Yan Shu waved his fist angrily as he spoke, making the chains rattle. Li Yan asked curiously, "Brother Yan, how did you get in?"

Yan Shu sighed and sat on the ground: "That's a long story, I was arrested at the last hero conference." Not...... Have you ever heard of the name 'Heavenly Craftsman'?"

Li Yan shook his head.

Yan Shu continued: "It's no wonder, my faction has always been low-key, and you can't be considered lonely if you haven't heard of it. Besides, we don't do anything to fight and kill, and we usually only do some business of repairing bridges and roads, building houses and walls, which is very different from the people in the rivers and lakes. ”

Li Yan said: "Isn't that good, why does the 'Morning Mist' still arrest you?"

Yan Shu sighed and said: "Little brother, you don't know that there is a saying: If you sit at home, disaster will come from heaven." One day three years ago, when I received a golden post, bad luck came to me. It was an invitation to the World Heroes Conference.

I was not one of the people in the world, so I had no intention of getting involved in their affairs, and since my child had just been born at the time, I was even more reluctant to leave home.

But my Hun family read the post and said to me: 'King Qin has an invitation, it is to give you a face bigger than the sky, how dare you not?' I listened to her words when my ears were soft for a while.

Alas...... Brother, you must remember that no matter what happens, you can't believe the nonsense of women!"

Li smiled cruelly and nodded: "Big brother, I remember!"

Yan Shu continued: "I hired a big car to come to Huating Mansion. Good fellow, before my feet hit the ground, a group of people came to pick me up. It is eight sedan chairs, and it is a gong to open the way, which is not majestic. I thought to myself that King Qin is really good, such a virtuous corporal, and he is about to catch up with Liu Xuande in the Three Kingdoms. But it was so stinky and long, I had no idea what they were talking about. After finally making it to the third day, I was finally relieved and ready to go home.

But I never expected that the prince would find me. He gave me gold and silver, but he didn't say what he wanted me to do. Later, I couldn't hold back anymore and said to him, 'Chitose Lord, the younger one is a straight person, and if he has something to say, he will speak directly. I am very grateful that you have treated me with the courtesy of a countryman. If you have a place where you can find me, please open your mouth, or I will not dare to accept the gold and silver. ’

He laughed and said to me, 'That's a quick talk.' I do have something I need your help with right now. Then he took out a broken blueprint and asked me, 'Can you restore the thing on this drawing?'

I looked at it and was taken aback. It turned out to be a drawing of a dungeon. ”

Li Yan asked, "Could it be the design plan for this place?"

Yan Shu said: "You can also say that. But that's just the original picture, and many details are incomplete. I'm a worker, and it's already itchy to see this kind of thing, and with the benefits they give me, I can't say anything if I don't do it.

So I agreed to give it a try. I closed the door and began to work. But I painted for seven days, and I became more and more afraid. ”

Li Ren hurriedly asked, "What's wrong?"

Yan Shu shuddered: "Because this is not only an underground palace, but also a huge war fortress."

In my estimation, the fragment most likely came from a missing part of Mozi. Mozi was half an ancestor of the craftsman's business, and the mechanism he designed once showed his might during the Warring States period.

This design was originally intended to allow small countries to effectively resist the invasion of large countries, and the underground palace was well connected in all directions, with hundreds of exits, which allowed an entire army to surprise the enemy's rear.

Coupled with the dense traps in between, even if the enemy attacks with several times the force, there is no return, and if it is accompanied by food and water, a dungeon can be defended for several years without defeat.

I muttered at the time: What is he doing when he makes this kind of thing?

Li Yan thought to himself: You really guessed right, that's what Siming planned.

Yan Shu continued: "I made the stupidest decision to return the drawings directly to King Qin and tell him that I would not do it. ”

Li Yan exclaimed: "This is not good! You read his drawings, but I am afraid that he will kill people and destroy his mouth!"

Yan Shu sighed: "Isn't it! You can figure out the truth as a child, but I didn't understand it at the time." Sure enough, I was caught. But it's not enough, because the picture is not finished yet, and they still need me.

These people were hard and hard to lure me into submission, and I also thought about not caring about anything, and going home when I was done. But if you think about it carefully, King Qin's posture must be rushing to fight, and if you fight, you will die, so didn't I become his accomplice?

My master once taught me that one's ability should be used to benefit others, and not to be used to help and abet others. Although I am not a hero, I don't want to do this hurtful thing. ”

Li Yan said: "Then Brother Yan, you have been imprisoned until now?"

Yan Shu said: "There is an episode in the middle. Seeing that I was dead or alive, the people of the morning mist actually found my junior brother......"

"Do you still have a junior brother?"

"Hmm. Yan Shu nodded, "The two of us are called 'Heavenly Twin Rats'." My name is 'Iron Arm Rat' and his name is 'Gopher'. Although he was smart, he was not right-minded, and he was kicked out of the school at an early age.

At that time, he pretended to come to see me, and he cried so much that he was crying. What else do you say that the picture is a relic of the ancestor, and it would be a pity if it was not restored. I believed his nonsense, so I told him some of the details, but I didn't expect him to turn around and go to King Qin to ask for merit, and he also became the second ...... in the 'Four Calamities'."

Li Yan hurriedly asked, "Brother Yan, who are the 'Four Calamities'?"

Yan Shu said: "Those are the four leaders in the morning mist, which are called 'Sky Collapse', 'Earth Crack', 'Mountain Call', and 'Tsunami'. ”

Li Yan said: "Your junior brother is 'earth crack', and I saw a big man who called himself 'Tsunami'. But I don't know what the other two look like?"

Yan Shu said: "'Shanhu' is good at disguise, and he is a very thin person. As for the 'Heavenly Collapse', no one has seen him except King Qin. ”

Li Yan nodded, looked at the street outside, and suddenly asked, "Brother Yan, you said that the construction of this underground palace only started three years ago, how could it be built so quickly?

Yan Shu smiled bitterly: "It's all a good thing that my junior brother did." He has an unusual ability, which is that he can drive away mice. No matter how many, thousands will do. This dungeon was gnawed alive by rats!"

Li Yan looked at the magnificent street, thought about the scene at that time, and couldn't help but feel numb.

Yan Shu sighed: "Xiao Li, we can't get out, why don't we calm down and study the art of civil engineering?"

Li Yan asked, "Don't you want to run away?"

Yan Shu shook the shackles on his hands: "How can I run? I've been locked up here for three years, and I've tried all kinds of methods, but no matter what, I have to open the iron lock first, and I can't do anything with my hands in hand." ”

Li Yan smiled: "Fortunately, I brought a knife in!"