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

Harry understood these principles, but he was still preoccupied, unsure how to face Snape later.

For the next week, Harry behaved very strangely in Potions class. Even when Snape was sarcastic towards him, he remained silent, which made Snape feel somewhat uncomfortable.

Su Yu was completely unaware of this. Having completed the side quest of Transformation, he was now fully immersed in his research.

The magic server might have to wait a while longer, but the semi-automatic casting press is already showing signs of life, and Su Yu is already getting impatient.

On Friday night, Snape knocked on Su Yu's door. He had a gloomy look on his face and placed a box and a bag of Galleons on Su Yu's desk.

Looking at Snape's gloomy face, Su Yu joked, "Don't be like that, Snape. I'm the one who defeated that troll, and I deserve the materials. You wouldn't be so stingy, would you?"

"Did you say something to that child?" Snape stared at Su Yu and asked, enunciating each word clearly.

"Which child?" Su Yu feigned ignorance.

"Harry Potter!"

"Oh, him? He didn't say much, just some things about the conflicts we had with his father when we were kids!" Su Yu said, trying to sound casual.

Snape's eyes flashed with an "I knew it" look, then he said, irritated and slightly accusatory, "How much did you say!"

"Don't worry, I didn't mention Lily, I only talked about our relationship with the raiders..."

Before Su Yu could finish speaking, Snape interrupted, "Don't mention her name! Listen, Su, this has nothing to do with you, and I hope you won't say anything more to Mr. Potter."

Su Yu was also a little angry: "Do you think I wanted to say this? You were careless and Harry saw your injured leg. They came to me for help, saying you were going to steal things from the fourth floor. Do you expect me to just watch you be misunderstood?"

“I don’t care!” Snape said.

Su Yu retorted, "Don't care? Don't care about what? Don't you care about yourself? Or don't you care about Lily? You clearly care about that child, so why do you have to pretend to hate him?"

Snape was somewhat embarrassed and angry, staring into Su Yu's eyes: "This is none of your business. In short, don't get involved in this anymore, and don't say anything more!"

After saying this, Snape flicked his robes and left like a giant bat, leaving Su Yu shaking his head helplessly.

I checked what Snape gave me. There were no problems with the Galleons; there were exactly 100, no more, no less. But the troll's blood seemed to be much more than I expected.

Moreover, the blood was clearly purified, removing impurities to make it more suitable for alchemy.

The troll's bones had also undergone rigorous processing, with no flesh or fascia on the surface—they were practically perfect. Seeing this, Su Yu couldn't help but smile bitterly.

Sigh, Snape, proud and stubborn all his life, is still the same as before. He always does his best in these details, but never says anything. It's such a headache.

On Saturday, Su Yu returned to Hogsmeade Village to discuss the transfer of property with a goblin named Herd.

Su Yu has decided to open the magic phone manufacturing plant in Hogsmeade Village, where there are a large number of wizards and fairies.

These are all excellent wizarding laborers who can become his employees or his clients.

There are many problems in building a factory. The first thing to solve is the factory building. At first, Su Yu thought about renting a factory building to use first.

But Snape told him that most of the properties in Hogsmeade belonged to goblins, and these greedy creatures might suddenly raise the lease renewal price once they saw his business was thriving.

Even worse, some might kick you out and open a shop exactly like yours.

Furthermore, landlords may impose restrictions on renovations to rented properties, which could hinder the expansion of the Seamless Extension Spell and the safety of the factory.

So Su Yu took this advice and decided to buy real estate instead. After all, he had accumulated a lot of Galleons in the United States over the years, and there was no interest in keeping them in Gringotts, so converting them into real estate was a good idea.

Houses in Hogsmeade are very expensive, and new houses have been prohibited there for over 100 years.

Because of the existence of the Seamless Stretch Spell, theoretically, even if you only have a toilet, you can expand it into a stadium.

This has led to exceptionally high house prices in Hogsmeade, reaching as high as 500 Galleons per square meter at its peak. Although prices have fallen somewhat, the average price is still above 300 Galleons.

Even using the limited-time offer of 5:1 exchange rate for new students, it's still 1500 pounds. Comparing that to the exchange rate between pounds and yuan, it's roughly 1.5 yuan per square meter. And this was in 1991! It's absolutely terrifying.

Su Yu had his eye on a shop on the main street. The reason he chose such a good location was because Su Yu wanted to do more than just set up a factory there.

He also wants to set up a flagship experience store so that these conservative, stubborn wizards who look down on Muggles can truly experience the convenience of the magic phone.

Although Hed was a fairy, he was very knowledgeable about wizarding etiquette. He wore a well-fitting suit and, despite his short stature, exuded an extraordinary air.

Upon seeing Su Yu, Hed gave a standard wizard's salute and said with a smile:

“Dear Professor Su, look how good the location of this shop is. It’s right across from the Honey Duke Candy Store, to the east is the flagship store of Nimbus Flying Broom, and not far to the west is the Three Brooms Bar.”

"No matter what you sell here, you can quickly gain brand recognition throughout the UK, so you don't have to worry about sales."

Su Yu mentally translated the rhetoric: "This place is great! Expensive! Pay up!"

Su Yu wasn't in a hurry. He patted the coal ball in his arms. The coal ball had just used its mind control ability to know that Hed was hiding something. It has to be said that with a magical creature like the coal ball around, negotiations become exceptionally simple.

So Su Yu asked, "No rush. Actually, I'm quite curious. Since this shop is in such a good location, how did its previous owner go bankrupt?"

Heard was taken aback for a moment, then said, "That's naturally because he mismanaged it. This used to be a wand shop, you should have heard of it, Anthony's Wands. They used to have a reputation similar to Ollivanders."

"But starting 30 years ago, their new generation of heirs began to use cheaper materials to replace the original precious magical materials, and at first no one noticed."

"But as he went further and further, wizards who bought wands from this shop began to experience uncontrollable magic, even explosions and backlash against their owners."

"As the situation worsened, the Ministry of Magic intervened in the investigation and eventually exposed their evil deeds to the world."

“When Anthony realized his scheme had been exposed, he fled and disappeared, leaving the property ownerless. I then obtained the property rights through legal means.”

Su Yu raised an eyebrow: "So for the next 30 years, this shop just stayed empty? No one ever opened another shop there?"

"Ah... well... there were a few more shops after that, but they all went out of business due to poor management. But that had nothing to do with the shops themselves; it was all a problem with their business strategies!" Hed hurriedly explained.

From the message that Coal Ball transmitted to him through the mental link, Su Yu knew that this shop had changed owners six times in the 30 years that Heder mentioned.

Each shop doesn't last more than a year. It's said that things always mysteriously go missing from their shops, causing them to go from doing well to losing money by the end of the month.

Over time, everyone in the village learned about the shop's strangeness, and no one dared to open a shop there anymore.

Su Yu knew far more about the property than Heder. He had secretly entered the house several times, used a number of detection instruments, and discovered that there was a hidden basement beneath the bedroom.

Su Yu felt that the strange events that followed must be related to this basement. If he could solve the strangeness of this property, it would undoubtedly be an excellent shop.

Even if you can't solve it yourself, you can ask Dumbledore for help. I believe that the greatest wizard of our time can definitely handle this little problem.

Su Yu continued calmly, "Alright, let's talk about the price. If you're sincere enough, I might consider it."

“350 Galleons per square meter, that’s the cheapest price for a shop on this street. Trust me, Professor Su, my sincerity is as boundless as the ocean,” Hed said sincerely.

Just as Su Yu was about to haggle, his phone vibrated in his pocket. Su Yu subconsciously took it out and his expression changed drastically. He said to Heder, "Excuse me, Mr. Heder, I have something urgent to take care of."

After saying that, Su Yu waved his wand, activated Apparition, and arrived at the outskirts of Hogwarts Castle. He took out his magical phone and sent a message to Dumbledore: "Professor, are you in the castle?"

In Hogsmeade, the goblin Herd looked ashen-faced, his heart filled with mixed emotions. Thirty years had passed, and finally someone wanted to buy the shop. But what had he done? The price he quoted had scared the customer away.

No, I have to write to Professor Su. I can sell this shop to him for 250 Galleons per square meter... no, 200 Galleons per square meter.

With these thoughts in mind, Hurd hurried home. He had to sell the property as soon as possible. For the past 30 years, Hurd had hardly had any cash flow, and he never wanted to live like that again.

Su Yu never expected that his action could save him 150 gold gallons per square meter, but he really wasn't in the mood to think about that right now.

Just now, he received a message from Tonks: "Northumberland, help!"

After spending a month together, Su Yu developed some liking for Tonks and gained a certain understanding of him. He knew that given Tonks' personality, he would not send him such a message unless he was in dire straits.

But could he handle such a desperate situation? When Tonks goes on a mission, Kingsley will definitely be leading the team. If even Kingsley can't handle it, what use would he be?

The last battle with the giant made Su Yu realize his shortcomings. As an alchemist, he was better at preparing for battles in advance. Unexpected battles like this were completely out of his control.

So Su Yu decided to ask Dumbledore for help, but after waiting outside the castle for a long time, Dumbledore did not reply.

Going to the castle to find Dumbledore at this point would definitely waste a lot of time, and Dumbledore might not even be in the castle.

What if something happens to Tonks because of this delay?

No, no, in the original story, Tonks survived until the final battle, how could something happen to him at this time!

But my arrival has already affected her. What if this accident was caused by my butterfly effect?

In that short minute, Su Yu thought of many things and found many reasons not to go, but whenever she thought of Tonks' smiling face and her hair that changed color with her mood, Su Yu felt inexplicably heartbroken.

Finally, he made up his mind, took out the Kawasaki ZXR250 from the seamless stretch bag, set his target, and soared into the sky. Tonks, he had to save him!

Su Yu didn't know exactly where Northumberland was, but he figured it should be near Northumberland National Park, so heading in that direction would definitely be the right thing to do.

To prepare for any unpredictable situations that might arise, Su Yu entered the suite inside the motorcycle's storage compartment and used all of his remaining two general skill points on magic, raising it to LV8.

Each upgrade after LV7 requires one more skill point than the previous one. Su Yu felt it and found that the increase in magic power was the same as before, double that of the previous level, but the magic power itself seemed to have become more solid.

I tried casting a few spells, and the effect was much better than simply increasing magical power. For example, the flames of the Fire Spell turned into a hotter blue, and the ropes of the Binding Spell became a tougher material.

This gave Su Yu even more confidence in the unknown he would face later.

With the speed of the modified Kawasaki ZXR250, he arrived at the outskirts of Northumberland Forest Park, a small town called Minneapolis, in just half an hour.

Su Yu did not choose to enter the city. He circled in the air and spotted a tour guide leading tourists to enjoy the local scenery. Then he controlled the motorcycle and swooped down at high speed.

Upon approaching, Su Yu cast a Confusion Spell, dispersing all the tourists and landing next to the tour guide.

The tour guide was a middle-aged man in his forties, wearing an old suit and slightly overweight. He was giving a passionate explanation, but when he saw the man who suddenly rode down from the air on a motorcycle, his mind went blank.

"Excuse me, do you know where Northumberland is?" Su Yu asked.

The tour guide nodded subconsciously, pointed in a direction, and said, "Go that way, it's about thirty kilometers away."

"Thank you!" Su Yu said, taking out a Galleon and flicking it with his finger, sending it straight into the tour guide's breast pocket.

The engine roared the next moment, and Su Yu's motorcycle soared into the sky again. In the instant it flew away, a spell struck the tour guide, causing him to forget everything!

Afterwards, the tour guide couldn't remember why he had a strange gold coin in his pocket.

Su Yu asked three more times and finally arrived above the town of Northumberland. He put away his motorcycle in mid-air and used Phantom Teleport to appear in the town.

The moment he landed, Su Yu opened the seamless stretch bag at his waist and took out five reconnaissance guards.

With a casual toss into the air, the red tentacles on his eyeballs twisted and combined, transforming into tiny wings. After activating invisibility, they fluttered around the town.

Judging from the footage transmitted back by the reconnaissance guards, the town seems quite normal, with no supernatural occurrences, except that several families are holding funerals at the same time.

"Have you seen this person before?" Left with no other option, Su Yu resorted to the oldest method: finding a photo of Tonks in his phone's album and asking the owner of a fruit shop by the roadside.

"Do you want to buy fruit?" The shopkeeper didn't answer, but asked instead.

Just as Su Yu was about to pay, Coal Ball relayed the message: "He doesn't know!"

Su Yu was so angry that he wanted to bite the boss. He asked several people and even went to the local police station, but still couldn't find any news about Tonks.

Su Yu's heart sank deeper and deeper. Could something really have happened? Su Yu swore to God that if Tonks could be safe this time, he would definitely research and develop a location tracking function for his phone when he got back.

Suddenly, Su Yu remembered something. Given Tonks's personality as a disguise master, she definitely wouldn't use her usual appearance when going on a mission.

After searching through his phone for a while, he finally found a group photo of Tonks and his Auror squad in the chat history. He then asked the fruit shop owner from the beginning again, "Have you seen these people before?"