All the students began to move their hands, only Fang Yu was still sitting in his seat, frowning in thought.

Zheng Minghui heard Qi Liang tell him the story about Fang Yu, so he was quite interested in him, so he walked up to him and asked, "Do you have any questions?" ”

"No?" Fang Yu shook his head: "It's just that there is a lot of content on this handout, I want to read it again." ”

Hearing him say this, Zheng Minghui realized that he had turned the handout to the last page, and there were various marks drawn on it, obviously he had studied it carefully.

"You've read it all?"

"Yes."

"But just to build a basic space displacement technique, there is no need to look at the following additional parts."

"I want to build as well as I can."

"Okay, then you can keep thinking." Zheng Minghui shook his head.

As a teacher, he didn't want to dampen the students' enthusiasm for learning, although he felt that Fang Yu was a little too ambitious, but Zheng Minghui still decided to give him enough time to think, even if he didn't succeed in the end, don't dampen his enthusiasm.

Obviously, he hadn't heard of Fang Yu's performance in the formation class last time, otherwise he wouldn't have thought like this.

Ten minutes later, students completed their works one after another, and Zheng Minghui asked everyone to move the pocket cashier to the podium, and then demonstrate on the spot.

There are three main criteria for judging the quality of "spatial replacement", one is stability, the second is persistence, and the third is fidelity.

In other words, the "Space Displacement Technique" must be stable for a certain period of time and be easily undetectable for the spell to be valuable.

Most of these students have special talents in this area, and they have been taking classes for a while, so their foundation is not bad, and the works they handed in are also performing well.

"It's not stable enough, you see that it's only been more than ten seconds since I opened the drawer, and a small spatial crack has already appeared around the drawer."

"Your time is too short, less than thirty seconds, and there is almost no practicality."

"This work is good, but when it is opened, there is a distortion of light, and if someone else has experience, it is easy to see the clues."

Zheng Minghui was inspecting and evaluating some of the works, and during this time, he had been paying attention to Fang Yu.

The latter has already begun to act, but his approach is obviously a little different from what Zheng Minghui expected, he always feels that his hand is too complicated, and he is holding the storage cabinet with his eyes closed and muttering, not like he is chanting a mantra, but like he is talking in a double dream.

After another ten minutes, all the other students' works had been checked, and Zheng Minghui couldn't help but ask Fang Yu, "Fang Yu, have you finished it?" ”

"It's just done." Fang Yu opened his eyes, and a hint of excitement appeared on his face.

"Then take the podium."

……

In the eyes of all the students, Fang Yu moved his pocket storage cabinet to the podium.

Everyone knows that he is the best among this year's freshmen, so many people are looking forward to his work.

"Fang Yu, before I open it, I want to ask you first, are you sure about your work?" Zheng Minghui asked with a smile.

"It's okay." Fang Yu touched his head: "I have thought about it repeatedly, although the process is a bit repetitive, but there should be no problem." ”

"Looks like you're confident." Zheng Minghui smiled: "Then tell me, you put the eraser in that drawer, and which drawers did you replace the space?" ”

"The eraser is still placed in the top drawer, and each other drawer has been replaced, but it is not a simple replacement......"

"Not a simple replacement? What is that? ”

"Uh...... I don't know what this is, why don't you pull it apart and take a look, Mr. Zheng? ”

"Okay, then let's take a look."

Zheng Minghui laughed as he opened the top drawer, which was empty, and there was no eraser.

"Well, that's good." Zheng Minghui complimented, and then opened the middle drawer, but it was empty, and there was nothing.

He was stunned for a moment, then opened the third drawer, then the fourth, and then opened the sliding door on the left, and then the sliding door on the right.

There are no erasers, no erasers in every drawer......

The students below were already whispering, after all, the space displacement technique was not an invisibility technique, and the position of the eraser could be reversed, but it was absolutely impossible to disappear out of thin air.

In such a situation, the biggest possibility was that Fang Yu cheated, and he didn't put the eraser in it at all.

"Fang Yu, are you sure you put the eraser in?" Zheng Minghui couldn't help but ask.

"Of course, I'm sure."

"Are you sure each drawer has a space displacement applied to it?"

"Yes, I'm sure too."

"Can you explain the situation?" Zheng Minghui frowned and asked.

"Yes." Fang Yu walked up to the podium: "I heard from you just now that your hidden private money was discovered, so I thought about what would happen if I could superimpose the space displacement technique in multiple directions. ”

"Multiple multiple overlays?" Zheng Minghui's eyebrows raised: "This is relatively high-end content, you are too early to learn now." ”

"I also added a little bit of sequence sorting and excitation skills, this is something I learned in the formation class, I think it should be able to fuse it."

Zheng Minghui was a little speechless: "Classmate Fang Yu, after saying so much, can you explain where that eraser went?" ”

"It's in the top drawer."

"Then why can't I see it?"

"Because you're opening it the wrong way."

Fang Yu said as he stepped forward, opening and closing all the drawers in turn, repeating it several times, and then slamming open the top drawer.

Miracles happened, the half of the eraser was lying quietly in the drawer, as if it had been waiting for a long time.

There was a burst of exclamations from below, and all the students were in amazement at what they were seeing in front of them, was this a spatial displacement technique? Why is it different from the space replacement technique I learned?

"This ...... How so? Zheng Minghui's eyes widened in surprise: "How did you do it?" ”

"This is a multi-multinomial sequence of spatial permutations, which must be unraveled in a special order."

"In what order?"

"Up and down, left and right, left and right, BABA." After finishing speaking, Fang Yu added: "Teacher Zheng, next time you hide your private money, you can also try it like this, as long as you don't tell Teacher Qi the order of opening, I guarantee that she will never find out again." ”

Zheng Minghui was silent for ten seconds before he said with some embarrassment: "You have done a good job and I am deeply inspired, but can you lend me this work of yours to study." ”

"No problem, it's for Mr. Zheng."