a few drops will reveal even the Dark Lord's deepest secrets."

"No, don't feed me this! Snape, I'll tell you, I'll tell you everything!"

Peter immediately began to struggle violently, twisting his body and shouting at Professor Lupin, who was holding him down:
"Remus, please don't do this, please don't do this, my friend!"

"From the moment you tried to hurt them, I will never believe a single word you say again!"

Lupin's face showed disgust and anger. He waved his wand, and several ropes flew out of the wand and wrapped around Peter Pettigrew, binding him tightly.

He then pried open Peter's mouth.

Without saying a word, Snape poured the entire bottle down his throat.

The young wizards were startled by Snape's rough manner.

There must be some personal grudge involved.

“Severus, you’re being a bit too rough.”

Professor McGonagall frowned as she watched this scene.

It was clearly stated that only a few drops would be enough, but the whole bottle was poured down instead, which is a bit of an exaggeration.

Hearing McGonagall's words, Snape removed the bottle and glanced at it, making sure there wasn't a drop left, before saying:

“You’re right, Minerva, it’s a waste to deal with such an idiot.”

Then why were you force-feeding medicine like that just now?
Professor McGonagall glanced at Snape with a hint of helplessness.

She was well aware of the old story between Snape and Peter Pettigrew, and understood his reasons for doing so, but it was really inappropriate to say such things in front of the young wizards.

Peter was already coughing repeatedly from Snape's brutal behavior.

However, his eyes soon became increasingly unfocused under the influence of the drug.

After a while, he looked completely lifeless.

At the same time, the constantly rotating miniature endoscope stopped rotating and ceased to emit light and sound.

Does taking truth serum mean that the person who was previously suspicious is now trustworthy?

Sherlock had an idea, and immediately stuffed it back into the sock and put it back in his pocket.

Noticing his movement, Hermione's eyes flickered, and she blinked.

At this moment, Dumbledore had already squatted down in front of Peter, face to face, and asked, "Can you hear me?"

"can hear."

Peter looked at Dumbledore and said in a low voice.

His voice was no longer as sharp and piercing as before; instead, it had become somewhat deep.

Dumbledore gave Sherlock a deep look, then slowly said:

“Very well, I want you to tell us how you escaped death and why you are here.”

Harry and Ron both clenched their fists.

Peter Pettigrew took a deep breath, his voice trembling, and then began to speak in a flat, emotionless tone:

"Twelve years ago, Sirius Black trapped me in a crowded street corner."

I knew I had nowhere else to go, so I shouted loudly so everyone on the street could hear that he had betrayed James and Lily.

Before he could react, I used the magic wand hidden behind my back to create an explosion.

He deliberately cut off one of his right fingers, killed everyone within twenty feet of him, and then transformed himself and crawled into the sewer with the other rats.

In order not to lose touch with the magical world, I found a suitable family and became the pet of one of their children.

Three years ago, I was given to Ron Weasley and was lucky enough to live with Harry Potter.

But I didn't expect that the student named Holmes who lived with them was very capable; he was able to deduce the truth from some subtle actions.

For the past three years, I've been worried about giving myself away, so I haven't done anything.

Everyone turned to look at Sherlock.

The latter made a helpless shrug.

┑(￣Д￣)┍

Blame me?
"But I never expected that Sirius Black would be able to escape from Azkaban."

I knew he must have recognized me to break out of prison, so I was on edge, afraid that he would come looking for me.

What I didn't expect was that the little girl's cat, who was with them, also saw through my disguise and attacked me at the first opportunity.

"Why are you afraid that Sirius will come looking for you?" Dumbledore continued calmly.

"Because...because..."

He hesitated for a long time, but just couldn't bring himself to say it.

"His subconscious is preventing him from telling the truth."

Snape sneered, "He can still struggle after drinking the Truth Potion; I underestimated him."

Peter's actions made Snape's decision to gulp down the entire bottle of Truth Potion seem much more reasonable.

“Severus…”

"Don't worry, Lupin."

Snape coldly interrupted Professor Lupin, who was about to speak, "I just said that even the Dark Lord will reveal the secrets deep within his heart."

As it turned out, Snape was not exaggerating.

The powerful effects of the truth serum eventually led Peter to tell the truth:

"Because Sirius was the only one who knew that James had replaced the Secret Service with me."

"what?!"

Despite having been surprised enough times today, the four professors and three students were still stunned once again when Peter said those words.

The shock on their faces was beyond words.

Sherlock remained unmoved, merely raising an eyebrow and softly uttering an "Oh."

"Potter... he actually changed the Secret Keeper to Peter?" Professor McGonagall looked at Peter Pettigrew in front of her, hardly believing what she had just heard.

Peter thought Professor McGonagall was talking to him, so he continued in a completely emotionless voice:

"Yes, because Sirius considers me to be just as good a friend as him as James, but compared to Sirius, I am less noticeable and less likely to attract the attention of that person who can't even say his name and the other Death Eaters."

James and Lily followed Sirius's advice and, at the last minute, replaced Sirius with me as the Secret Keeper.

"And then you told Voldemort where James and Lily were?"

Professor McGonagall asked, at that moment she looked exactly like an angry lioness, her gaze towards Peter filled with a desire to devour him.

"Yes, I told that person, who can't even mention names, where James and Lily live."

Harry clenched his fists, his green eyes practically spitting fire, and Hermione and Ron quickly grabbed his arms on either side.

However, some people were faster and more aggressive than Harry.

"Snapped!"

A crisp sound rang out, and Professor McGonagall, unable to contain her anger any longer, slapped Peter hard across the face.

That wasn't enough; she raised her hand high again and slapped him across the face with her other hand.

"Clap! Clap! Clap!"

The crisp, loud sounds rang out in succession. Professor McGonagall was so angry that her chest heaved, while Peter was beaten until his mouth was full of blood and he was searching for his teeth on the ground.

Seeing that Professor McGonagall was still not satisfied and was about to attack again, Professor Lupin quickly stepped in to stop her:

"Minerva, don't do this, don't do this...Minerva!"

"Let me go, Remus!"

Professor McGonagall struggled and said angrily:

“We suspected many people at the time, Fenwick, Dearburn, Meadows, Vance, but we never suspected him!”
"Lily and James, Pettigrew, how could you do this? How could you do this—!"

At this moment, Professor McGonagall, who was roaring incessantly, possessed extraordinary strength, and even the somewhat emaciated Professor Lupin could not completely control her.

"Minerva, calm down. Anger will make you lose your mind."

Just then, Dumbledore spoke.

He gently waved his wand, and somehow the strength of Professor McGonagall's struggle immediately lessened, allowing Professor Lupin to finally pull her aside.

“I’m sorry, Remus,” Professor McGonagall took a deep breath and then stopped struggling. “I was too impulsive just now.”

Professor Lupin released Professor McGonagall, and although his voice was calm, no one doubted the truth of his words at that moment.

“Minerva, I hate him more than you do, I even wish I could kill him—but things aren’t clear yet, and he doesn’t deserve to dirty your hands.”

McGonagall took a deep breath and sat back down.

"A clever trick of his own making."

After a brief silence, Sherlock spoke, though it was unclear whether he was referring to Sirius or Peter.

He slowly walked up to Peter Pettigrew, looked at Dumbledore, and said, "Sir, may I ask him a few questions?"

"of course."

Dumbledore sighed deeply and stepped aside. "You were able to capture him this time entirely because of you. It's your right."

"Thank you."

Sherlock spoke politely, then looked down at Peter, his gaze suddenly sharpening:
"Were you already passing information to Voldemort before Lily and James were killed? Was that spy in the Order of the Phoenix... you?"

"it's me."

Despite being under the influence of Truth Potion, Peter Pettigrew still shuddered when Sherlock mentioned Voldemort's name.

After being hit by Professor McGonagall, he spoke somewhat unclearly, but if everyone paid close attention, they could still hear him clearly.

Why did you betray the organization?

"That person, whose name can't even be mentioned, is gaining power everywhere. I never expected him to find me."

He was too powerful, so powerful that I couldn't muster even the slightest will to resist.

So I became his spy for the Order of the Phoenix, delivering intelligence to him for a year.

"When did you start working for Voldemort?"

"1980."

"You've been in our dorm for three whole years, why didn't you hurt Harry?"

"The person whose name cannot even be mentioned has disappeared. Everyone says he is half-dead, but I don't know anything about his condition."

I am unwilling to kill someone under Dumbledore's nose for a wizard who may be crippled or lose power.

Also, your observation skills are too sharp; if you make any rash move, you'll spot the flaw.

"Heh, you're quite adept at judging the situation—so when do you plan to make your move?"

"When I was certain that he had regained his dominance in the magical world, I took action unexpectedly."

By then, no one will say I betrayed my master. As long as I hand Potter over to him, I will be welcomed as a hero…”

"Pooh--!"

This time, Hermione couldn't help but speak up, expressing strong disdain for Peter Pettigrew's behavior.

While Snape looked disdainful, his expression towards Lupin held a hint of schadenfreude.

Lupin was both angry and ashamed.

I, Remus Lupin, a fine man, am utterly disgraced to be associated with such a despicable person!

Next, Sherlock asked Peter many more questions.

This was the most cooperative criminal Sherlock knew.

Under the influence of truth serum, Peter truly became open and honest, saying everything he knew without reservation.

However, for Sherlock, most questions were about verifying his own deductions, rather than simply seeking answers.

That's why, as the questions went on, the tone of the conversation became rather strange.

"Insect tail...is that you?"

"it's me."

Who are the moon-faced one, the big-footed one, and the pointed-fork one?

"Remus, Sirius, James."

Harry and Lupin's eyes widened immediately.

Are all four of you Animagus?

“Only the three of us are, Remus isn’t, he’s a werewolf.”

Ron's eyes widened as well.

"Who else is a traitor to the Order of the Phoenix?"

"Severus Snape."

This time, everyone stared wide-eyed.

Snape, in particular, looked at Sherlock as if he wanted to devour him.

　The plot has recently reached a crucial point. Originally, each chapter was 3,000 words, but these past two days I've been trying my best to write 4,000 words, because I know everyone is getting impatient, so I'm trying my best to make your reading experience more enjoyable.

　　However, as a part-time writer, I can only write during my off-get off work hours. While writing, I have to constantly think about how to write the details well: Sherlock's reasoning, Harry's choices, the interaction between the male and female protagonists, the description of group scenes, and I also have to ensure that each character is not out of character. While ensuring updates, each chapter has to be revised several times.

　　But time was limited, and all we could say was that we had done our best. The plot will be more intense in the coming episodes, and Peter's fate and Sirius's secret will be revealed.

　　I've just rambled on for a bit, but anyway—thank you all for your support. Every time I see your comments and requests for more updates, I feel that all the hard work is worth it, and that's what motivates me to keep updating.

　　
　
(End of this chapter)