Master Mozi went to Chang'an City, handed over the Book of Heaven to Zhong Kui for safekeeping, and then turned around and returned to Jixia Academy.

"Master, you're back, everything is going well." Zhong Wuyan asked with concern.

"Well, while I'm out, everything in the courtyard is still safe." Mozi asked.

"Master, everything is presided over by Master Zhuang Zhou, and nothing has happened."

"Well, that's good." Master Mozi said.

"Master, I heard that the Great Wall is filled with gunsmoke, and the demons in the north have once again invaded the stability of the Great Wall. The Yuan Qi cannon, designed by our hospital, was almost completely damaged. After Master Zhuang Zhou heard the news, he sent his senior brother Sun Bin from Chang'an to the Great Wall yesterday to preside over the restoration of the building's vitality cannon. Lian Po said.

"Oh? On top of the towering battlements of the Yuan Qi Cannon, how did the demons destroy it? Mozi wondered.

"I heard that the demons wore flying wings, flew into the air, and destroyed the energy cannon with a black boulder." Lian Po said.

"Flying wings? How can demons have flying wings? Master Mozi wondered.

"I also doubted, and asked Master Zhuang Zhou, but he didn't have an answer."

"I used to work on the wings of the flying machine with the old master, but in the end we failed. With the ability of the demons, it is impossible for them to study it on their own, and if I am not mistaken, the record of the organ wing is lost on the mutilated pages of the Heavenly Book. And the mutilated pages must be in the hands of the demons at this moment. Master Mozi said.

"I see, don't we have a way to restrain ourselves? At least we can't lag behind, and we have to have trap wings that can fly. Zhong Wuyan said.

"Yes, if it is not targeted, the Great Wall is in danger. If there are many demons and the flying momentum is very high, the range of bows and crossbows will be insufficient, and the current firing rate of the Yuan Qi Cannon will not be enough to fully deal with it. Master Mozi said.

"How's that to be?" Lian Po asked anxiously.

"I heard that Kong Ming's improved Yuanqi cannon has a longer range and higher frequency of fire, and it played a pivotal role in the First Battle of Chibi, and it is worthy of being a student of my Jixia Academy. Hey, now that I'm old, I'm not as bright as your younger generation. Lian Po will work hard for you tomorrow, go to Shu in person, to ask for the design of the Dongfeng altar, in my name, presumably Kong Ming will not refuse. Master Mozi said.

"Yes, Master, I'll pack my luggage tonight and leave tomorrow morning." Lian Po said.

"I didn't continue my research on the flying wing, but I handed it over to a person, and after so much time, I think I should have something to gain now." Master Mozi said.

"I didn't expect that Master would have planned for a rainy day, so who did you hand it over?" Zhong Wuyan said curiously.

"Your little junior brother, Lu Ban." Master Mozi said.

"No wonder I see him always locked up in the house, it seems that you have never forgotten your advice, master." Zhong Wuyan said.

"Let's go, come with me to his place." Master Mozi said.

Lian Po, Zhong Wuyan followed Master Mozi to the room in the far corner of the northeast of the academy.

Knock knock.

No one answered.

Knock knock.

Lian Po knocked on the door again, but still no one answered.

Zhong Wuyan has always been short-tempered, and when she saw that no one opened the door for a while, she kicked the door open.

I saw that in the room, a dazzling array of various mechanism parts were scattered all over the ground, and there was no place to put my feet.

Lu Ban was still asleep on the table, and the wax and oil from the candles were dripping all over the corner of the table.

"Wake up, wake up." Zhong Wuyan shouted.

Lu Ban slowly raised his head and rubbed his sleepy eyes. When I looked closely, it turned out to be Master Mozi and two senior brothers and sisters.

So he hurriedly got up and bowed to the teacher.

"Teacher, good morning, you have returned from Chang'an." Lu Ban greeted the teacher politely.

Mozi nodded with satisfaction, his face full of love.

"Senior brother, it's noon, why are you still sleeping?" Lian Po looked reproachful.

"Oh, I was working on my wing last night and didn't fall asleep until the wee hours of the morning, so I woke up so late." Luban Road.

"We came to you with the teacher today just to see how your flying wing is doing? Take it out and show it to us. Lian Po said.

After hearing this, Lu Ban picked up the bird-like mechanism in the middle of the table, only to see that he was behind the wing of the machine, twisting and rotating a few times with something, and the wings that looked like birds shook their wings, and Lu Ban then pushed the wings forward with his hand, and the wings began to fly in a circle in the room.

When Zhong Wuyan saw this scene, he said excitedly: "Master, look, it really flies like a bird!"

Zhong Wuyan said as she pointed in the direction of the flying wing.

"Hehe, the teacher finally got his wish, I didn't expect you to turn the theory into reality so quickly." Mozi said with relief.

"Teacher, if it weren't for your experience as a foundation, I wouldn't have been able to research it so quickly." Luban Road.

At this moment, Zhong Wuyan stepped forward, stepped on the corner of the table, jumped upward, and grabbed the flying wing, the flying wing stopped, and Zhong Wuyan also fell to the ground.

"Why can't you carry people, so how do the demons fly into the sky?" Zhong Wuyan said confusedly.

"Hehe, senior sister, don't you know, this is just a model, but as long as all the sizes are increased and lengthened, when the time comes, there will be no problem carrying ten people." Luban explained.

"Oh, yes, that's great, we Terrans don't have to be afraid of demons in the future. Let's see who flies higher when the time comes, and it's strange if I don't step on them. Zhong Wuyan was in a surging mood.

"Next, you need to grasp the experimental formed trap wing, and when you have a full grasp of it, we can help the Great Wall Guards." Master Mozi said.

"Yes, Teacher." Lu Ban replied.

Ten days later, Lu Ban really sent the giant machine wing into the air.

Ten days later, Lian Po also brought the design of the Dongfeng Altar.

"Since the two things are ready, Lian Po, Zhong Wuyan, and Lu Ban, the three of you will work hard and hand over the flying wings and the design drawings of the Dongfeng Altar to the Great Wall Guards."

"Teacher doesn't need it, I'll just go alone after dressing up, don't worry, teacher." Luban replied.

"Okay, then it's hard for you." Master Mozi said.

Mozi was on his way back to the house when he happened to bump into Zhuang Zhou. Seeing his depressed face, he said with concern: "What's wrong?" Feeling unwell? ”

"Last night, I dreamed that the Western Army trapped in the ancient city of Loulan was about to be destroyed!" Zhuang Zhou said slowly.

"Huh?! How can this be, is there no way to deal with it? Mozi asked worriedly.

"The things I dream about are facts that are about to happen in the short term, and they cannot be changed by manpower." Zhuang Zhoudao.

"Hey, it seems that you, me, and the old master have worked hard to lay the foundation of the King Continent, which is about to face a great change!" Master Mozi looked out the window and frowned.