After a long conversation on the other end of the phone, the old man walked to another desk in the corner and took out a stack of drawings from a drawer.

"This is Tesla's Dharma-Origin Pulse Bomb." The old man said.

Pulse Bomb! If it is a principle similar to electromagnetic pulse, then it is possible to make a high-intensity source pulse that can also kill the circuit......

"Thank you, Mr. Mozi!" Wen Cheng was delighted.

If it is the work of Tesla himself, it should be impeccable.

"Don't be too happy, I heard him say that the first few tests were duds." Mozi said lightly.

"That's ......," Wen Cheng lowered his shoulders.

"But it worked last time...... Mozi said hesitantly.

"What effect?" Wen Cheng looked expectant. Even a little effect is enough.

"Think about it, the last time I tested it for the tester, it didn't destroy the robot, but the tester's circuit collapsed......" Mozi stroked his thin white beard and said lightly.

"So the magic source pulse is actually destroying the magic circuit?" Wen Cheng was stunned.

"No, no," Mozi waved his hand, "Tesla just said that he has made improvements to the last accident, and now there is no doubt about the circuit."

"That...... Is there a test?"

"It's not tested yet, but he says it's fine."

Wen Cheng hesitated for a moment, "Is there anything else?"

"No, why don't you try it?" The old man shook his head.

He said there was nothing wrong with it? How should this sentence be understood? If the circuit can be destroyed, it is not surprising, but there is no way to know what will happen to the circuit of the magician, and I always feel that something is wrong...... I said I was trying, but if I failed, I was doomed......

Anyway, I took it first, but I really can't study and improve it slowly.

Wen Cheng took a deep breath and stepped forward, and the old man suddenly withdrew his hand and put the drawings on the table beside him.

"There's only one copy of the drawing, it's not for you to take away, you have to remember it here." The old man pointed to the porcelain ball on the shelf again, "You can take the blank with you."

After all, in the loop, there is no other way than to remember it in your head.

"Understood!" The boy nodded vigorously, and immediately threw himself in front of the drawing to take a closer look.

There are twenty pages in total, and in addition to the five pages of the description, the remaining fifteen pages are pattern diagrams. In other words, there are fifteen layers of this program!

No wonder there is memory in the evaluation of the craftsman, obviously he has to memorize it!

Time was getting less and less, and Wen Cheng's forehead was overflowing with more and more sweat, and he looked at Su Meng.

If Su Meng's memory can pass the test, but Su Meng's memory will not be retained with the restart of the loop, what can I do?

Wen Cheng gritted his teeth and thought about it, and pressed his fists on the table.

"Wen Cheng," Su Meng whispered in his ear, "This is too much, I'll teach you the method of memorizing the palace, maybe I can help you."

"A memory palace?"

"Well," Su Meng nodded, "Although this method is used, it is still kept as fragments, but it is retained as a scene."

The boy nodded slowly, Su Meng leaned over to him, flipped through the drawings at great speed, and then pointed and said, "This pulse bomb looks like fifteen layers, but the principle is a simple high-power pulse method, Fourier equivalent bandwidth 100MHz hertz, and the impact range is about 20 meters."

"About 20 meters." The boy was stunned and repeated only the last few words.

"The innermost five layers are the Dharma Source Container, the lines are close to a lot, you only need to remember a basic circular pattern, as for the difference between the remaining ones, you can imagine it as a person's palm, five fingers are introducing themselves to each other, and then the difference is printed on each fingerprint, the innermost layer is connected to the surface pattern, and your circuit can touch it to inject the self-source."

Su Meng flipped the five drawings back and forth with his little hands while looking at Wen Cheng gently, and the boy had an epiphany and nodded quickly.

"Ah, it turns out that the lines are in a short-circuit state when injected into the source, Wen Cheng, don't use your strength." Su Meng suddenly said, "Also, don't let the five fingers touch together."

Wen Cheng nodded in astonishment.

"The next five layers are made by allowing the law source to continuously self-circulate to generate resonance peaks," Su Meng pushed his glasses and said while flipping through the English instructions, "It stands to reason that such a law source cycle should be connected to the AC pattern, but the use of DC pattern here reduces the power but makes the projection possible, I think," Su Meng smiled, "It will be better for you to borrow Liu Zhen's law source to inject it at that time."

"Good ......," Wen Cheng hurriedly responded.

"I'm trying to understand," Wen Cheng said, "since it's cyclic resonance, I guess it's using the cyclic period to push up the resonance peak."

"That's right," Su Meng smiled with satisfaction, "Guess what?"

"Swing." Wen Cheng answered quickly.

"That's right! Wen Cheng, the Fa Source oscillation layer here must be set to oscillate at a frequency to match the cycle, it is just like the adult pushing in the back, every time the child swinging the swing returns, the adult will have more strength to make the swing swing higher."

It's not so much swinging higher than a single pendulum, but letting the child turn like a windmill to make it more visual......

"Sure enough, it's a lot easier to remember." Wen Cheng nodded happily, and his eyes brightened.

Su Meng quietly looked at Wen Cheng's focused eyes and stopped talking.

Among the remaining five layers, in addition to the trigger program, the pulse emission program is the most critical, not to mention the induction layer of the ring spiral, presumably for the purpose of adjusting between distance and power, the emission layer is only to adjust the sector, it seems that it is bound to be changed in all directions.

Twenty minutes later, the fifteen-layer pattern was transformed into a five-finger mountain, and the swing that rotated like a windmill was all absorbed in my mind.

It's not about how powerful the magic or coordination is, it's about knowing the enemy. Although it is still a basic pure energy system, it is undoubtedly the biggest gain.

As for the test link, Liu Zhen's circuit qualification is too precious, and it is naturally impossible for her to try, so it seems that she can only find a corner where no one is around.

Wen Cheng took a long breath and clenched his fists.

"Thank you, Mr. Mozi, I've written it down." He smiled back at the old man.

The next step was to store the blanks, and he looked at the fist-sized pile of white balls on the shelf.

"Thank you for that," the old man walked over to retrieve the drawings, and raised his eyebrows meaningfully, "but the contemptible suddenly doesn't want to give you a blank."

"Can't you get the blank? Why?" Wen Cheng paused and said.

"If you don't want to, you don't want to," the old man suddenly became serious, "Wen Cheng, as an apprentice, you took too many things from the props today, it's too cheap for you."

"What if it's in the name of Yoo Shin?" Wen Cheng added unconvinced.

"Liu Zhen......" the old man hesitated, "although there is no restriction on her receiving the blank, then she has to take it herself."

Wen Cheng frowned, why was Mozi suddenly reluctant?

Su Meng suddenly couldn't help laughing, and quietly arched Gong Wencheng's elbow.

Wen Cheng frowned slightly, then looked at the old man calmly, "Teacher Mozi, if you have any concerns about me, it's okay to talk about it."

"I don't have any worries, since it was recommended by Xiao Meng...... the old man glanced at Wen Cheng indifferently, and then said, "That's it, the contemptible people see that you have some good roots, if you really want to take the blank, it doesn't matter, the price is that you have to sign up for the craftsman class."

Although I didn't reject it in the first place, this feeling of being forced is always not a taste, let alone a man who is inspired to become a magician......

In fact, at the beginning, it was just an expedient measure to prescribe the right medicine, but I really don't want to become a craftsman......

"Teacher Mozi, didn't you say that you won't accept apprentices?" He asked rhetorically.

"Then you can go," the old man said indifferently, "don't try to take the blank with you."

Wen Cheng bowed his head and said nothing, his fists clenched.

"Boy, don't be ashamed," the old man continued, "Although we craftsmen are unpopular professions, but there are four heroic spirits who teach you one of them, are you not satisfied?"

Four Heroic Spirits teach a student? The boy was stunned.

"However, I just heard from you that the teacher went to buy mahjong...... the boy retorted.

"Ahem," Mozi coughed embarrassedly twice, "Little brother, I won't hide it from you, if we can't recruit any more people in this craftsman class, the spirit cores of our four Heroic Spirits will be recovered to suppress the heat death."

I see, the so-called Heroic Spirit is the problem in Liu Zhen's mouth makes sense, Wen Cheng nodded and continued to listen.

Mozi sighed and paced in the room and said, "I and that friend lose the class, forget it, we have been fighting all our lives, and we can still play chess here when we have nothing to do, but those two foreign friends are different, they can't play anything, I don't discuss it with the public loss class, just in the last few days, the four of them will play a few rounds of mahjong, and then take them to the next restaurant, it will be considered a loose meal."

Wen Cheng lowered his body and was silent.

"But I'm going to be a magician...... he sighed.

"Okay, okay," Mozi waved his hand, "Don't let me go, little brother, for the sake of our four Heroic Spirits, sign up."

Wen Chengchang exhaled.

"Okay, I'll sign up." He said.

The old man went to the desk and brought a disc, and asked Wen Cheng to press his fingerprint on it, and the disc emitted a slight light pattern.

"Alright, report." The old man didn't show his joy, "Oh, I forgot to tell you, because you're the only student, so you come to class and the time is up to you."

"Good ......," replied Wen Cheng weakly.

"Don't look like this, to be honest, if it wasn't for Xiao Meng's recommendation, I wouldn't really want to teach you." Mozi said coldly.

Wen Cheng lowered his eyebrows at the floor, in fact, I don't really want to learn......

"Alright, alright, I've just injected you into the fusion program." The old man waved his hand and sent the porcelain balls into Wen Cheng's palm one by one, and soon sank into Wen Cheng's hand and merged into one.

◇

After saying goodbye to Mozi, Wen Cheng and Su Meng left the committee, crossed the road to the broken bridge, and found that it was getting late.

If the memory is correct, there is only an hour left before the plane restarts.

Everything is ready, and the next step is to hand over the problem to the next one.

The boy stood on the broken bridge and looked at the sunset, the red and blue sky was left with a few sword-like remnant clouds, and the remnant of a lonely bird crossed in front of him, shuttling on the water, leaping and gradually moving away.

Su Meng silently looked up at Wen Cheng, leaned on his shoulder, and looked at the green mountains and clear water in the distance.

A breeze blew through Su Meng's dark blue skirt, and Wen Cheng looked meaningfully at the gentle girl's fair neck and shaved shoulders, and the gentle little face behind the old-fashioned black-framed glasses, which made people can't help but reach out and hold it.

Unlike boys, girls' memories may be erased again.

Wen Cheng stretched out his hand to pull Su Meng's drooping hair, Su Meng pushed his glasses in a panic, and his small hand dragged Wen Cheng's cuffs down and remained motionless, his face showed a hint of red, and his eyes quickly dodged at a loss.

"Su Meng." He said.

"Huh?" The girl pinned her hair behind her ears.

"No matter what goes wrong, I'll try to protect you." He smiled at her and looked at the girl calmly and expectantly.

"I'm sorry, Wen Cheng," Su Meng understood, looking at the boy and smiling bitterly, "I've been hiding it from you all along."

"Who is he?" The boy asked.

"A poet." The girl replied.

Wen Cheng smiled and didn't answer, turning his head to quietly admire the afterglow of the apocalypse.

It was getting late, from the sky to the feet, from far to near, whether it was the West Lake, the distant mountains or the streets, pedestrians, vehicles, and buildings behind them, they were all bitten by the darkness, and gradually, only two people were left on the broken bridge.

"It's a shame that it's going to happen all over again......" the girl said sadly.

"Trust me," Moon Seung smiled at her, "everything will be lost."