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

Even if these centaurs really did embezzle the crown, his loss wouldn't be significant. He would then have an excuse to directly attack the centaurs' stronghold.

Of course, Ferenze was unaware of Su Yu's inner thoughts. He bowed to Su Yu again and said, "Thank you for your generosity, Professor Su. How about we meet here next Friday at this time to discuss the final outcome?"

"As you wish!" Su Yu returned the wizard's salute.

Before leaving, Ferrenze suddenly turned to Su Yu and Hagrid and said, "Hagrid, shadows are gradually enveloping the sky, the stars are dimming, Hogwarts is being surrounded by a black mist..."

After saying that, the guy turned around and ran away without explaining what he meant. Su Yu hated riddle-solving people like that the most.

On the way back, Coalball went off to play by himself, leaving only Su Yu and Hagrid. Bored, Hagrid asked, "What does Ferrenze mean? With Dumbledore around, Hogwarts is the safest place in the world. How could it be surrounded by black mist?"

Hearing Hagrid's words, Su Yu almost burst out laughing. In the Harry Potter fan community of his previous life, there was a well-known joke: Hogwarts is the safest place in the world.

However, Hagrid didn't get the joke, so Su Yu said, "I just saw a newspaper on your coffee table that said Gringotts was robbed. If I remember correctly, that was news from two weeks ago, right?"

"Ah, it seems, it seems so!" Hagrid said haltingly, clearly a little nervous.

“Hagrid, I know you don’t usually follow the news, but you’ve kept this newspaper, so you must care about it a lot,” Su Yu continued.

"I didn't, I'm not, don't talk nonsense!" Hagrid shook his head, denying it three times.

Su Yu chuckled: "Is that so? As far as I know, on the morning of the Gringotts theft, you and Harry went to Gringotts, and you even took something with you."

“If I’m not mistaken, that thing should be the one Dumbledore asked you to retrieve Hogwarts, if you connect Frenze’s words with this matter.”

"Do you think it's possible that the guy who stole from Gringotts is after what you took, and that he's currently planning to infiltrate Hogwarts and steal it again?"

Chapter 24 Filch's Request

"Ah, this... I didn't say anything, you guessed it yourself!" Hagrid nervously tried to distance himself from the situation.

Seeing Hagrid's goofy appearance, Su Yu couldn't help but laugh and continued to tease, "If I'm not mistaken, that thing should be in one of the rooms on the left side of the fourth floor."

Hagrid was so frightened that he covered his mouth, made muffled noises, and shook his head frantically, indicating that he really didn't know anything.

Su Yu glanced at the main quest: The Principal's Secret. Sure enough, the progress bar had advanced quite a bit. It seemed that he would have to make the trip himself to complete this quest.

It's clearly not the right time to go now. If Dumbledore finds out, given the old man's suspicious nature, he'll definitely be suspicious for a long time. It seems I can only follow the protagonist, Harry Potter.

After exchanging a few more jokes with Hagrid and taking some eight-eyed spider legs from his hut, Su Yu returned to his office, satisfied.

But at the office door, he encountered someone who was both expected and unexpected: Filch, the custodian of Hogwarts.

Filch was clearly different today. He was wearing a well-tailored suit, and his hair was obviously carefully combed. He was hunched over with a somewhat frightening smile on his face.

"Professor Su Yu, you're back!" Filch said humbly upon seeing Su Yu.

Su Yu understood Filch's intention, but still asked, "Mr. Filch, is there anything I can help you with?"

Filch looked around and then said, "Professor Su Yu, may I come into your office for a chat?"

“Of course.” As he spoke, Su Yu opened the office door and invited Filch into the room.

Su Yu gestured for Filch to sit down, then waved his wand, and a cup and a pot jumped to Filch's side, pouring him a pot of tea.

Although Filch had witnessed wizards casting spells many times, he still couldn't help but feel envious every time he saw such a magical scene. He spoke first:

"Professor Su Yu, I apologize for visiting you. I've heard that you invented an alchemical tool that can unleash magic without casting spells. I wonder if someone like me can use it?"

Su Yu poured himself a cup of tea and said, "Mr. Filch, as far as I know, the reason why people like you cannot cast spells is mainly because their body's magic power level is too low and cannot meet the minimum standard for casting spells."

"And this alchemical gadget I invented still requires a certain amount of magic power to release its magic, and the loss is even greater than when a wizard releases a spell himself."

Hearing Su Yu's words, Filch's face visibly darkened. It wasn't that he was blaming Su Yu; anyone would react this way when their dream was about to come true and then suddenly shattered.

However, Su Yu did not keep Filch hanging, but continued, "Of course, I have a solution for this now. Why don't you come over again tomorrow night, and we can try it out first."

Filch's emotions were like a rollercoaster ride, plummeting from the peak to the bottom and then climbing back up. His hands trembled with excitement as he bowed to Su Yu once more:

"I express my sincere gratitude to you, Professor Su Yu!"

After seeing Filch off, Su Yu sat at his desk, tapping his fingers rhythmically on the surface. The reason he was willing to help Filch was not because Su Yu was kind-hearted.

In fact, Su Yu had been considering the issue of the dud ever since he obtained the system, completed his first skill point allocation, and his strength was significantly improved.

As Gemma Farley said, there are at least three thousand Squibs in the UK. If she could really create an item that would give these people the ability to cast spells, it would be a steady stream of income.

Secondly, the Squibs will see him as a savior, and his prestige among them will reach an absolutely terrifying level.

If Squibs possess spellcasting abilities, can they still be called Squibs? Such a powerful force, if one could control it... heh...

Collecting his thoughts, Su Yu took out some materials and crafted a special magic wand. Its effect was the same as a magic pistol, but it could only cast one spell: Glowing Light.

However, it also has its advantages. Su Yu added a magic storage device to the wand handle, so that magic will be continuously output when magic is released. When the magic is fully charged, it can last for about two hours.

After experimenting with it, Su Yu felt that this thing was just a magical version of a flashlight, utterly useless, but it would definitely be enough to deal with Filch tomorrow.

Nothing happened that night. The next morning, Su Yu went to the library as usual to continue studying the basics of his Transfiguration.

What Su Yu didn't notice was that he usually came to the library to read books during the students' class time, but today was the weekend, and there were significantly more students in the library than usual.

Not long after I sat down, a voice suddenly came from the side: "Professor Su, I didn't expect you to be reading in the library. No wonder you're a Ravenclaw wizard."

Su Yu turned around at the sound, but instead of seeing anyone, he saw a tall stack of books. After the books were moved to the table, a little witch with tousled hair appeared.

"Oh, Hermione, it's nice to meet you here. How come you're carrying so many books?" Su Yu greeted her while surprised by the height of Hermione's stack of books.

Hermione shrugged and said like a little adult, “Magical knowledge is so fascinating. I’ve wasted too much time over the past ten years, and now I have to make up for it.”

"Among all the little witches I've ever seen your age, you are the most outstanding!" Su Yu praised sincerely.

Hermione picked up a copy of "Quidditch Skills and Guides," and while flipping through it, said, "Thank you for the compliment, Professor Su. What book are you reading?"

Curious, she leaned closer and discovered that Su Yu was only reading a basic Transfiguration book. She couldn't help but ask, "Professor Su, why are you still reading these basic books?"

Su Yu was a little embarrassed, and forced an explanation: "Actually, when you reach a certain level, and look back at those basic books, you will find that there are many details that you overlooked back then, which are the key to your continued improvement."

Hermione's eyes lit up, and she quickly pulled out a notebook to write down Su Yu's words, saying, "Professor Su, what you said makes so much sense. I will always keep it in mind."

"Do you like Quidditch?" Su Yu asked, trying to change the subject, as he looked at the book in Hermione's hand.

Hermione sighed and said firmly, "I don't like it at all, but we're starting flying lessons next week, and I've never ridden a flying broom before, so I have to do some research beforehand."

Su Yu then realized that two weeks had passed without him noticing, and the first flying lesson for the first-year wizards was about to begin.

Thinking about his LV3 flying skill, Su Yu felt it was necessary to try and earn some points for this specialized skill. So he said, "Flying isn't something you can learn just by reading a few books. After lunch, I'll take you to practice."

The two spent the morning reading in the library, then had lunch, and then Su Yu led Hermione to an open area outside the castle.

“Professor Su, shouldn’t we go to the storeroom and get a flying broom?” Hermione asked.

Su Yu then reached into his seamless extension bag and said, "Although I don't use flying brooms very often, I always carry one with me."

After saying that, Su Yu took out a Seven Stars Sweep from his pocket. It wasn't that Su Yu didn't have a Nimbus 2000, but the Nimbus 2000 was more suitable for racing, as it required a higher level of skill from the driver.

The Sweep series, as the oldest brand of flying brooms in the wizarding world, may not be as fast as the Nimbus 2000, but it is more stable and easier to control, making it more suitable for beginners and those with lower flying skill levels.

Su Yu placed the broom on the ground and instructed Hermione, "First, you need to stretch out your hand like this, and communicate with the broom using your thoughts. Up!"

With a whoosh, the flying broom on the ground was in Su Yu's hand. Su Yu then stepped onto the broom, pushed off the ground with both feet, and soared into the sky. He circled in the air and finally landed next to Hermione.

After getting off the broom, Su Yu felt something was off about his anus and couldn't help but complain:

"Honestly, I really don't understand why wizards would use brooms as flying devices. They're not only hard to control, but they're also almost uncomfortable. Even a flying carpet is much better than this thing."

As he spoke, Su Yu handed the broom to Hermione and then took out a magic flying carpet from his pocket.

Once unfolded, the flying carpet floats directly in the air, looking very luxurious. It not only has beautiful patterns, but also a small pillow for passengers to rest on. The edges of the flying carpet are decorated with golden tassels, making it very pretty.

Su Yu jumped onto the flying carpet and said, "Alright Hermione, you can start trying now. The flying carpet and I will protect you."

Hermione looked at the flying broom in her hand, then at the flying carpet Su Yu was sitting on. At that moment, she had the same thought as Su Yu: why do wizards use brooms as a means of transportation?

However, Hogwarts' flying class used flying brooms, so Hermione's complaints were useless. She had no choice but to put the broom on the ground, imitate Su Yu, concentrate, and shout, "Up!"

Unfortunately, the first attempt at brooms only lifted the broom a little bit before it lay back down on the ground. Su Yu smiled, realizing that this little girl's talent in flying was about the same as his own.

Hermione tried more than ten times before she finally got the flying broom into her hands. Then she mounted the broom and was about to take off when the broom crashed to the ground with a thud, and the little girl ended up landing on her bottom in a "sandslide" style.

Seeing Hermione's disheveled appearance, Su Yu had already taken out his reconnaissance guard and recorded a precious video.

Hermione was embarrassed. She got up from the ground, brushed the weeds and dirt off her wizard robes, and wanted to say a few words to Su Yu to save face, but she saw that the professor's face was contorted and his shoulders were shaking.

"Are you laughing at me?" Hermione asked, pointing at Su Yu, somewhat annoyed.

"No, I'm a professionally trained professor. No matter how funny it is, I won't laugh!" Su Yu quickly replied.

"Then why are you twitching?" Hermione persisted.

"Really? I don't think so!"

"You're clearly laughing at me; the corners of your mouth are turned up!"

"I wasn't laughing at you, I was just thinking about some happy things..."

Hermione eventually learned to use the flying broom and made her first flight, but she could only fly slowly in the air at about ten meters. She couldn't even think about doing things like aerial rolls, rapid ascents, or serpentine maneuvers.

Before leaving, Su Yu said, "I'll be there to check out tomorrow's flight lesson. Good luck!"

Hermione seemed still angry, gave a haughty snort, and turned to leave. Su Yu stroked his chin, wondering if he had been too nice to the girl, making her forget that he was her teacher.

That evening, Filch came to Su Yu's office again, dressed as meticulously as he had the day before.

In fact, Filch dressed like this all day, and he seemed to be in a good mood. When some young wizards broke the school rules, he just smiled and didn't scold them like he used to.

His smile was so eerie, and the fact that he didn't reprimand this unusual behavior only made the young wizards shudder.

At this very moment, in the common rooms of the four houses, people are discussing Filch's strange behavior. Some are even saying that Filch will sneak into the dormitories at night and kill the junior wizards who violate the school rules.

Su Yu was unaware of the rumors circulating among the young wizards. He led Filch into his office and, under Filch's expectant gaze, took out the specially made wand.

Su Yu said, "This is a specially made magic wand. Today, we'll do an experiment. Hold the handle of this magic wand and continuously input magic into it."

"Once this indicator turns green, you can turn on this switch. If everything goes smoothly, it will release a fluorescent flash. If not, then there's nothing I can do."

As Su Yu handed the specially made magic wand to Filch, he explained it to him in detail.

Filch was very nervous. Su Yu could see the sweat on his palms. He even wiped his hands on his crisp, straight trousers before carefully taking the wand from him.

Following Su Yu's instructions, Filch tried his best to control the little magic power in his body and channel it into his wand. The process was very long, and it was a torment for Filch.

About ten minutes later, the indicator finally turned green, and Filch breathed a sigh of relief. His back was soaked with cold sweat, and his forehead was also wet.

"Is...is it okay now, Professor Su?" Filch showed Su Yu the instruction disc and asked excitedly.

"Okay, turn on that switch!" Filch pressed his thumb on the switch, but didn't move it for a long time.