Mozi stood firmly by the fire well, the scorching air surrounding his sweaty iron body. The temperature in the fire well reached thousands of degrees, and the flames danced wildly in the well, and the golden-red flame shadows whistled and sprayed, sputtering sparks, smelting the red-burned metal blocks in Mozi's hands with astonishing power.

Mozi was close at hand, but he was not afraid of the flames of forged steel and molten iron, he stood motionless in front of the fire well, his resolute gaze confronted the fierce flames. What's even more bizarre is that the metal block in Mozi's hand has been almost smelted by the flames, but the machine gloves he is wearing on his hand have not moved at all in front of the high temperature flames, and it seems that they are not affected by the thousands of high temperatures at all, and still maintain their original dark blue.

"Master Mo......" Han Xin and Zhang Liang saw that Mozi was focused on his own affairs and didn't notice them, so Han Xin tentatively greeted him.

There was no response, and Mozi didn't seem to hear Han Xin's voice, just focusing on the metal block in his hand.

"Ink senior...... Mr. Mozi ......" Han Xin paused, continued to shout twice, and changed his title.

There was no response, but Mozi still stared at the metal block forged in the flames.

"Divine Craftsman!" Han Xin suddenly raised his voice and shouted.

No response......

Han Xin looked at Mozi, who was not moving, and then suppressed his voice to learn the tone of the captain of the guard, and called cordially: "Uncle Mo......"

Still no response......

Han Xin looked at Zhang Liang helplessly, saying that he was really out of options, no matter how much he shouted Mozi, he didn't respond, and seemed to deliberately ignore them, but looking at his extremely focused appearance, it seemed to be ...... He really didn't notice the two people who entered the house.

Zhang Liang naturally didn't have anything to do, just smiled awkwardly, but now they could see Mozi's strange temperament with their own eyes......

So the two of them had to stand at the door and wait quietly.

- "Sit" - Suddenly, Mozi couldn't take his eyes off it, and he gently spit out such a word without changing his color, Mozi's words passed in an instant, like a dragonfly dotting water, but for Han Xin and Zhang Liang, that word was really a thunderclap in the silence.

So the two of them immediately found two wooden stools in the house and sat down. Then, Han Xin tentatively greeted Mozi a few more times, but Mozi, who had spit out the word "sit", returned to a silent state of concentration and did not move at all.

Helplessly, Han Xin and Zhang Liang could only continue to wait, but fortunately, they could sit and wait slowly.

And that was nearly three hours...... It was still noon when Han Xin and Zhang Liang entered the city, but by the time Mozi finished his work, it was already sunrise and dusk.

Mozi casually took out a towel to wipe the sweat off his body, and then walked straight to Han Xin and Zhang Liang, who had been waiting for a long time, without putting on his clothes first.

"Senior Mo, I am Han Xin, the pioneer general under the account of Xiang Yu, the king of Chu, and this is my brother-in-law Zhang Liang. The King of Chu heard that you need a crimson heart for the development of your mechanism technique, so he specially ordered me to bring it to my seniors. Seeing that Mozi, who had been waiting for a long time, finally came over, Han Xin immediately stood up and said respectfully.

After speaking, he took out a small wooden box from his arms, opened the lid, and a dazzling crimson light overflowed from it, only to see that a fist-sized crimson stone was presenting in the box, constantly overflowing with sultry red light.

The Crimson Heart is the crystallization of the Crimson Statue's evolution after its death and decay, and it is the same level of treasure as the Blue Heart that Mulan swallowed.

"Hmm......" Mozi replied expressionlessly, and took the strange crimson heart. About three months ago, Mozi had rumored that he needed a Crimson Heart as a raw material for his research on the arts, and hoped that the person who held the Crimson Heart would lend him one, and if anyone was willing to give him this treasure, he would thank him with a lot of money!

"That's right, Senior Mo, the King of Chu said, heavy money ......"

"I don't have a lot of money to spare." Before Han Xin could finish speaking, Mozi said bluntly.

"I didn't ...... Didn't ......" Han Xin looked very embarrassed, he was actually about to tell Mozi that the King of Chu had a word, and he didn't need to pay a lot of money, and directly gave the crimson heart to Mozi, but before he could say it, he was interrupted by Mozi...... At this time, the context became very awkward, and Han Xin was also puzzled, you didn't prepare a lot of money? What if it was not the King of Chu who sent the crimson heart, it was someone else's words...... So how do you explain this? Doesn't this trick you?

"Alright, let's go eat first." Mozi said to them with a stiff face.

"Oh, no, Mo-senpai. We still have something to do, we have to leave quickly......" Han Xin said immediately. Anyway, the task was finally completed, and he now had only one thought in his heart, to quickly inform Xiang Yu of the information that there were illegal forces blocking the road in Yuanzi Mountain, and then he hurried to the Beiyi Ice Clan to reunite with Wang Zhaojun.

"Stay here for a while." Mozi suddenly said to Han Xin and Zhang Liang, his face was expressionless, and when he said this, it was not like a retention, but an order.

Zhang Liang didn't care, anyway, he was here to experience mortal dust, it was the same everywhere, and this organ city was very peculiar, which made him very interested. But Han Xin was obviously reluctant, but when he looked at Mozi's stiff face, he felt like he was looking at a majestic ancestor, and for a while, he didn't dare to refuse......

Then, without waiting for their reply, Mozi turned around and went into the back room...... And Han Xin and Zhang Liang could only follow in.

- The valley is deep and the wind is surging, and there is always a gentle wind blowing from outside the mountains in Merlin City, which is very strong, and it can always rotate with the huge mechanism fan in Merlin City during the day. But at night, the mountain breeze is very quiet, and the gentle melody blows slowly. It seems that this wind is also human, and at night, it also has to slow down, relax the pressure, lie down quietly, and watch the moon and stars sparse.

Yes, the moonlight is thick, and the starlight has become dim, Zhang Liang straightened his head, looking at the stars flickering in the hazy night sky from afar, he was very engaged and intoxicated. For a moment, he felt that in the ethereal starlight, there was the figure of Mulan.

With a steady footstep, Mozi walked onto the wide, flat roof.

Zhang Liang turned his head when he heard the sound and saw Mozi walking slowly towards him.

"Senior, the roof of your house is very suitable for moon and star gazing." Zhang Liang said with a smile.

Mozi didn't speak, just took out something from his arms and threw it straight at Zhang Liang.

Zhang Liang subconsciously reached out and caught the thing, and after a closer look, it was a finger-long metal cylinder, with a central inside, and a transparent round mirror at each end, which looked quite exquisite. Zhang Liang looked back at Mozi with the lens tube, then thought about it, aligned the lens tube with his eyes, and used his eyes to look at the night sky through the lens tube.

A wonderful thing happened, when the lens barrel was aimed at Zhang Liang's eyes, the magic blue in his body was spontaneously connected with the lens barrel, and then the lens barrel applied the power of the magic blue to Zhang Liang's vision, which changed the scenery in his eyes.

Zhang Liang clearly saw that the originally dim stars in the night sky had brightened and become larger. Zhang Liang was very curious, so he injected more magic blue into the lens barrel, and then his vision immediately changed again. Zhang Liang quickly came to the conclusion that this machine tube can improve people's eyesight and lengthen their line of sight under the drive of magic blue energy, so that people can clearly see the true face of the scenery far away in the sky.

Zhang Liang injected a lot of magic blue energy into the lens tube, and at this time, the star had undergone a huge change in his eyes, and it was no longer a simple glowing dot!

Through the lens barrel magnifying his vision a million times, he clearly saw that in fact, the stars were all spheres like the sun and the moon, but much smaller—no! It is not necessarily smaller than the sun and moon, maybe it is just much farther away than the sun and the moon, and the starlight is not simply white, but colorful and violet, strange and brilliant starlight lingers in the Milky Way, exuding a mysterious beauty.

"Look at the moon." Mozi stood next to him and said silently.

As Mozi said, Zhang Liang moved his gaze to the bright moon in the night sky, and then, in the million-fold magnification of the vision of the machine tube, Zhang Liang saw another kind of moon—an appearance that was usually unimaginable.

The gray-white moon shadow is not as bright and dazzling as the white jade seen before, and there are many pits of different sizes on the huge moon surface, and it seems that the whole moon is just a pitted gray-white hemispherical surface, without brilliance, and there is no so-called "jade cicada" aesthetic magnificence.

Zhang Liang's gaze unconsciously revealed a trace of bleakness, the bleakness in the moonlight reflected back from the surface of the moon.

"Distance can deceive sight." Mozi stood in the position of a bystander and said silently.

"Senior, what do you mean by that?" Zhang Liang looked back at Mozi with a somber face, and asked with a twinkle in his eyes.

"No matter how real it feels to things, to people, when the distance between them spans thousands of miles...... Everything can't be easily believed......" Mozi said earnestly.

"But why did Xiang Yu and Liu Bang make such a mistake......"

"The words of the predecessors are meaningful...... Could it be that the kings of Chu and Han who are far away in the border city ...... Did you see something wrong? Zhang Liang looked at Mozi suspiciously, and asked tentatively.

But Mozi stopped talking.

The environment fell silent for a while, and after a long time, Mozi slowly spoke again.

"You're Jiang Ziya's apprentice......" Mozi's face was still expressionless, and his words were still concise.

"How did the seniors know?" Zhang Liang questioned, he was actually Jiang Ziya's secret disciple, not to mention knowing him, the world didn't even know that the sage Jiang Shang still had disciples.

"Your eyes are very similar to Jiang Ziya." Mozi said in a deep voice, his eyes seemed to turn back to the past at this moment, seeing the morning and twilight before the passage of time, and then, he said another sentence, "It is impossible to see through ......"

If it were a different person, there would definitely be a question for Mozi at this time. But Zhang Liang didn't ask anything, just sat quietly, as if waiting for Mozi to ask.

"Is he still alive?" Mozi asked suddenly.

"Well, the teacher is in good health." Zhang Liang also replied.

"Hmph...... Old immortal ......" Mozi said in a low voice, although it was a low voice, Zhang Liang also heard it clearly, but he didn't say anything. At that moment, the moment Mozi cursed Jiang Ziya, a short smile flashed at the corner of his mouth.

At this time, Zhang Liang handed the machine mirror barrel in his hand back to Mozi.

"You can keep it." Mozi said lightly.

"Really?" Zhang Liang was very happy to hear this, he liked this mirror tube very much, through the starlight refracted in the mirror, he remembered the night in the canyon, Mulan sat alone on the rock, staring at the starry sky. He believes that Mulan will also like this lens tube.

However, Zhang Liang still said politely: "You can't take the things of your predecessors for nothing." By the way, the research of the predecessors required a lot of strange raw materials. ”

"Do you think this works for you?" Zhang Liang said and took out a black crystal from his arms, yes, it was a whole black crystal, the appearance was extremely magical, because it was dark black, if you didn't look carefully, you wouldn't even see that it was a transparent crystal, but would treat it as a black stone.

"Demon Dragon Crystal." Mozi said immediately, with a slight surprise in his eyes.

"Seniors know about this?" Zhang Liang was surprised, although he had always carried this thing, he himself didn't know what this crystal was.

"Of course, after all, there is not only one tyrant dragon in this world." Mozi said lightly.

Hearing this, Zhang Liang affirmed that Mozi did understand the origin of this crystal.

"Since the seniors recognize this thing and will definitely be able to make good use of it, I will give it to the seniors and exchange the lens barrel with the seniors." Zhang Liang said.

"No, I can't use it, the trick can't work on the magic dragon crystal." Mozi refused.

"And what's the use of this crystal?" Zhang Liang asked.

"It will be of great use to keep it for yourself."

Seeing this situation, Zhang Liang had no choice but to take back the magic dragon crystal, and then continued to look at the night sky with the machine tube.

"What do you think of Organ City?" Mozi suddenly asked such a sentence for no reason.

Zhang Liang was stunned for a moment, and then said calmly: "In a remote place, surrounded by mountains, guarded by high towers, and guarded by huge walls - from the bright side, it is easy to defend and difficult to attack." ”

"Easy to defend and hard to attack - did you know there would be war in the Organ City?" Mozi's eyes were slightly surprised.

"I don't know. But you gave me that feeling. I had just left Fengqi Mountain, and I didn't know much about Qin Chu's political affairs and situation, and I didn't want to make judgments from the words of the few people around me. But what I could tell was that the people here were nervous, especially from the looks of the defenders. Zhang Liang said calmly, and then asked, "But this is also the question I want to ask, is there really an enemy?" ”

"Yes." Mozi said in a deep voice.

"Another point, I wanted to ask before, about the layout of the city and the design of the city wall, the principle used should be the so-called 'follow the rules, conformism', right?"

"Well, 'follow the rules, stick to the rules' is a kind of worldly truth." Mozi looked at the layout of the entire organ city from afar and said with a sigh.

"It's also for the sake of guarding." Zhang Liang asked.

"This was the preparation I made when I first built the Organ City, but I didn't expect that it would really be useful one day."

"Do you think the city can hold it?" Mozi asked Zhang Liang a heavy question for no reason.

But Zhang Liang thought for a moment, and then said calmly: "I just said that on the bright side, the organ city is easy to defend and difficult to attack, but in fact, it is not necessarily the case - the harder the city wall is built, the more it actually reflects the cowardice of the people in the city. ”

"If it seems to me that the inhabitants here have not experienced war, it is their luck and their misfortune. Because as you said, the city will face war. And they are people who live in a peaceful society, and their true happiness can be seen from their faces, but they can also see their soft heart to live in a peaceful world, even if they are the soldiers who defend the city. ”

"But you and I should know that the siege of the city has always been based on the attack of the heart, and the siege of the city is the bottom. No matter how hard the city wall is, it will eventually be broken, and although the people in the city are defending the city, they have no strong will, only soft hearts. In this way, once a gap is punched in the city wall, this seemingly impregnable organ city will probably be shaken......"

"This city is not easy to defend." Zhang Liang made a final summary with a silent expression.

"But I have a strong will, but I have no soft heart." Mozi replied in a deep voice.

"But senior, you only have one person, can you defend a city alone?" Zhang Liang asked lightly.

Mozi stood quietly under the huge heavenly dome, and the entire night sky seemed to become his inky background.

"Don't follow the rules, stick to the rules; Love is not attacking, and watching life. ”

Zhang Liang looked at this majestic figure standing quietly under the inky sky, and a heavy respect couldn't help but sprout in the depths of his consciousness.