Short and tiny.

But it clung to the flesh and could not escape Harry's perception.

"It's you all along." Harry laughed, but his eyes were cold. He turned to look at Lupin, "Professor, turn him back into a human."

Lupin extended his wand and pointed it at him.

A blue light gushed out and wrapped around the mouse. Immediately, a brilliant flash of light burst out from its body, twisting and expanding. With a "pop", a human head emerged from the tiny torso, followed by the limbs and finally the body.

He was very short, even shorter than Harry is now.

A very British hairstyle, with hair as thin as Ron's wallet and several bald spots, and loose, wrinkled skin covered with dirt - some new and some accumulated over the years.

Her nose was very pointy, with a cone-shaped ornament forcibly inserted into it, resting on the bridge of her nose. Her light brown eyes were slyly rolling around.

After thirteen years of being a pet, he was almost assimilated into a mouse.

Bend your waist and slouch your back, and clasp your hands in front of your chest.

Timid and shifty.

"Hi, Remus, my dearest friend, long time no see." Peter shrank his head and spoke in a sharp voice, pretending to be enthusiastic, which was false without any need to distinguish. "And Harry!"

"My best friend's child, I have been watching you grow up over the years. You are outstanding, even better than your father and mother."

Harry looked at him.

I feel sick inside.

"Peter," Lupin said, looking at him coldly, alertly not putting down his wand, "Long time no see. I didn't expect you to be like this all these years..."

Peter spoke in panic, defending himself: "I'm just scared. I know he will come back to find me! Just like now!"

"Did you know Sirius would escape from Azkaban?" Lupin demanded.

Peter said anxiously, almost biting his tongue: "Of course, he can be Animagus, and so can I. Of course I know he can."

"Besides, he is Hei... He is the lackey of that mysterious man. Maybe the mysterious man has taught him some powerful spells."

Lupin opened his mouth and was about to continue asking.

Harry waved his hand and interrupted him: "Professor, there is no need to waste time like this."

Lupin was stunned.

"Axil!"

Harry made a magic seal.

"Who revealed the address of Potter's old house to Voldemort?" Harry asked the most crucial question in a hurried tone.

Peter was in a daze, his eyes were wide open, and he even subconsciously bit his tail and spun around like a mouse: "It's me."

Lupin's eyes widened and he gripped his wand tighter.

"When did you become Voldemort's lackey?" Peter's brain seemed to have been assimilated into that of a rat. He had been affected by the sign longer than Malfoy. Harry continued to ask.

Peter confessed honestly: "A year after graduation."

"One year?" Lupin raised his voice. "You've been You-Know-Who's lackey for a whole year?"

Peter's voice was numb: "James and Sirius have always looked down on me."

"When did they ever consider me a friend?"

Lupin looked a little uneasy and turned his head away.

Harry noticed.

Peter came back to his senses, regained consciousness from the influence of the Axis Sign, and looked at Harry in panic: "You...what did you do to me?"

"I asked some questions that I was concerned about." Harry had a blank expression on his face. The amulet under his clothes vibrated violently. "I confirmed some things I wanted to know."

Peter looked at Lupin, his tone full of bewitching, but he was trembling and stammering, not very confident: "Remus, my dear Remus, we are the same, aren't we?"

"Potter and Black have always looked down on us!"

"You're a werewolf, you're a werewolf!"

As he said this, he glanced at Harry several times.

"They have always distrusted you because of your identity. They excluded you from the first place when selecting the secret keeper. They didn't even let you live in the Potter mansion for long."

Lupin glared at him in disgust, said nothing, pointed his wand at him, and took two steps back.

Peter took a deep breath.

Knowing that he couldn't convince Lupin, he rushed towards Harry.

Subconscious, really just subconscious.

Harry turned sideways and put his foot on Peter's back again, pinning him down.

"Harry, Harry!" Peter struggled, ignoring the pain. "I'm your father's friend and your best friend Ron's pet."

"I was just confused for a moment."

"I really didn't. I didn't want to, and I didn't hurt you."

"Look at me. I have been in the Weasley family for thirteen years and have never hurt anyone. Even last year when the Dark Lord, I mean, the You-Know-Who broke into Hogwarts, I didn't come forward to help him!"

"Really, it's all true, Harry, and your father will surely forgive me."

Harry had a blank expression on his face. He stepped hard on Peter, causing him to wail in pain.

"Yes, you have been very well behaved in the past thirteen years and have not hurt anyone else." Harry said softly.

Peter held back his cry of pain, as if grasping at a glimmer of hope.

Harry pulled out the amulet, and it vibrated violently like a motor. "But you still have ill will towards me, but you dare not show it openly."

Peter held his breath. The vibration of the amulet began to slow down, but it did not disappear completely.

"Now you can't even hide your malice." Harry sneered, "Peter, do you think that after hiding your identity for thirteen years, you can write off the mistakes you made?"

"You haven't hurt anyone yet."

"What does this have to do with you killing my parents thirteen years ago?"

Peter was still struggling: "James will definitely, definitely, definitely forgive me."

"So what?" Harry stepped on him, his tone cold, "He is him, and I am me."

"He may be confused and will forgive you."

"But I'm wide awake now."

He loosened his feet and waved his wand. Peter flew up and a rat face appeared before his eyes. Harry reached out and pinched Peter's cheeks to open his mouth.

With his other hand he reached into the Sorting Hat, pulled out a bottle of potion, and poured it stiffly into his mouth.

"No, Harry, not yet!" Lupin was a step slower and grabbed Harry's arm, but he didn't expect a thirteen-year-old wizard to be so strong, and he was the one who was pulled and staggered.

"It's not poison, it's water of life and death." Harry threw Peter to the ground.

The mouse twitched, struggled a few times, and then fell asleep.

Lupin checked his breath and found that he was still healthy, which made him breathe a sigh of relief.

"I know I have to keep him to exonerate Sirius Black." Harry stuffed the bottle back into the Sorting Hat, his tone and expression sounding a little depressed.

Lupin patted his shoulder: "It's all over, Harry, at least it's all..."

Harry shook his head: "No need to comfort me."

"I was just thinking about a question."

Lupin listened patiently. He didn't have much experience in comforting people, but he knew that at times like this, it was best to be a listener.

"Is Sirius really that stupid?" Harry sighed. "He would rather spend thirteen years in Azkaban than open his mouth and speak out his words?"

Lupin was startled.

He was a little dumbfounded, and his raised hand froze in mid-air, at a loss as to what to do.

This kind of atmosphere, this situation, and the emotions have all been laid out to this point, and I’m actually thinking about this kind of thing in my mind.

"Sirius, he does, um... you know." Lupin stuttered and could only throw out this sentence.

"I'm really worried," Harry said, though there was no sign of worry on his face. "Sirius's head is completely empty. Even a troll might be smarter than him."

"Peter is pretty stupid."

"Your performance today is somewhat..."

Lupin gritted his teeth: "That's your problem, Harry! Without saying a word, the Ultimate Luminescent Charm, which wizard would come up with such a method!"

Harry said confidently: "In a dark environment, strong light is the most harmful. This is something that even a three-year-old child understands."

Lupin waved his hands weakly, "I thought you would use a Transfiguration or a Petrification spell."

"So I'm worried that you four are all idiots." Harry frowned.

Lupin clenched his fists: "I'm not like Sirius, I just can't keep up with your thinking."

"As for James..."

"James, well...he is just a little reckless and arrogant sometimes, but he is essentially a smart man."

Harry suddenly realized and nodded: "I understand." He waved his wand and Peter floated up.

Lupin was stunned and followed the pace. He felt that Harry's "understanding" and his expression might not have the same meaning.

"Should we hand him over to Dumbledore?" Lupin hesitated and finally did not continue the previous topic. "If he can help..."

Harry shook his head decisively: "No, it can't be handed over to Dumbledore."

Lupin was startled.

"Dumbledore can be relied upon at critical moments," Harry explained, "but his brain is filled with Fudge. It would be a great bargain for him to hand Peter over to him."

"In the end, he will just be thrown into Azkaban?"

"As I recall, there is no death penalty for wizards."

Lupin nodded heavily.

"Death penalty", as the most cruel means of execution, will not be imposed on human wizards. Only those...humanoid wizards who are classified as "magical creatures" will receive this punishment.

No matter how despicable or evil Peter is.

He is still human.

The Ministry would not give him the death penalty.

"The most urgent thing is that we have to find that brainless Sirius." Harry led the way with a calm tone.

Lupin reminded him: "Sirius is your godfather."

"Then find my brainless godfather." Harry immediately changed his words.

Lupin was silent.

He suggested this in order to get Harry to change the prefix, but it seemed to be ineffective.

When they reached the entrance of the secret passage, Harry stopped and threw Peter to the ground: "Professor, are you going to lock him up?"

Lupin agreed without any objection. He waved his wand and conjured up a rope to tie him up tightly, and then conjured up a sack to put him away.

Just go out.

Harry's tone became sincere, and he called out to him, "Professor Lupin."

Lupin turned around, a little confused: "Huh?"

"I apologize to you on behalf of my father," Harry said softly, "Time has proved that his suspicion was wrong. You are a very reliable friend."

"He failed you."

Lupin's eyes and nose were sore. He blinked heavily, raised his head, walked over and patted Harry on the shoulder: "Don't say that. It was a special period. I can understand James."

"My identity is indeed..."

"He was able to trust me when we were students, tried Animagus, and was willing to accompany me through those years. He was very good."