Dumbledore? He knows nothing about MC alchemy.

Tsk tsk tsk...

People are more likely to die than others...

Soon, several young wizards, mainly Ron, finished buying what they needed. Sirius paid the bill handsomely. After they walked out, he took out his wand again, put it to his lips and muttered something obscurely for a while, then swung the wand, and a small string of information flew into the clothing store.

"Next, Ron, you just have to wait. They will send the dress directly to Hogwarts before you need it."

Ron nodded gratefully but said nothing.

Several people returned to Privet Drive, and Kaisen teleported directly back to Hogwarts.

Unlike Sirius, as a responsible professor, he also needs to prepare the lesson plan for this semester in advance...

Well, actually, just now when he was returning to Baker Street, he saw a damn dump truck rushing directly into his living room. Of course, it would be very easy to repair it himself, just a few hours, but that would be a bit too conspicuous.

So he once again had to hand over the responsibility of taking care of the house to Sherlock's... live-in... friend, Mr. Peanut.

"Yes, please keep the lock for me and reinstall it on the door when the time comes. Also, don't let Sherlock open any weird little doors..."

Anyway, that's what he said to Peanut when he said goodbye to the house in tears.

Once again he returned to Hogwarts ahead of time... At this time there were only three living people in the entire Hogwarts, he was one, Hagrid was one, and Filch was one. As for Dumbledore, before his office exploded, he had been in a quantum superposition state of being in Hogwarts and traveling, and it was difficult for ordinary people to find him.

What's even more annoying is that Hagrid is now self-sufficient in his own hut, but Hagrid's cooking skills are really not good enough.

On the other hand, Filch can also be considered a socially anxious guy. He always eats in his office.

Kaisen, who had to eat three meals a day alone, had no choice but to make that fucking sound.

"Let school start soon!"

Merlin seemed to hear his prayer. Of course, it might not be Merlin. It might be some strange god, such as the Emperor, Azathoth... or even Om Messiah.

In short, with Kaisen's prayers, the young wizards once again boarded the train back to Hogwarts.

Dirty, dirty, dirty............

The first wave of little wizards who returned to the school pushed open the door of the auditorium, then stepped on a big hole and almost fell down.

After finally getting up, he didn't even have time to look at the damn big pit that tripped him, but instead stared blankly at the sky above the auditorium.

A giant gyroscope was spinning rapidly there, as if maintaining something.

"Wardfa? What is this?"

"Little wizard, stop swearing. And please lift your feet." Kaisen climbed out of the cave with a helmet on and a bit of resentment. The little wizard was confused when he saw him: "Professor? What are you doing in this cave? And that soft thing I just stepped on..."

"It's nothing. I didn't step on anything. Just go and wait for dinner." After Kaisen fooled a few little wizards away, he jumped out of the cave and blocked the hole again with a stone slab.

"Kasen... All I can say is that if you can't plug all the potholes before the dinner starts... you will have your salary docked. This is not a joke." Professor McGonagall said viciously.

"Oh, this is also a great cause for Hogwarts to stand up. Don't you think that if Hogwarts is attacked one day, you will wave your wand high and shout loudly for Hogwarts to move out?" Kaisen explained.

Professor McGonagall looked a little hesitant. "That's true, but we still need to maintain a good image in front of the new students. Actually, the new students don't need to worry. They will study here for seven years and will eventually know the excellent foundation of Hogwarts. The problem is that Dumbledore hired a foreign wizard as the Defense Against the Dark Arts professor this semester."

"It seems to be from Germany. If he sees that our Hogwarts Great Hall is in such a bumpy state, our Hogwarts will be disgraced!" Professor McGonagall said worriedly.

"OK...OK..." A drop of cold sweat unconsciously flowed down Kaisen's forehead. It was not because the hall was bumpy, but because Professor McGonagall didn't even know who the new Defense Against the Dark Arts professor was... Dumbledore didn't even tell her!

Then one thing is very interesting. He has already imagined that Professor McGonagall looked at the strange old man with an awkward but polite smile, and then waited until Dumbledore said the old man's real name...

Maybe I could even witness a full-scale fight between two masters of Transfiguration...

Who will I help then?

Hmm... Dumbledore introduced me to the wizarding world, gave me lots of goodies, helped me with my lawsuit against the Ministry of Magic, and treated me like his own son... Who should I help? It's so hard to choose...

Just help Professor McGonagall! Because the other old gang member will naturally have someone else to help him.

Kaisen happily continued to repair every aspect of the castle inside and outside. After all, it was not just Professor McGonagall... He also had to have some dignity...

Chapter 249 Who is Dumbledore’s favorite student?

Very quickly, well, actually it can't be said to be too fast. Anyway, after Kaysen filled the last hole in the auditorium, Grindelwald walked into the auditorium very politely, bypassed Professor McGonagall and sat directly in the seat of the Defense Against the Dark Arts professor.

Snape next to him also lowered his eyes and began to meditate. Just as everyone thought, he liked the position of Defense Against the Dark Arts professor, so he had a strange hostility towards every Defense Against the Dark Arts professor.

And he will not reveal this hostility unless the professor's own strength is really shitty or he has some personal grudge against him, the former is like Quirrell Lockhart, the latter is like Lupin.

And at this moment, the new Defense Against the Dark Arts professor sitting next to him...

Eh...........

Soon Dumbledore came in and sat on the chair in the middle. Kaisen looked at Dumbledore, then at Grindelwald...

Tsk tsk tsk, not even eye contact....tsk tsk tsk.

After a while, Professor McGonagall went out and quickly came back with a large group of young wizards. She then took out a piece of parchment and cleared her throat: "Sorting Ceremony..."

.....................

The sorting ceremony ended very quickly, and Dumbledore stood up with a smile on his face...the kind that he couldn't hold back his smile.

"Ahem, first of all, welcome all the young wizards to Hogwarts. Secondly, I would like to introduce to you this semester's new Defense Against the Dark Arts professor... Gellert Grindelwald!"

There was an eerie silence in the auditorium. Half of the professors in the professorial seats silently grasped their wands. Professor McGonagall stood in the middle of the auditorium, still looking at Dumbledore with a confused face, as if to blink if he said that you are being controlled.

At this time, Dumbledore felt a little uncomfortable in his eyes. He took off his glasses and wiped the corners of his eyes with his fingers. The next moment, a fiery red spell was reflected in everyone's eyes and flew straight towards Grindelwald who was sitting there calmly.

"Oh...Hogwarts' hospitality is really unique. Do you all have this?" Grindelwald just waved his hand casually, and the spell that Professor McGonagall had cast from zero frame was eliminated into thin air.

"Ahem, Minerva, this is a misunderstanding." Dumbledore stood up like a cabbage and acted as a peacemaker, but he didn't know that Professor Sprout and Professor Flitwick on the other side had begun to gradually distance themselves. They were no longer young and naturally could not be as brave magic assassins as Kaison and Snape.

They planned to create distance and then act as mobile artillery.

Apart from this, there was only one sentence that echoed in the minds of all the professors.

Dumbledore is really old and confused.

Dumbledore looked at this scene and waved his hand helplessly. A phoenix flew out of the void and swept away the professors and Grindelwald. Only Kaisen was left in the empty professor's seat.

"Um, professor, are you isolated?" A little Hufflepuff wizard ran over and asked.

"No, I knew the news in advance, so I was left behind to maintain your discipline." Kaisen shook his head and said.

"Then how are you going to maintain discipline, Professor?"

"When I ask you to eat, just use your mouth and hands." Kaisen set an example and picked up a lamb chop with tongs.

The little wizards also quickly followed suit and started eating.

Soon, Dumbledore came back with the group of professors, and then Kaisen saw that Dumbledore had a black eye.

"Um...what are you doing?" Kaisen asked.

Dumbledore looked over and asked, "What's wrong?"

Kaisen pointed to his eye sockets.

Dumbledore touched it and said, "Oh, I accidentally fell when I was walking there just now."

"???"

"I went to Asia this summer. There was a very powerful Taoist priest there who taught me a meditation method to prolong life. I accidentally got swollen."

"You've been out for less than ten minutes and you've found time to meditate." Kaisen asked confusedly.

"Well, yes, yes, don't ask." Dumbledore directly refused to communicate and started eating.

Kaisen shrugged, "Okay."

A brief dinner ended. The fact that Grindelwald was appointed as a professor was undoubtedly shocking. Even the other major event of this semester, the Triwizard Tournament, did not cause as much of a stir as it did.

As the young wizards left chattering, the professors looked at Grindelwald strangely and finally returned to their offices.

Of course, the same goes for the young wizards. Although Grindelwald is very old, he has appeared in history books after all, and basically everyone knows him.

That's why they didn't dare to talk about trivial things in the auditorium... They planned to go back to the lounge to discuss it.

After all, it is very impolite to say bad things about others behind their backs, so they choose not to let others hear it.

Grindelwald looked at Kaisen who was still showing off his fandom and smiled. Then he left and decided to enjoy his first night as a professor.

The next day...Kasen was called down from upstairs by Professor McGonagall before he even woke up.

"What happened?"

Professor McGonagall waved her wand to sober up Kaisen a little and said, "Today is Grindelwald's first class for the fourth-year wizards. I need a professor who can handle the class on his own to sit in on the class."

"Then why me?"

"Severus, Filius and I all have classes. Now, besides Dumbledore, you are the only fighting force left in the entire Hogwarts," Professor McGonagall explained.

"Actually, I don't have much fighting ability. I'm just an alchemy professor. I don't have as strong power as other professors." Kaisen said as he was dragged away by Professor McGonagall.

"I'm sorry, Kaisen, don't underestimate yourself. I heard that you single-handedly dealt with more than 30 Death Eaters on the day of the Quidditch World Cup. Your ability is unquestionable. The young wizards at Hogwarts are being tortured right now. It's time for you to monitor Grindelwald... just in this class!" Professor McGonagall said earnestly.

"Just this one class?" Kaisen asked.

"Just this one section!"

"Okay." Kaisen sighed and went upstairs again to change his clothes. Ten minutes later, he was sitting at the back of the Defense Against the Dark Arts classroom, eating breakfast while watching the little wizards sitting upright in their seats.

Soon Grindelwald arrived.

"You all probably know my name by now. I will be your Defense Against the Dark Arts professor for the next year, or perhaps longer."

"Now I would like to ask the first question of my professorial career."

"Everyone in the classroom..."

"Who is Dumbledore's favorite student?"

.................

Please give me a gift...

Chapter 250 Grindelwald's First Lesson

..........

"Professor, why do I feel like the atmosphere is a bit weird?" Harry, who was sitting in the last row, asked Kaisen, who was also sitting in the last row, in a low voice.