"Gollum!"

Feeling the blazing breath coming to their faces, everyone present couldn't help but swallow their saliva, and they were all shocked by the momentum created by Ye Siyu.

"Of course, this is just a simple demonstration of the fire elemental magic, and in addition to fireballs, you can also shape flames into raindrops." , Ye Siyu didn't care how shocked everyone present was, and continued to cast the next magic.

As soon as his right hand was raised, a fire cloud appeared above his head, and the rain condensed by drops of flames came down, instantly forming a sea of fire in the area in front of Ye Siyu's eyes.

"Is this the magic of war?" , Dumbledore muttered with a serious expression.

Ye Siyu's elemental magic, which was completely different from the magic he had learned before, had a great impact on him, and it was the first time he had seen magic with such a huge destructive power, just like a missile invented by humans.

As a powerful person in the magic world, he was familiar with all kinds of magic, and knew very well that none of the current magic could cause damage that could be compared to the elemental magic cast by Ye Siyu.

The previous unforgivable spells were completely played in front of Ye Siyu's elemental magic, and there was no comparison at all.

At this time, Dumbledore regretted letting Ye Siyu come to Hogwarts as a teacher.

He could imagine that if such magic spread, the balance between the magical society and ordinary human society would likely be upset, causing all kinds of situations.

In the wizarding world, there is no shortage of his former lover, Gellert Grindelwald, and his student Voldemort, who felt that magic should not be hidden, but should lead society as a master, otherwise countless people would not have responded to Voldemort's call and become Death Eaters.

But even so, the vast majority of people do not dare to do this, but obey the rules of the wizarding world, and the reason why they do this is not because of love, nor because of the rules, but because of lack of strength.

They don't have the strength of Gellert Grindelwald and Voldemort to rival the entire wizarding world, nor do they have the charisma that can attract many people to join them, so most people don't really do anything until they die, at most they are a mouthful.

And ordinary humans are not powerless, guns that can easily take lives, missiles that can easily blow up a building, nuclear bombs that can easily destroy a city, and countless weapons that can destroy the world have been created.

Once the wizarding world conflicts with modern society, the people in the wizarding world may gain the upper hand in a short period of time, but magic is indeed magical, but it is not strong enough to easily destroy human society, plus the vast majority of people in the wizarding world are not pure-blood wizards, many people have many Muggle relatives and friends like Hermione, they will never let the dark wizard rule the world, and with the passage of time, it must be the wizarding world that fails.

He saw through this and supported the rules set by the Ministry of Magic, and he was even one of the makers of these rules.

However, Ye Siyu's elemental magic is different, a glimpse of the whole leopard, although Ye Siyu only shows a small part of the magic, but as a well-informed magician, he can see how terrifying Ye Siyu's magic is.

Once this magic was popularized, Dumbledore believed that there would definitely be many dark wizards willing to learn it.

He also finally understood why Ye Siyu called elemental magic war magic, this is the magic derived from battle, and he can imagine how amazing the damage this magic caused in battle.

"Headmaster, is it really good for students to learn such magic?" McGonagall, who was next to Dumbledore, worried, and she also saw the impact that Ye Siyu's magic could cause.

Dumbledore didn't answer, for he didn't know if he had made the right decision.

When Dumbledore and the other old magicians had a headache for Ye Siyu's elemental magic, Ye Siyu continuously cast the elemental and advanced magic of different elements, which caused a great shock to everyone present, especially those male students, who cheered even more.

If the gun car ball is the three things that are most exciting for boys in modern society, then magic, broomsticks and Quidditch are the things that make boys in the wizarding world the most excited.

And the destructive power of the magic that Ye Siyu is showing now can definitely cause adrenaline rush in men.

"Professor Ye, is this elemental magic?" Hermione asked with some disappointment amid the cheers of the boys.

Although some women like guns and cars as much as men, the vast majority of women prefer the latter two, and as for the first one, most girls don't like it very much.

"Of course, it's not just that, in addition to the magic I just showed for combat, there are many other magic similar to the mirror space I first cast, like this arcane magic mage's hand." , Ye Siyu condensed his magic power to form a huge mage hand while explaining, and then made various gestures in front of everyone.

"Wow!"

Ye Siyu's magic once again caused everyone's exclamations, and they once again realized the magic of the elemental magic that Ye Siyu taught.

"Ahem, Professor Ye, it's not early, and the students are almost at the time of the official class, so let's end this show." After Ye Siyu showed a few more daily spells, Dumbledore interrupted.

Hearing Dumbledore's words, Ye Siyu nodded, and immediately withdrew the magic, making the auditorium change back to its original state.

"Headmaster, may I ask one more question?" At this time, Hermione spoke again.

"Miss Granger, it can only be one question." , Dumbledore agreed.

"Professor Ye, where's your wand?" , Hermione immediately looked at Ye Siyu and asked.

As soon as Hermione's question came out, the students present also noticed this problem, they had always felt that Ye Siyu was a little strange when he was casting magic, but where it was strange, they couldn't say it for a while, and now after Hermione's question, they also found out where the strangeness was, that is, Ye Siyu didn't hold a wand when he cast magic.

When she was in the Cauldron Bar before, Hermione had heard that Ye Siyu could cast spells without a wand, and she was very curious about this legendary ability, and now that she saw Ye Siyu, of course she would not miss such an opportunity to understand.

"Miss Granger, this question involves casting spells without a wand, and it's hard to explain in a short period of time." , Ye Siyu shook his head and said, he noticed that Dumbledore's eyes had changed a little after he showed the elemental magic, and he knew that he couldn't continue to show it.

Hermione also knew that her question was too abrupt after hearing this, and immediately apologized: "Professor, I'm sorry, I'm just curious. ”

"It's okay, I'll explain it in class on this issue." , Ye Siyu said with a smile.

"Thank you Professor Ye for your presentation, the opening ceremony is over, you can go back to rest and prepare for the next class." , Dumbledore announced a few words, and then motioned for Ye Siyu to follow.

At the beginning, Dumbledore's arrangement for Ye Siyu was to have classes twice a week in each grade, but after seeing the magic displayed by Ye Siyu, Dumbledore felt that he needed to modify Ye Siyu's class schedule and needed to reduce the curriculum.

He couldn't let elemental magic flow until he knew whether it would jeopardize the balance between the wizarding world and modern society.

In the end, he decided that Ye Siyu had changed from teaching each grade every week to only teaching the second year of Harry and the others, who had just come into contact with magic but were not familiar enough to a certain extent, so that he could not only observe Ye Siyu's elemental magic but also avoid the widespread outflow of elemental magic.

Ye Siyu had no objection to Dumbledore's decision, but raised his hands and feet to welcome this decision, his original purpose was not to teach, but to investigate, and now this course arrangement can give Ye Siyu more time to explore Hogwarts School, how could he object.

After deciding on the course arrangement, Ye Siyu spent the next few days wandering around the school alone, further familiarizing himself with the location of Hogwarts, and this day was also the time for him to officially teach.

Because of the opening ceremony, the students he met on the road would greet Ye Siyu and express their willingness to follow Ye Siyu to learn magic.

In addition to the systematic education method of the school in the world of Harry Potter, the most common teaching method is family inheritance and one-to-one master-apprentice inheritance.

Although the Ministry of Magic stipulates that underage wizards cannot use magic until the age of eleven, most wizarding families ignore this rule, and many students of wizarding families will systematically learn magic at home before entering school, and even use magic as early as possible.

For example, Koizumi Hongzi is a typical representative, according to her, she did not go to magic school, and was taught by her family.

Entering a magic school to study is mainly to cultivate contacts, otherwise the accumulation of knowledge of a single wizard family is definitely not comparable to the systematic education of a magic school.

And apprenticeship is very common in the wizarding world, some capable wizard families will help their children find a teacher not long after they are born, and the apprentice here is not a teacher who teaches for a few years like a magic school, but a teacher who follows the teacher until he becomes a teacher.

There are many smart people among the students, and they can see at a glance how much potential the elemental magic taught by Ye Siyu is, it is a real thigh, as long as they hug it, it is definitely promising.

Ye Siyu refused all these people's requests, he didn't have time to be a master, of course, if the other party could contribute some magic props or something, it was not impossible.

Suddenly, Ye Siyu had a bit of a brainstorm, he felt that he could use elemental magic to exchange some magic items with some wizard families, so that he didn't need to risk being attacked by the magic world to collect magic items.

While Ye Siyu was thinking, he had already come to his classroom, the Defence Against the Dark Arts classroom on the second floor.

Seeing Ye Siyu's arrival, the originally noisy classroom instantly became quiet, and everyone sat upright, leaving a good impression on Ye Siyu, the teacher, as much as possible.

"Ladies and gentlemen, although this is the first class, I don't think I need to introduce myself again, so let's start the first class directly, today's lesson is very simple, you ask me answers, you can ask all the questions you want to ask about elemental magic." , Ye Siyu was not ambiguous, and went straight to the point, "Who will ask the first question." ”

"Me, me, me!"

"I asked!"

The students immediately raised their hands and wanted to be the first to ask questions.

"Miss Granger." , Ye Siyu pointed at Hermione and said.

Hermione, who was named by Ye Siyu, smiled happily, stood up with a swish and asked her own question, "Professor Ye, don't we have any books for learning elemental magic?" ”

For a scholar like her, books are her favorite thing, and now Ye Siyu has started teaching directly, and has not sent books or asked them to prepare books, which makes her feel very uncomfortable.

"No, elemental magic can't be learned from books." , Ye Siyu shook his head and said.

Elemental magic is a magic modified by Ye Siyu according to the idealistic magic of this world, and there is no specific spell, the main thing is to look at his own will, books are at most some references, and there is no decisive role.

"Next, Mr. Potter." After Ye Siyu finished answering Hermione's question, he pointed at Harry and said.

"Professor Ye, what is a wandless spell?" Harry said his question with a look of surprise.

As soon as Harry's question came out, everyone looked at Ye Siyu, their ears pricked up high, for fear of missing a word.

The ability to cast spells without wands has become the most concerned issue in Hogwarts schools after the opening ceremony, except for elemental magic, and they have also asked teachers in other subjects, but those teachers have only read about wandless spellcasting like them, and they have only read it from books, and they can't even understand it to a half-understood level, so how can they answer their question, which makes this question more and more people pay attention to.

"Before I answer this question, let me ask you a question, can anyone tell me what the wand does?" , Ye Siyu did not answer immediately, but asked with a smile.

"The tools used by wizards to perform magic are made of wood wrapped in magical materials......", Hermione, as a top student, said little by little about the knowledge of wands.

"Miss Granger, I'm asking about the role of wands, not information." , In the middle of Hermione's speech, Ye Siyu interrupted.

"Zuo...... The effect is ......", Hermione, who was interrupted, panicked, kept thinking back to the books she had read, trying to find the answer from them, but after thinking about it for a while, she couldn't think of a reason.