In his books, Lena learned that the world's casting process is very detailed.

From the theory of modern magic, there are three steps to release magic.

The first step is to build a model. Each spell has its own unique model. The model is composed of nodes and the path of magic flow. The materialized magic model is the basis of the array. This step is also to determine the type of magic. Once the model is built, it cannot be changed unless the casting is cancelled.

The second step is to mobilize the magic. Here, you need to use your own magic to light up the nodes in the magic model and guide the magic from the outside to inject into it. The biggest difference between modern magic and ancient magic is here. In ancient magic, the magic used by the magic is completely supplied by the caster, so it has high reserves and control over magic You have developed a magic model. After using external drainage to build magic, people only need to have the magic to light up the node to release magic.

The third step is to cast magic in the traditional sense. Magic is shaped by the magic model, and finally interferes with reality to form various phenomena. In this step, the caster needs to do little, just keep the magic supply to make the magic work normally.

In ancient magic, what the mages need to do is to build the magic they want to cast in their minds temporarily. What they imagine is not the magic model, but more specific images, such as fire, such as frost. Therefore, the ancient successful mages need not only amazing magic reserves and control power, but also powerful imagination and understanding of everything It can't be achieved overnight.

There are many reasons for the failure of casting. Some people can't fully light up the node due to the lack of magic stock and control, while more people can't build a perfect magic model.

Take the simplest zero ring spell and fire spell as an example. The general basic model of this spell has six spell nodes. There are eleven magic channels connecting these nodes. You need to accurately capture the positions of these nodes, which requires quite high attention. Of course, for trained mages, this is quite simple.

Although such magic can only raise a handful of easily extinguished flames at the fingertips, it also achieves the purpose of interfering with reality.

Lightcraft is simpler, so even Dana, who failed to cast lightcraft, dare not say that she is a normal student.

What's more, the great destructive power caused by the failure of casting is absolutely beyond the reach of ordinary people.

"I'm sorry, Mr. principal. I'll try to make money to compensate for the damage. I didn't mean to."

Dana is like a cowardly hamster at this time, for fear that Lena will swallow him alive. The deeds of the headmaster have not yet spread among the students, so in Dana's consciousness, Lena is quite frightening.

"No, Mr. gross just needs to use his design talent, right?"

Lena has no intention of pursuing Dana's responsibility. Besides, he can't really let the student make money to compensate for these... Etc., how can the student make money?

Before he could think of some indescribable career, Lena remembered that Dana Christine was a part-time student who was in charge of cleaning and other chores.

"Ha ha, I don't know if it can be restored, but since Mr. Ian gray has given me this opportunity, I'll give it a try."

Gro grinned and saw that Lena didn't want to question the student, so he said.

"Well, Dana, I have several experiments recently. I may need your help. How about going to classroom 301 on the third floor of the teaching tower at three o'clock tomorrow afternoon?"

"Well, can I refuse?"

Dana said at once, embarrassing Lena.

"Can you give me a reason?"

"Because according to the routine, the powerful headmaster asked the female students to come to the classroom for independent counseling, and as a result, they took the opportunity to do some indescribable things..."

"wait a minute, where on earth do you see these things?"

Lena shook his head. What is the development of the cultural industry in the world? Why does any girl have knowledge beyond common sense?

"When cleaning, I can occasionally pick up a few novels."

It must have been Claire's lost treasure, said Lena, thinking of it.

"Miss Claire will be with you, too. You can rest assured."

"What if Mr. Claire has fallen, and is under your direction and trying to control me?"

"This kind of plot doesn't exist!"

Lena was ashamed. He felt it necessary for him to read what those girls' novels were about. No matter how he looked at them, it seemed that there were very heavy tastes hidden in them.

"Forget it, whatever you want. Only Dana, I'm studying new magic recently. I just saw your invitation because you were distressed by the failure of casting. If you refuse, I won't force it."

In fact, Lena is really ready to accept the spell assessment and become a ring mage. For this reason, his recent work focuses on the construction of the spell model in addition to the repair of the school.He can see at a glance that Dana's failure in casting is, in all probability, a failure in building a magic model. Judging from the amazing damage caused by that failure, she is definitely not a person with insufficient magic power.

So, Lena needs to verify his theory. Since he happens to meet Dana, he sends out an invitation. Of course, if the other party doesn't agree, he can verify it himself.

"Well..."

Dana hesitated. On the one hand, Lena's inherent impression worried her. On the other hand, the temptation to improve her casting was too great for her to make a decision.

"Go back and think about it. I'll be waiting in that classroom tomorrow."

Seeing this, Lena didn't force her to wave Dana away.

"Mr. Ian Gray's method of education is very unique. If my teachers were like that, I'm afraid I would continue to advance on the academic road."

Gro praised, a bit sincere is not clear.

"Thank you for your compliment, Mr. gro. I'd like to ask how long it will take to repair this tower according to the current progress."

"According to the damage, the construction period can be extended by three days at most, that is to say, it can be completed in ten days."

Gro thought about it and replied.

"That's great."

Lena thought it would last longer, but it seems that there is no big problem with the current damage. He relies on Coke's income, and now he has a considerable sum of money in his hand, which is not too difficult to rebuild the campus.

"After this observation tower, I think I need Mr. gro's help to repair other buildings."

"Yes, I can."

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