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

"Otherwise, why would he deliberately mention that corridor on the fourth floor during the opening ceremony?" Su Yu forcefully steered the conversation back on track.

Snape paused, then turned back to his work, saying, "You're overthinking it. It was just a friendly reminder to the student."

“Heh, really? I think it would have been better if he hadn’t mentioned it. If he had, some particularly curious young wizards would have gone there to take a look, like the Savior Boy.” Su Yu stared at Snape and said.

Snape paused in his work; sure enough, this guy knew Dumbledore's plan. Before Snape could answer, Su Yu continued:

"Do you think what Headmaster Dumbledore did was really right? Do you really want to see her children in danger?"

"To tell you the truth, of the two wizards who died and escaped in Hogsmeade today, I suspect the one who escaped was Quirrell. Although I didn't see his face clearly, the bulging head under the black hood is probably Quirrell's turban."

Snape finally became serious, looked into Su Yu's eyes, and asked, "How much do you know?"

Su Yu shrugged: "Not many, mostly just guesses, but I think it's most likely related to Voldemort, and Headmaster Dumbledore might want to use Harry to lure Voldemort out."

Snape remained silent for a long time before finally speaking: "Dumbledore will protect Harry's safety, you can rest assured about that."

Su Yu remained noncommittal, instead asking, "Are you really that sure? Besides, Hogwarts has more than just Harry as a student. Is it really a good idea to keep such a dangerous person at the school?"

"What good ideas do you have?" Snape asked.

Su Yu said frankly, "Not for now, but I hope that when I have a solution, you can stand by my side! Is that okay?"

Snape did not agree immediately, saying, "If your plan is indeed feasible, I will help you."

Having gotten the answer he wanted, Su Yu left satisfied. To his surprise, the main quest "The Headmaster's Secret" had jumped to 25% completion after his chat with Snape.

Sunday evening, Su Yu called the two brothers, George and Fred, into his office. The two boys were a little nervous, after all, the professor had just confiscated their Marauder's Map a few days ago.

Seeing the expressions on the two little ones' faces, Su Yu smiled and said, "Don't be nervous. Do you want to take this back?"

Seeing the Marauder's Map in Su Yu's hand, the two little ones immediately started nodding their heads like they were pounding garlic.

Su Yu put down the Marauder's Map, then took out a book titled "Elementary Alchemy Explained" from the drawer and continued:

"Take this book back and read it yourselves. If you can pass my individual exam before the end of this semester, you can become my disciples. In China, disciples receive a gift from their master after becoming disciples."

As he spoke, Su Yu once again raised the Marauder's Map in his hand, his expression a half-smile.

In fact, Su Yu was overthinking it. Fred and George had loved tinkering with magical gadgets since they were little and had long yearned for alchemy. Even if he didn't use these methods, as long as he used his title as an alchemy master, the two children would become his apprentices.

Sure enough, the two children were extremely excited upon hearing Su Yu's words. Almost without hesitation, they snatched the book from Su Yu's table and said:

"Don't worry, Professor Su, we will definitely pass your test!"

Watching the twins leave, a faint smile appeared on Su Yu's lips. The idea of ​​taking on disciples was something Su Yu had never considered before.

After all, he used to be just an alchemy master with mediocre magical abilities and some achievements in alchemy. In fact, the title of master was more due to his boundless imagination.

Under those circumstances, he could only do things befitting his status. By leveraging the prestige of the Stuart family, he solidified his identity as a master alchemist, which was probably the greatest achievement of his life.

But things are different now. He has a system, and in just over two months, he has deeply felt the expansion of his strength. Along with it, his ambition has also expanded.

A powerful wizard, if he lacks influence, is either bound by rigid rules or branded as a heretic.

Dumbledore and Voldemort are the best examples. Dumbledore was very powerful, but he was unwilling to cultivate his own power. Although he had a high reputation, if the board of directors' families were willing, he would still be stripped of his position as headmaster of Hogwarts.

As for Voldemort, he was more like a terrorist. Some might say that Voldemort had power and that the Death Eaters were his subordinates, but in Su Yu's opinion, the Death Eaters were more like a group of opportunists.

They gathered around Voldemort with their own agendas, hoping to leverage his power to gain more benefits for themselves.

This is why, after Voldemort disappeared, more than 95% of the Death Eaters immediately changed their stance, concealed their identities, and distanced themselves from Voldemort.

Grindelwald was far more shrewd than Voldemort 40 years ago; his influence spread almost worldwide. Unfortunately, he still tried to quickly win over a group of people with his ideas and ideals, instead of actually developing and cultivating his own power.

The power Su Yu wanted to build was one that started from the bottom, woven together by interests, and could have enough influence in the entire magic world. After all, in Chinese thinking, the right approach is to build high walls, store up grain, and delay declaring oneself king.

Therefore, he needed to build his own team, and Snape was naturally the first person he wanted to win over. Su Yu knew all too well just how talented his former friend was.

If his alchemy skill was LV8, then Snape's potion-making skill should be at least LV9, or even higher.

Moreover, Snape's dark magic and spells were definitely above level 8. If his mind hadn't been bound, Su Yu felt he could very well have become the next legendary wizard.

As for the students, George and Fred are just the beginning. These two children have a high talent for alchemy and a lot of creative ideas. In the future, the development of many functions of the magic phone can be entrusted to them.

Besides them, Su Yu's targets also include Gryffindor's Percy Weasley, Hufflepuff's Cedric Diggory, Slytherin's Gemma Farley, and so on.

However, Su Yu was not in a hurry. He needed to observe slowly. There were still several years before Voldemort officially returned, so he had plenty of time.

Chapter 21 A New Week (4.3k)

Soon, the second week at Hogwarts began. Su Yu hadn't given up on the side quests, and he went to class early in the morning with the first-year wizards.

However, he did not come to Ravenclaw and Hufflepuff's classes this week because they were taking Transfiguration class. Professor McGonagall had a lot of complaints about Su Yu last week, and he planned to make a tactical retreat and temporarily give up the Transfiguration skill point.

The class Su Yu attended today was Professor Flitwick's Charms class, and the students below were young wizards from Slytherin and Gryffindor.

Harry, Ron, and Hermione were quite familiar with Su Yu, and when they saw him arrive in their classroom, they immediately winked and made faces at him to welcome him.

Malfoy, Crabbe, and Goyle were also a trio, but their attitudes toward Su Yu were completely different. Malfoy's eyes were filled with resentment and malice. Thanks to Su Yu, he had become the laughing stock among the first-year wizards.

Malfoy naturally relayed Su Yu's words to his father, but the only reply he received was a simple: "Don't mess with him."

This made young Master Malfoy somewhat wary, so at this moment he only dared to secretly look at Su Yu.

Su Yu naturally didn't care about Malfoy's thoughts; at this moment, he was nodding to Professor Flitwick on the podium.

Professor Flitwick looked at Su Yu with a headache. He remembered the boy, of course. When he was in school, his talent for spellcasting was only barely passable. He didn't expect that after so many years, he hadn't made much progress.

If you haven't made much progress, that's fine. You could just hide away and secretly study and improve. But you insist on coming to your own classroom. Professor Flitwick couldn't bear to watch your clumsy incantations and staff-waving gestures.

The most bizarre thing was that this kid insisted on asking me after class how he had performed. We were all colleagues, and Professor Flitwick really didn't know what to say.

I thought that since I had managed to get away with it last week, Su Yu would be too ashamed to come back this week. But who would have thought that this kid would still be so shameless?

"Have you heard? Last week, Professor Su Yu's performance in Professor McGonagall's, Professor Flitwick's, and Professor Snape's classes was rather lackluster. The other professors didn't want Professor Su Yu to attend their classes," Crabbe whispered from the side.

"You're talking nonsense. Professor Su Yu is already an adult wizard. To become a professor, his magical level is naturally beyond question. Moreover, Professor Su Yu performed exceptionally well in last week's Defense Against the Dark Arts class, as can be attested to by people from Ravenclaw and Hufflepuff."

It was Hermione who spoke. She had a very good impression of Su Yu, the professor who had taken her all over Diagon Alley, and naturally defended him.

Malfoy turned his head and glared fiercely at Hermione: "Oh, really? Then perhaps you should learn more from your Professor Su Yu and see how wizards of lowly birth can survive better."

Hermione was about to retort when Professor Flitwick tapped on the desk and said, "Today's lesson is still on the Levitation Charm. Last lesson we already covered the key points of the spell's emphasis and hand gestures when casting the Levitation Charm."

"I'm sure everyone has practiced back home. Today we'll talk about why spells and hand gestures can affect a wizard's spellcasting..."

Professor Flitwick spent about 20 minutes explaining to the young wizards in detail the spells and gestures, and the principle of magical flow during the casting of the Levitation Charm.

Clearly, some people only had a superficial understanding, like Hermione Granger, while others, like Goyle and Crabbe, found it completely incomprehensible.

If there was anyone in the class who fully understood Professor Flitwick, it would probably be Su Yu.

If it were Su Yu from last week, he probably would only have a vague understanding of the content of this lesson. However, after raising his spell level to LV7, he has digested a large amount of knowledge, including what Professor Flitwick taught.

So when Professor Flitwick began to examine the students' learning outcomes, Su Yu won Professor Flitwick's praise with a perfectly executed spell.

"Oh my god, Sue, your spellcasting just now was absolutely perfect! I can't believe how much your spellcasting skills have improved in just one week!" Professor Flitwick said in disbelief.

But Su Yu's show-off was clearly not over yet. He put down the feather, stood up, and waved his wand at the stool. This time, he didn't chant a spell, but instead released a levitation spell with a perfect swing of his wand.

“Silent spellcasting! Sue, you’ve already reached this level. I must apologize to you. Last week I was secretly thinking that you haven’t made any progress in spells over the years.”

“It seems I was wrong, terribly wrong. You must have acted so clumsily last week because you were trying to appease these children.” Professor Flitwick was shocked again, having revealed his true thoughts.

In fact, Su Yu hadn't finished demonstrating yet. He could already cast low-level spells like the Levitation Spell silently and without a staff.

However, there was no need for that now, because just now his system had notified him that the side quest was complete and he had gained one magic-specific skill point.

Su Yu understood. He realized that these professors weren't unwilling to acknowledge and praise him; they simply had different standards for different people.

Just like when we go out to eat, if a ten-yuan street-side restaurant has fresh ingredients and tastes decent, we will give it a good review.

However, if it's a Michelin-starred restaurant that costs hundreds or thousands, our requirements will be very high. It must be unique, and we will be picky if there is even the slightest flaw.

At this moment, Su Yu was like a Michelin-starred restaurant to these professors. They were demanding the same standards from Su Yu, so Su Yu's LV3 and LV4 level skills were simply not up to their standards.

However, this is not entirely without its advantages. After my terrible performance last week, as long as I make any progress this week, the professors will definitely praise me without reservation.

Su Yu currently has one general skill point and one magic-specific skill point. He can choose to upgrade the magic skill to LV8 or upgrade the other skill by one level and then complete the side quest.

After hesitating for a long time, Su Yu sorted out his future. Magic power is the foundation of everything, and he must increase it to LV12. Alchemy is his specialty, and he must increase it to LV10 or above.

Besides alchemy, one's own combat power must also be improved. According to Su Yu's speculation, Voldemort's spells and dark magic must be LV10 or higher, while Dumbledore's spells and transfiguration must also be LV10 or higher.

Therefore, besides alchemy, Su Yu needs to focus on developing his skills in spells, dark magic, defense, and transformation.

The first two skills are currently at LV7, which is more than enough to deal with most Death Eaters. With the achievement system, Su Yu should be able to gain another 6 general skill points this semester.

Going forward, unless new methods are discovered, acquiring skill points will become extremely difficult, so it's best to save them whenever possible.

Therefore, Su Yu decided to dedicate some of his energy to studying and see if he could upgrade his Transfiguration skill to LV5.

In this way, he can save a general skill point and most likely get a Transfiguration skill point from Professor McGonagall, which is perfect.

When class ended, Su Yu, Harry, and the other two caught up. All three of them greatly admired Su Yu's spellcasting skills and hoped that Su Yu could teach them when he had time.

Malfoy, that forgetful fellow, deliberately said as he passed by them, "Hmph, what's so great about a professor reaching this level of spellcasting?"

Seeing that Professor Flitwick was still there, Su Yu didn't say anything, but he kept the little guy in mind and would give him a good beating when he had the chance.

For the next class, Su Yu didn't audit any more classes. Instead, he went to the library and borrowed several books on basic Transfiguration theory.

The librarian at Hogwarts was Mrs. Pince, a tall, thin woman dressed in a black gown and wearing a pointed wizard's hat adorned with feathers.

Time has left its mark on Mrs. Pince's face, but it is clear that she must have been a very beautiful witch in her youth.

Seeing the books Su Yu had borrowed, Mrs. Pins assumed he hadn't found any more advanced books on Transfiguration, and so she smiled and said:

"Professor Su, these are the most basic Transfiguration books. If you need more advanced books, I can recommend some."

Su Yu said, "Thank you very much, but I need these right now. Professor McGonagall said that I haven't made any progress in Transfiguration over the years."

“I think I must not have laid a solid foundation when I was in school. Now that I’m back in school, I hope I can make up for what I missed before.”

Mrs. Pince looked surprised and said, "My goodness, Professor Su, you are so humble and eager to learn. I think Professor McGonagall would be very proud to have a student like you."

Su Yu didn't say this casually. He knew that Mrs. Pince and Professor McGonagall were good friends, and that his words might very well reach Professor McGonagall's ears at some point in the future.

When Professor McGonagall learns that because of a single sentence from her, he has started from scratch, diligently studied Transfiguration, and made considerable progress, his chances of completing the mission will be much greater.

Impressed with his own cleverness, Su Yu took the book to a corner and began to read it seriously.

I didn't realize until I looked that my foundation in Transfiguration was really terrible. I hadn't even noticed many of the little details. No wonder Professor McGonagall gave me such a low evaluation.

Su Yu quickly immersed himself in his studies until around 3 p.m., when the magic phone in his pocket rang, reminding him that it was time for class.