Chapter 4 - It might be the quickest to fall into the trap, Little Pettigrew.

Ron and Harry were both surprised when they learned Dumbledore had arrived, especially Harry. The Dementors guarding outside the school had made him feel down, and not even Quidditch could cheer him up.The rat next to Ron was controlled by magic and fell into Dumbledore's hands. The surrounding magic surged, and the rat twisted and transformed in a flash of bright light, turning into a short, bald Men with grizzled hair. He screamed in terror, unable to believe his disguise had been exposed.Lu En secretly glanced at Dumbledore, who showed no expression on his face, only a slight frown. "Please inform Professor Snape for me, will you?" Dumbledore's tone remained calm, as if nothing could anger or frighten him. A silver-white Phoenix Patronus landed on Lu En."No... no..." The short Men seemed to anticipate his end. He clasped his hands together and confessed to Dumbledore, "Please, please, you... you can't..."Lu En didn't listen further and walked straight out to find his respected Dean—even though the Dean might not like him.Upon hearing that Peter Pettigrew was not dead, Snape's face immediately darkened. Lu En clearly sensed the bone-chilling cold permeating the air around him; generally, this was a sign of certain Dark Arts. There was an unspoken understanding between him and Dumbledore. Before the silver-white Patronus could even fly over, Snape walked directly to the Potion shelf and took out a small bottle of colorless, odorless liquid.Seeing that he didn't need to be reminded, the Phoenix didn't bother to fly, instead shrinking onto Lu En's shoulder, wiggling its body, and finding a comfortable position to perch. Lu En looked at this lazy Patronus in surprise; he really didn't know the Patronus Charm was so magical. It seemed he had to learn this magic. Perhaps he could ask Dumbledore to teach him?"What are you waiting for?" Snape glared at Lu En and strode out, arriving at Ron and Harry's dormitory. At this moment, Ron, Harry, Seamus, and Neville were already standing outside the door. Dumbledore clearly didn't want them involved in this matter. Just as Lu En also wanted to enter, Snape held out a hand and stopped him. The intelligent Phoenix also shook its head at him, then flew straight inside. Snape snorted coldly and followed him in. Immediately after, the pleas for mercy inside vanished.Lu En sighed and stood outside the dormitory. At this moment, the other four outside the door all breathed a sigh of relief. It seemed Professor Snape's prestige was very high.Harry fidgeted for a long time before finally asking, "Excuse me, do you know that rat...""That's not a rat," Lu En said, looking at Harry. "He's an illegal Animagus.""An illegal Animagus? Isn't that a person, and a..." Ron looked like he was about to throw up, "and a bald Men...""Animagus is a profound Human Transfiguration. These Wizards can transform into a certain animal at will. When they transform into animal form, they retain roughly the same thinking ability, self-identity, and memory as before the transformation," Lu En explained. "And the Animagus inside is somewhat related to Harry.""What relation?" Harry immediately became agitated.Lu En shook his head: "Sorry, you'll have to ask Dumbledore about that.""I just want to throw up..." Ron felt nauseous at the thought of Scabbers sleeping with him for so many years. Suddenly, he seemed to remember something: "Oh! I should apologize to Crookshanks and Hermione... Damn it, I had a big fight with my friend over that disgusting Men. I thought it wanted to eat my pet, but it was just helping me!"Ron sighed and turned towards the library. Neville and Seamus also followed, but Harry didn't; his mind was entirely focused on the three people inside the door.Not long after, a group of little Gryffindors gathered at the door. Today, their dormitory had been intruded upon by two Slytherins and the Principal, indicating something big had happened. Professor McGonagall also arrived quickly."Good day, Professor," Lu En said. Harry and the other little Gryffindors also greeted her."Hmm," Professor McGonagall nodded, then said to Lu En specifically, "Remember not to practice Human Transfiguration privately. You need to wait for your magic to grow naturally now; this will greatly reduce the difficulty."Lu En nodded obediently.Professor McGonagall walked straight into the dormitory, followed by a succession of other Professors. The poor Gryffindors could only awkwardly greet each one."Hey, our Transfiguration master, can you tell us what's happening here?" A red-haired, freckled Men walked over and put his arm around Lu En's left shoulder. Another almost identical-looking person put his arm around Lu En's right shoulder and said, "Yeah, so many Professors gathered together, it couldn't be because our poor brother's grades are too bad and they're all here to tutor him, could it?"Because Lu En never got involved in the disputes between Slytherin and Gryffindor, and because of his handsome appearance, most Gryffindors had a good impression of him. They believed Lu En was a Ravenclaw who had been mistakenly sorted into Slytherin by the Sorting Hat. But the only Gryffindors truly willing to interact closely with Lu En were these two men—the Fred and George brothers. They had consulted Lu En multiple times about prank items and both thought Lu En was a good person."The Principal and the Professors are here to catch a criminal," Lu En said."Um, Scabbers is actually an Animagus..." Harry added."Wow!" Fred exclaimed happily, "Let me guess, his human form must be a beautiful Women?"George tsked, "Come on, if it were really a beautiful Women, why would it be Percy's pet? If you ask me, it must be a Men, and a very, very ugly Men, and preferably bald!"The surrounding Gryffindors laughed, especially after Harry nodded in confirmation. The children all burst into laughter, and even Lu En smiled along. He quite liked these Gryffindors; even after being attacked by Dementors on the train just now, they could still laugh afterwards.However, the atmosphere inside Harry's dormitory was not as cheerful as outside.McGonagall's lips trembled with anger, and Snape's eyes were even redder, gleaming with an eerie light. This wasn't a metaphor, but a manifestation of some Dark Arts. The other Professors also looked at Peter Pettigrew—their supposed hero, who turned out to be a traitor who had succumbed to the Dark Lord—either with anger or with sighs."Professor... Principal..." Peter cried, "What could I do? That Dark Lord... you don't know... his weapons are unimaginable... I was scared at the time. I was never as brave as Sirius, Lupin, and James. I never meant to do it... The one whose name cannot be spoken forced me... He... he is everywhere! What's the benefit of refusing him? You don't understand! He would have killed me, Principal!"Dumbledore pressed down Snape's already raised wand. He said nothing, but the disappointment in his eyes seemed to make Peter's heart stop beating.