I've already become a Hogwarts professor, and the system only just appeared.

Su Yu waved to the two of them and comforted them, "Arthur, Molly, don't worry. He's been in your house for over ten years. If he wanted to hurt anyone, he would have done it already."

"We suspect that the person who betrayed James Potter and Lily was not Sirius Black, but Peter Pettigrew. So, he's probably hiding in your house to escape capture."

“If that’s the case, then Sirius was wrongly accused in Azkaban for 12 years?” Arthur immediately realized the problem.

Su Yu nodded: "That's right, and you, Arthur Weasley, will be the one to find out the truth and help Sirius Black be exonerated."

"This...this isn't my achievement, it's yours..."

Before Arthur could finish speaking, Su Yu interrupted him: "I don't need this credit, but you are different. With this credit, your resume this year will become extremely dazzling."

“I think we should find Scabbers as soon as possible and figure out what really happened. If it’s true, I’m not comfortable letting Ron stay with him.” Molly didn’t understand the Ministry of Magic’s affairs; all she had was the simplest concern for her son.

In the afternoon, in Dumbledore's office, besides Su Yu, Lupin, Arthur, and Molly, Rita Skeeter, Snape, and Professor McGonagall were also present.

After listening to Su Yu recount the entire story, Dumbledore's finger rhythmically tapped on the physical Marauder's Map.

“Sue, is there anything wrong with this map?” Dumbledore asked.

“No!” Su Yu affirmed. “Strictly speaking, it’s not a standalone alchemical artifact, but rather a monitor connected to Hogwarts Castle. I think you know more about Hogwarts Castle than I do.”

Dumbledore nodded: "I had my suspicions about this back then, but when Sirius was arrested, he did not resist or make any excuses for himself."

“If all of this is true, Sirius’s actions are a form of self-punishment; he’s blaming himself for not protecting James and Lily!” Lupin said, defending Sirius based on his understanding of him.

"I believe you. What should we do next?" Dumbledore thought for a moment and then agreed with Su Yu.

Su Yu smiled. With Dumbledore's approval, the matter was practically a sure thing. So he revealed his plan:

"Headmaster Dumbledore, Professor McGonagall, the three of us will accompany Arthur and Molly to see Ron later, the reason being to check on how Ron is doing at school."

"Arthur, Molly, your expressions must be natural, and try not to arouse Peter Pettigrew's suspicion."

"Headmaster, Professor McGonagall, you are both masters of Transfiguration. If he is unwilling to voluntarily undo his Animagus transformation, we will need your help!"

Professor McGonagall nodded: "No problem, Sue. Actually, you don't need to be modest. With your rate of progress, your skill in Transfiguration will surpass mine sooner or later."

“Thank you for your affirmation!” Su Yu smiled and bowed to Professor McGonagall, then turned to Rita Skeeter and Lupin and said, “You two cast Disillusionment Charms and follow behind us. Reappear after we have completed the capture.”

"Try to film the whole process. I want to make this a headline story tomorrow and establish it as an ironclad case so that the officials at the Ministry of Magic won't cause any more trouble."

“Don’t worry, boss!” Rita Skite nodded, she was very excited. If this was true, then tomorrow, “Today’s Headlines” would definitely surpass “The Daily Prophet” and become the most prominent news media in the wizarding world.

She had even started writing in her head how to portray Arthur Weasley's bravery and wisdom, the Ministry of Magic's incompetence and corruption, Peter Pettigrew's cunning and treachery, and Sirius Black's tragic helplessness.

After dinner, Ron, Harry, and Hermione returned to the Gryffindor common room, where they discussed how to sneak out that night to continue brewing Polyjuice Potion.

A female voice called out, "Ron, oh my little lion, let me see how you're doing at school!"

Chapter 107 Arrest and Interrogation (Part 1)

“Mom…Mom, what are you doing here!” Ron looked up, completely bewildered. Why was his mother suddenly at school?

And how could she call him by his nickname in front of so many classmates? It was so embarrassing. Ron's only thought now was to get out of there as soon as possible.

But he couldn't do that, because Molly had already taken two steps forward and hugged Ron.

Although Su Yu had been comforting her, Molly was still very worried. Only when she saw that Ron was really alright did she feel relieved, and her actions became a little too intimate.

"Mom, don't do this!" Ron struggled to break free from Molly's embrace. By then, he could hear his classmates whispering and laughing, and Ron guessed that they were probably laughing at him.

Ron, who had struggled free, saw the group of people behind his mother and was even more surprised. He couldn't help but ask, "Dad, why are you all here? Did something happen?"

Arthur coughed twice to cover his emotions and said, "Of course there are no children. Your mother and I just happened to be in Hogwarts Castle on some business, so we thought we'd drop by and see you. Where is your dormitory? Could you show us around?"

“Uh…of course…” Ron didn’t really want to take them to the dorm, but what could he do?

So everyone followed Ron to their dormitory. Most boys' dormitories have a strange smell, but Hogwarts definitely doesn't, because the young wizards learn the Cleansing Charm very quickly after enrollment, a little magic that all nerdy guys envy.

Five children lived in this house: Ron Weasley, Harry Potter, Neville Longbottom, Seamus Finnigan, and Dean Thomas.

Ron introduced each person's bed to his parents one by one, and finally came to his own bed. While his parents weren't looking, he stuffed a pair of underwear into the blanket.

"This is my bed, and this is my table. It looks pretty good, right? That's Banban's cage. I usually keep him in my dorm..." Ron introduced somewhat awkwardly.

Su Yu stepped out from the crowd, seemingly casually glancing at Banban's cage, and said, "Hey, Ron, you have a pet mouse. It looks really big."

Ron looked at Scabbers and said, "That's right, Professor Su, Scabbers has been in our family for a long time. It used to be Percy's pet. Last year, my mother bought Percy a new one, and he gave Scabbers to me. It's very brave. Once, it even bit Malfoy to protect me!"

“Oh, really? That’s quite a powerful…Transfiguration!” As he spoke, Su Yu suddenly drew his wand and cast a Transfiguration spell, transforming Banban’s fragile wooden cage into a sturdy and finely crafted iron cage.

The sudden change startled Banban. It paused for a moment, then began to frantically bump into things on the cage, making squeaking noises.

"Professor Su, what are you doing? You've scared Banban. It's a little scared..." Ron was about to speak up for Banban when his mother pulled him aside.

Suddenly, three more people rushed in from outside: Lupin, Rita Skeeter, and Snape. Su Yu threw the iron cage in the middle of the house, and everyone around drew their wands and pointed them at the rat in the middle.

"Wormtail, it's you! I recognize you now. Reveal your true form, or I'll force you to use your curse on me!" Lupin was the most agitated, roaring angrily.

Upon hearing Lupin's voice, the rat in the cage stopped struggling, curled up in the corner of the cage, and looked at the crowd surrounding it in terror, trembling.

"What on earth is going on? Why are you doing this to Scabbers? It's terrified!" Ron seemed confused and tried to stop the others.

Molly quickly pulled him back, saying, "Stop messing around, Ron, that's not Scabbers!"

"Hurry up! Show your true form. I know it's you. I'll count to three, one..." Lupin couldn't wait any longer; his hands were even trembling.

Dumbledore then patted Lupin on the shoulder: "Relax, Remus, let me handle this!"

As he spoke, Dumbledore waved his hand, and a spell was cast on Scabbers. Inside the cage, Scabbers began to swell rapidly like a balloon, and the cage that bound him turned into a chain that tightly bound him.

Before long, this guy transformed into a middle-aged fat man who was 1.65 meters tall, weighed over 100 kg, had shifty eyes, and a pair of large rat teeth. He was none other than Peter Pettigrew.

"It really is you, Little Pettigrew! It's been a long time!" Su Yu teased.

Peter Pettigrew squinted at Su Yu, forced a fawning smile, and stammered, "Oh...so it's Su Yu. It's been so long. Could you please let me go?"

"Let you go? You bastard, how dare you say that? Tell me! Did you betray James and Lily?" Lupin struck Pettigrew with a lightning bolt and questioned him angrily.

A very thin current struck, causing Peter Pettigrew's plump body to tremble and twitch a few times. His little eyes darted around wildly as he endured the tingling sensation and knelt on the ground.

"Lupin, it wasn't me, it wasn't me! You know I'm not the Secret Agent, Sirius is! He betrayed James and Lily, and he even tried to kill me! I'm so scared, I just want to hide!"

As he spoke, Peter Pettigrew kept nudging Lupin, like a fat maggot, rubbing his face against Lupin's shoes, as if that was how he showed his affection for him.

Unfortunately, before he could reach Lupin, Arthur kicked him back, shouting, "Then explain to me why you've been hiding in my house for over a decade. What's your purpose?"

Upon seeing that it was Arthur, Peter Pettigrew's expression changed again. He stuck out his butt, pressed his face to the ground, and looked at the other man with his head down, just like when Scabbers made a mistake.

When Scabbers makes this gesture, it's adorable and evokes pity, but when Peter Pettigrew does it, it just makes you feel disgusted.

“Arthur, my old master, you know me. For the past ten years or so, I have been very well-behaved at home. I have no bad intentions. I just wanted to escape Sirius’s pursuit!”

Arthur sneered, not believing Sirius's words at all: "Really? Do you even believe what you're saying? You dare say you don't know Sirius has been captured and imprisoned in Azkaban?"

Peter Pettigrew chuckled twice and continued, "I...I...I know, but I'm still scared. I'm scared of the Death Eaters. There are still many Death Eaters outside. They are all Sirius's accomplices. If they know I'm still alive, they will definitely come to catch me!"

For a moment, the interrogation seemed to have reached a stalemate. Although Peter Pettigrew's words had loopholes, Su Yu and the others could not seem to prove that what he said was false.

Chapter 108 Arrest and Interrogation (Part 2)

In this situation, Lupin and Arthur instinctively looked at Dumbledore, after all, he was the greatest white wizard of their time and would surely have a way to get the other to tell the truth.

And Dumbledore did indeed have a way; he parted to make way for Snape, and when Pettigrew saw Snape, his eyes were filled with terror, and he said:

"Snape...Snape...Snape! He's a Death Eater! He's a Death Eater! Grab him, grab him!"

Snape remained expressionless, his lips twitching slightly when he heard "Death Eaters." He slowly pulled a small vial of potion from his pocket and said calmly, "It seems you need some Veritable Potion!"

“I…” Peter Pettigrew’s entire performance and pretense came to a standstill at this moment. He stared blankly at Snape, his eyes filled with despair.

"No, no, don't give me that stuff to drink! I'll tell you everything!" Peter Pettigrew wailed as Snape continued to walk toward him.

Truth serum doesn't taste good. After drinking it, you'll be in a state of nausea, dizziness, and lethargy for several days. Anyone who has experienced it once would never want to experience it a second time.

"Then tell me honestly, who betrayed James and Lily?" Lupin asked again.

“It’s me, it’s me! After you left, James changed the Secret Keeper to me. The whole world thought Sirius would be the Secret Keeper. Who would have thought that the cowardly Peter Pettigrew would be the Secret Keeper? After all, I’m just James’s little tagalong!”

Pettigrew's voice became shrill, perhaps indicating that he had given up resisting. His tone carried a hint of self-mockery, excitement, and madness.

"Why?" Lupin roared, unleashing another lightning spell.

This time, Pettigrew didn't feign pitifulness. His body was twitching, but his expression seemed to be one of enjoyment: "Why? Of course, it's because I want to live!"

"Is it wrong for me to want to live? You have no idea how powerful Voldemort is, you have no idea! You're just ignorant people trying to be heroes! I don't want to die with you!"

Upon hearing this answer, Lupin was stunned and didn't know what to say for a moment. Su Yu continued, "When did you become Voldemort's lackey?"

"When? A year or two before that!" he said, glaring at Lupin. "It's all your fault. I was captured by the Death Eaters, and if I hadn't reacted quickly, I would be dead."

"So I gave in, and from then on I became a member of the Death Eaters, a spy planted by the Dark Lord in the Order of the Phoenix."

"Not only Potter, but also the news about Burns and the Longbottoms, I secretly passed it on to the Dark Lord. What's wrong with submitting to the strong and surviving?"

Peter Pettigrew became more and more excited as he spoke, and Rita Skeeter, who was standing next to him, was also very excited. She recorded Peter's speech word for word.

It's worth noting that Burns and the Longbottoms were wartime heroes, and it's unexpected that their misfortune was also related to this chubby boy. Today's gains are truly immense.

Another person who was also very excited was William Longbottom. When he heard that his parents had been betrayed by the man in front of him, he clenched his fists.

“Very well, since you’ve admitted it, then let’s go. You’ll be taken back to the Ministry of Magic. I hope you have a good time in Azkaban!” Su Yu said.

The group pointed their wands at Peter Pettigrew and led him away from the Gryffindor boys' dormitory. As they passed Ron, the boy leaned forward somewhat pitifully.

"Ron, my little master, save me, save me! I'm your Scabbers, I even protected you, have you forgotten?"

However, upon seeing his face, Ron was so frightened that he immediately burrowed into Molly's arms. Remembering how he often slept with this mouse at night, a feeling of nausea arose involuntarily.

Just as Peter Pettigrew was about to leave the room, Nave finally couldn't hold back any longer. He rushed forward and punched Peter Pettigrew hard in the face.

Nawei didn't speak. He gritted his teeth, his whole body trembling, and stared intently at the person who had been knocked to the ground.

“Oh, you’re Longbottom, it must be you. You look just like your father. I’m sorry, I didn’t want to do that, but I had no choice!” Pettigrew quickly recognized Naveen and apologized, but there was a smile on his lips and no trace of remorse.

Seeing Pettigrew's expression, Navel wanted to go up and give the guy two more punches, but Dumbledore stopped him: "Navel, the Ministry of Magic will give him the punishment he deserves!"

Soon, Kingsley's Auror squad arrived at Hogwarts Castle. Their mission was to meet Arthur and help him escort Peter Pettigrew back to the Ministry of Magic.

They completed the handover ceremony at the entrance of Hogwarts Castle, and the young wizards from all the houses witnessed the scene from afar and took photos.

Tonks was naturally in the escort team as well. Taking advantage of the handover between her captains, she quickly came to Su Yu's side and started to snuggle up to him.

However, this little incident was witnessed by Gemma Farley from a distance. Gemma Farley had actually seen Tonks before, but she looked completely different back then, so she didn't recognize her.