The Dementors broke into the school without any warning, making Dumbledore furious. He didn't expect that such a thing would happen just because he was out for a day.

After receiving the news, Dumbledore immediately put down what he was doing and went to the Ministry of Magic to find Fudge.

No one knew what the two talked about in the Minister's office, but by Monday, most of the Dementors stationed at Hogwarts had been called back, leaving only the last dozen or so guarding the necessary entrances.

In addition, there was no report on this matter in the Daily Prophet, as if nothing had happened.

However, the students at Hogwarts did not know this, and no one noticed that the number of Dementors had decreased a lot.

After the weekend, the castle was still bustling and busy. The only change was probably that Harry's broom was broken.

However, apart from the Gryffindor students, not many people care about this.

And Kyle... The dragon scale badge has become popular again. The stock that Rodan had just delivered a few days ago was sold out, and most of the more expensive dragon tooth ornaments were also sold.

But these are all trivial matters and not worth mentioning.

The first class in the morning is Defense Against the Dark Arts.

Professor Lupin didn't look very well. His robe was baggy and he had dark circles under his eyes. He looked like he hadn't slept for several days.

But when the students came in, he still smiled.

"Today we are going to learn a very useful little skill, the search spell."

Professor Lupin said in a weak voice: "Using this spell, you can easily find creatures hiding in the dark, or magical objects, making them invisible.

If you are in ancient ruins or a jungle full of dangers...it is undoubtedly crucial to know what is around you in advance.

It allows you to avoid the Hinckley Punk hiding in the water in time, and also makes you alert to the evil bird in the treetops.

Now, everyone get your wands out..."

According to the original plan, Professor Lupin was going to take the fourth graders to an outdoor class. Two weeks ago, he had prepared a large open space next to the Forbidden Forest, where the students were to use search spells to find the Bowtruckles and fairies hidden there.

But plans cannot keep up with changes. He certainly does not have the energy to take the students outside the castle now. He can only practice spells and gestures in the classroom for the time being.

"Let's talk about it in the next class." Professor Lupin thought to himself.

But after getting used to Professor Lupin's rich and interesting class content, simply practicing spells seemed a bit boring.

And the search spell is different from other spells. Without a target, it is difficult to see whether you are doing it correctly.

After about half a class, the students began to feel bored, and the chanting and hand gestures gradually became perfunctory.

"professor……"

At this moment, someone suddenly asked: "Do you know Dementors?"

Everyone suddenly became alert and looked at Professor Lupin with burning eyes.

This topic is obviously much more interesting than waving a magic wand in a boring way.

"Of course, I know." Professor Lupin said, "Although I was not in school last Saturday, I also learned about what happened from other professors.

Dementors are one of the most evil things in the world, they feed on every good emotion, every happy memory...

It won't be long before anyone who stays with them goes mad, until they become like them, soulless and full of evil."

"Then why do Dementors go to the stadium?" someone asked.

"I guess I'm hungry."

"Professor, can you teach us how to resist it?" Another student said, "The Patronus Charm that can conjure up silver animals."

"That's very difficult. You won't learn it until you are in seventh grade."

Professor Lupin glanced at him and continued, "And Professor Dumbledore has already solved this problem. Don't worry, those Dementors will never dare to enter the school again."

"But professor, there are always times when the headmaster is away." The man said, "Just like last Saturday, if the Dementors suddenly break into the castle when the headmaster is away, we must be able to protect ourselves."

"This..." Professor Lupin frowned, "But this is seventh grade content. Isn't it too early for you to learn it now?"

"No problem, Professor." Kyle said suddenly, "We can definitely learn this spell, I promise."

"Yes, yes." Mikel said quickly: "Kyle has already learned it, so we will have no problem too."

Professor Lupin opened his mouth. He wanted to say that Kyle was just a special case and that didn't mean anything, but he swallowed the words back.

"There is not enough time." He said, "To learn the Patronus Charm, in addition to having to accurately control magic power, it also requires a high level of emotional control. It is simply not something that can be learned in half a class.

But if it takes too long, it will delay your final exams and even your fifth-year OWLs, so it’s better to wait until you’re in seventh year.”

"But, Professor, can you teach us until the seventh grade?" A weak voice came from the corner.

Professor Lupin discovered with embarrassment that he really couldn't, because the employment letter Dumbledore gave him only stated a one-year term.

Of course, he wasn't the only one like this, all previous Defense Against the Dark Arts professors were only one year.

According to gossip from professors, there is a pile of such employment letters in the principal's office, as many as the admission letters for new students. When you need them, you just need to write your name on them.

I don't know if it's true or not...

Seeing that Professor Lupin didn't say anything, there was another round of discussion.

"Professor, I really want to learn this..."

"We promise to study hard..."

“Even if we are asked to write two rolls of parchment as homework in the future… well…” Before he could finish his words, someone next to him covered his mouth.

This really won’t work.

"If you're worried about not having enough time..." At this time, Kyle said again: "You can learn from other professors and start your own club."

"Club?" Professor Lupin lowered his head, thinking about the feasibility of this proposal.

"Yes," Kyle said, "After what happened last Saturday, I believe that many people in other grades must want to learn the Patronus Charm...

"It's always a good thing to learn one more spell. As long as we gather all those who want to learn this spell together in the name of a club, you only need to spare two hours a week."

Professor Lupin thought for a moment and then nodded thoughtfully.

"The club is indeed a good idea, and it won't interfere with your normal study time...but with seven grades participating together, wouldn't the number of people be a bit too much?"

He frowned slightly and said, "Besides, I don't think we can find a classroom that big at Hogwarts."

"Of course, isn't it the auditorium?" Kyle smiled and said, "You probably don't know yet, but last school year, Professor Lockhart applied to the principal to set up a duel club in the auditorium, and almost all the students participated.

We are both Defense Against the Dark Arts professors. If he can do it, then you can do it too."

(End of this chapter)