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

However, Dumbledore simply nodded slightly to him and said, "Thank you, Lockhart, but I don't think it's necessary for the time being."

Dumbledore then looked at Filch: "Take Mrs. Lorris to the school hospital first. Mrs. Pomfrey will take care of her for the time being."

"Harry, Sue, Severus, and Minerva, come to my office!"

Seeing that Dumbledore hadn't called on him, Lockhart wanted to try again, so he said, "Professor Dumbledore, is there anything else I can do? I can offer some help."

"Thank you, but I don't need it for now!" Dumbledore nodded to Lohart and turned to leave.

Arriving at Dumbledore's office, Su Yu casually found a place to sit down. Unlike his cautiousness last semester, he was much more at ease when facing Dumbledore this semester.

Firstly, because he had already fully assumed his identity, Dumbledore wouldn't do anything to him given his personality. Secondly, because of his increased strength, he had more confidence.

Su Yu spoke first, recounting how Harry had previously heard Parseltongue and how he had pleaded for help after hearing it again, before looking at Harry:

"Harry, tell us in detail what you did before you heard that voice!"

"Okay...okay, I went to Luke the Headless's death anniversary party today. There were hundreds of ghosts there, but their food and celebration style weren't really suitable for us..."

As Harry spoke, he recalled the rotten salmon and moldy peanuts from the death anniversary party, and a wave of nausea washed over him.

At this moment, Snape let out a cold laugh: "Heh, attending the Ghost's death anniversary party, I really don't know if Mr. Potter is brave or ignorant."

"Headmaster, Mr. Potter should be punished for not attending school activities on time. I think we can disqualify him from being a Quidditch player!"

Professor McGonagall immediately objected: “Severus, we have no reason not to let the boy continue playing. The cat wasn’t hit on the head by a broom, and it was clearly not Harry who did it.”

Su Yu found it somewhat amusing. Snape's little scheme was so elaborate that he could hear it even standing in Hogsmeade Village. It has to be said that Snape was a good headmaster; he would stop at nothing to ensure his house could win the House Cup.

However, Su Yu wasn't concerned about that at the moment. He asked, "Harry, you mean hundreds of souls? That's almost all the souls in the castle, right?"

“I think so!” Harry said.

Su Yu understood. So the person who opened the secret room did so only when the weeping Myrtle was not around.

Having asked enough questions, Dumbledore told Harry to go back first, then turned to Su Yu and asked, "Su, you seem to know a lot. Share it with us!"

Su Yu didn't hide anything and said, "Principal, do you remember what I told you before the start of the semester? There was a little elf who stole Harry's phone and tried to prevent him from returning to school."

"Later I caught the little guy. He was from the Malfoy family, but he wasn't there to harm Harry. On the contrary, he wanted to protect Harry."

"He overheard at home that the Dark Lord had sent someone to the Malfoys' house, ordering him to deliver a dark magic artifact that could open the Chamber of Secrets in Slytherin to Hogwarts. He was worried that Harry Potter would be harmed, so he did it."

Upon hearing this, Professor McGonagall abruptly stood up: "My God, you mean this was plotted by the Dark Lord and Lucius Malfoy? Could it be Draco Malfoy?"

"Minerva, don't rush, let Sue finish speaking!" Dumbledore patted Professor McGonagall on the shoulder, comforting her.

Snape seemed to understand something and asked, "So that's why you came to me back then, asking if I still had contact with other Death Eaters?"

Su Yu nodded and continued, "The Dark Lord's idea was to have Draco Malfoy bring that item into the school, but Lucius was obviously unwilling to do so, so he spread the word on the black market that he was selling an item that could open the Chamber of Secrets at Hogwarts."

"So that dark magic artifact is now inside Hogwarts Castle, and it's what opened the Chamber of Secrets?" Dumbledore asked.

“I think so!” Su Yu confirmed.

For a moment, everyone fell silent. According to Su Yu's information, the person holding that item was most likely a student, but how could they find that person among the students?

Professor McGonagall, still clinging to a sliver of hope, asked, "Sue, do you know who that person is?"

"I'm sorry, Professor McGonagall, I didn't know," Su Yu said helplessly.

Snape stood up and said, “Now that we have so much information, I think it’s necessary to conduct a thorough inspection of all the dormitories to see what the students have brought to school.”

Dumbledore shook his head: "Severus, sit down first. We are just professors, not Aurors. We have no right to invade students' privacy at will. Sue, do you have a better solution to this?"

Please take one day off.

Sorry everyone, I have something to do today, so I'll be taking the day off.

Chapter 103 The Search for Slytherin's Successor (Part 1)

When Dumbledore asked him a question, Su Yu didn't hide anything and recounted how he had used the Marauder's Map to find people on the two previous occasions.

Dumbledore nodded, quite approving of Su Yu's method.

At this point, Snape said, "So the two suspicious people you saw before were both from Ravenclaw?"

“Severus, what do you mean?” Dumbledore looked at him.

Snape said, "If it's a dark magic item, it's not impossible to control a junior wizard to open this secret room. If both suspicious individuals are from Ravenclaw, it's very likely that the person possessing the dark magic item is also from Ravenclaw."

Dumbledore pondered for a moment, then said to Su Yu, "Su, you should continue to follow up on this matter. I think you can talk to these two young wizards first, but don't be too aggressive. Or you can ask your pet for help."

Pets? Su Yu instantly realized that Dumbledore was referring to coal balls, which meant he was implying that he should use Legilimency on the two children. This old man was indeed a repeat offender.

However, this was actually similar to what Su Yu had thought, so he nodded in agreement: "Okay, Professor Dumbledore."

……

While Su Yu and his friends were discussing how to find the person who possessed the Dark Magic artifacts, Harry, Harry, and his friends were also discussing who was the true heir to Slytherin.

They sat in the far corner of the Gryffindor common room, and Hermione asked, "Who do you think will be Slytherin's heir?"

"It wasn't me, it really wasn't!" Harry immediately waved his hands to show his innocence.

“Of course we know it wasn’t you!” Ron chimed in. “I think it was Draco Malfoy. That guy has always been awful to Muggles, and did you see his expression just now? He was totally gloating.”

"Is Malfoy the heir to Slytherin?" Hermione asked skeptically.

“Look at their family,” Harry agreed. “They’re all Slytherin, and he always brags about it. They’re probably Slytherin descendants. His father was wicked enough.”

“They may have had the key to the secret chamber for centuries!” Ron said, “passing it down from generation to generation, from father to son…”

“Yes!” Hermione said cautiously, “I think it’s possible…”

“But how can we prove it?” Harry said pessimistically.

“Perhaps there is a way!” Hermione said slowly, glancing quickly at Percy at the other end of the common room, and lowering her voice even further. “Of course, it’s not easy to do, and it’s dangerous, very dangerous. We’d probably have to break fifty rules.”

"Tell us again in about a month, around the Christmas holidays, so we won't break the school rules!" Ron said impatiently.

“Alright, I might as well tell you now,” Hermione said calmly. “What we need to do is get into the Slytherin common room, ask Malfoy a few questions, and do it without him recognizing us.”

“Are you kidding me? That’s impossible!” Ron said definitively.

“No, that’s possible, as long as we have the Compound Herbal Decoction!” Hermione’s lips curled up.

"What is that?" Harry and Ron asked at the same time, their eyes revealing the clear-headedness and naiveté typical of underachievers.

Hermione was speechless and asked, "Do you all sleep during Potions class? Professor Snape mentioned this in class a few weeks ago."

"This potion can temporarily transform you into someone else. Just imagine, we can transform into three Slytherin students."

"No one will doubt us. Malfoy might tell us everything in the future, or he might be bragging about it right now in the Slytherin common room. We don't even need to ask him."

“I think this kind of compound formula is a bit risky,” Ron said, frowning. “What if we turn into three Slytherins and can never turn back?”

“The effects will wear off after a while,” Hermione said impatiently, waving her hand. “But the recipe is hard to come by. Snape said it’s in a book called ‘Potions of Power,’ which is definitely in the restricted section of the library.”

There is only one way to borrow books from the restricted area: obtain a note signed by a teacher.

“We have no reason to borrow that book,” Ron said, “because none of us would concoct those potions.”

“I think,” Hermione said, “that if we pretend to be interested in this theory, maybe there’ll be some hope…”

“Professor Sue! We can go to Professor Sue and ask for his approval note. He will definitely agree to it!” Harry said, his eyes lighting up.

……

At the start of the new week, following Dumbledore's advice, Su Yu first summoned Padma Pettier to his office.

This is a girl of Indian descent. Judging from her skin and facial features, it is not hard to tell that she is a noblewoman from a high caste in India, and she is also very beautiful.

When Pettier arrived at Su Yu's office, she was a little nervous. Su Yu took out a few Blue Peacock Candies from his drawer. He had bought them in New York and given some to Dumbledore. He didn't have many left.

The blue peacock candy, about the size of a palm, immediately spread its long tail feathers after being placed on the table, proudly walking back and forth on the table, showing off its beauty to the two of them.

When Petir saw the blue peacock candy, her eyes lit up immediately. She reached out and plucked a piece from its spread tail feathers, put it in her mouth, and a unique Indian cheese flavor mixed with the sweetness of the candy filled her tongue, making the little girl's eyebrows and eyes involuntarily curve into a smile.

"I never expected Professor Su to like our Indian Blue Peacock Candy!" Petil seemed to have opened a floodgate of words, continuing, "When I was little, my grandmother would always give me..."

Su Yu kept smiling, petting the cat while listening to the little girl's story and chatting with her about everyday things. Suddenly, Su Yu asked, "Padma, have you encountered anything strange since the start of this semester?"

"Strange things?" Petit hesitated for a moment, then asked, "Professor Su, what are you referring to?"

Seeing that her expression didn't seem fake, Su Yu continued to remind her, "Or rather, what did you do on the first Wednesday night after school started?"

Petit recalled, "If you put it that way, that night was indeed a bit strange!"

"Oh? Tell me the details!" Su Yu immediately became interested.

Pettier said, "That noon, my sister, Parvati Pettier of Gryffindor, and I had a fight at noon, and after school I went straight back to the Ravenclaw common room."

Su Yu immediately grasped the key point and asked, "So you didn't go to the Gryffindor common room that night?"

Chapter 104 The Search for Slytherin's Successor (Part 2)

“I didn’t go to the Gryffindor common room that day.” Pettier nodded and continued, “But it was a strange day. I was going to read a book in the Ravenclaw common room, but I fell asleep very quickly.”

"Did you fall asleep in the common room?" Su Yu continued to ask, recalling Mia's condition when she returned to the dormitory last week.

Petil thought for a long time, and finally shook his head helplessly: "I'm sorry, Professor Su, I can't remember. I only remember that when I woke up the next morning, I was in my dormitory bed."

As expected, Su Yu asked a few more questions and then let Petil leave. He then called Mia to his office and asked her the same questions.

Mia's situation was similar to Petil's. She was reading in the common room at night when she suddenly felt very tired. She couldn't remember anything after that, and when she woke up, it was already the next morning.

From their experiences, Su Yu could easily conclude that anyone carrying a Voldemort Horcrux could freely enter and exit Ravenclaw's common room. In that case, Su Yu planned to install a few scouts there to observe the situation.

Just as Su Yu was about to leave, there was another knock on the office door. When he opened the door, he found it was Harry's trio.

"Why are you out so late again?" Su Yu asked, letting the three of them in first.

Hermione smiled and spoke first, "Professor Su, we recently heard some very interesting magical knowledge in class and would like to find some related books, but those books are in the restricted area. We would like you to give us a permit!"

Su Yu leaned back on his desk with interest, watching the three little ones. Hermione's expression was fairly natural, but Harry and Ron were clearly a bit nervous and didn't dare to meet Su Yu's gaze.

Su Yu searched his memory for the plot and figured that the three little guys were probably going to find the recipe for the compound decoction.

So Su Yu deliberately made things difficult: "Oh? What kind of magical knowledge could interest all three of you at the same time? Tell me, maybe I can offer some help."

“It’s some information about potions!” Harry explained.