Before we got to the bottom, we heard a roar outside, and it was like there was a working factory in the distance, and there was a loud noise, but we were far away, and it was quieter.

Curiosity has completely occupied everyone's chest, but this elevator-like stone room is not in a hurry, and it is still slowly descending at a uniform speed. We are standing here, but we are also worried, for fear that this organ will fall into disrepair and stop halfway through, or fall, that is force majeure, and it is estimated that the insurance company will not pay for it. Fortunately, the stone chamber is surrounded by brick walls, which looks very solid, and you can't see the height outside, so the sense of fear is naturally much lighter.

After a while, a doorway began to appear under our feet, and as the stone chamber slowly descended, we entered the direction of the stone chamber, and the wall behind it gradually became empty. It seems that this stone elevator still opens the door front and back, the entrance is in one direction, and the exit is in the opposite direction.

Before the stone chamber could land steadily, we jumped out one by one and landed on the ground. When I looked up, the landscape in front of us shocked everyone, and I even felt dizzy and about to fall.

It is a cylindrical pit with bluestone bricks on the walls, apparently excavated by man. The diameter of the pit is 100 meters, straight from bottom to top, and the upper and lower layers of torches enclose a circle, illuminating the entire pit brightly.

The point is that in this pit, there is actually a huge Ferris wheel. This Ferris wheel rotates horizontally, and all the iron cockpits are at the same horizontal level, more than 30 meters above the ground. The cockpits, with a large copper pillar about twenty meters in diameter, slowly rotated sideways counterclockwise.

On the way, we will pass through many platforms, and it is at these platforms that the torches on the upper level can be seen by the light of the torches, and behind each suspended platform, there is a dark corridor, and on the side of the tunnel crossing is a U-shaped iron ladder, which extends along the wall to the ground where we are standing.

Regardless of anything else, this copper pillar is peculiar enough, think about it carefully, in the Han Dynasty without modern technical support, how could there be a way to cast such a large copper pillar? And it also needs to make sure that it doesn't break halfway.

I asked Yanqiu suspiciously: "Is there a record of this history?" How did such a large copper pillar come from? ”

Yan Qiu shook his head.

Zhao Tiesuo gave me the answer, he said: "It's simple, you just need to find a tree that big, and then put copper skin on the outside." ”

It is still very possible to hear him say this, and the wisdom of the working people has once again impressed me, which cannot be learned in textbooks.

Even if, as Zhao Tiesuo said, the big tree is wrapped in copper skin, then inserting the big tree into the ground and connecting it to the mechanism inside that drives the big tree to rotate is not easy to achieve. It was even more difficult to go up to a height of more than 30 meters, fix the umbrella-shaped brackets on the pillars, and hang those cockpits.

I looked up and counted the platforms.

Sister Hua said, "Don't count seventy-two." ”

I immediately asked Sister Hua, "Why are you so good at counting now?" I'm dazzled when I look at it, you've actually finished counting? ”

Sister Hua said: "The wellhead we climbed just now, counting our total of seventy-two, I felt that these two sides were related, so I looked up and estimated those cockpits, how could there be seventy, so I think it is seventy-two." ”

Legend has it that there are seventy-two doubtful mounds, seventy-two wellheads leading to seventy-two stone chambers, and here there are seventy-two cockpits, leading to seventy-two platforms, and seventy-two corridors behind. After thinking about it for a while, it became a tongue twister in an allegro book.

I sorted out my thoughts and asked Sister Hua, "Is there anything special about the number seventy-two?" Why is it all this? ”

This time, it was Yanqiu's turn to help Sister Hua answer, she said, "Ninety-nine to one knows, right?" ”

I was upset when I heard this number, and when I mentioned ninety-nine to one last time, the fat brother almost became crippled, but I still nodded to confirm.

Yan Qiu said: "Seventy-two is eight nines, and seven plus two is the ninth nine, so the number seventy-two has the meaning of ninety-nine to one, and nine is the meaning of describing more, so in ancient times, many things were described as many as seventy-two." For example, the seventy-two changes of Sun Wukong. ”

It turns out that the ancestors have studied mathematics so thoroughly a long time ago, and they really understand multiplication with addition.

I asked Sister Hua again: "You said that the two sides are related, what is the connection?" ”

Sister Hua glared at the fat brother and said: "We walked that just now, obviously it was not the exit and the main entrance, this pig's head brought us into the back road, but it tortured my sister's beautiful legs miserably." I guess the ones above are the exits to the stone chamber. ”

I shook my head and said, "No, the exits are in a circle, and our row of rooms is side by side, and they're all on the same side." ”

Sister Hua turned her head and glared at me again and said, "He's stupid, you're stupid too?" Won't the road turn? Don't believe me, let's go up and have a look? ”

Our group walked to the opposite side and chose a point that was far from where we had come down. Sister Hua and I climbed up the iron ladder, and the others stayed behind to wait for us.

Originally, from the place where we came down, it was possible to climb up, and then ride the Ferris wheel to turn over, but the Ferris wheel thousands of years ago was not an ordinary dare to sit. So we still chose to walk over and climb again.

Sister Hua and I quickly got on the platform, took off the torches on the shelves by the wall, and walked into the corridor.

The road is about more than one meter wide, serpentine bend, no right angle and no regularity, originally still remember the direction, walking and walking is chaotic, and it is not very flat, one will go uphill and one will go downhill, fortunately, there is no fork in the road, we don't care about others, just go forward.

After walking for about twenty minutes, we were in front of a blocked wall, and there was also a small blue stone on the wall. The stone wall in front of us was the same as the door next to the dragon's head in the stone chamber where there was a statue before, sinking straight down to the ground.

When I walked out of this doorway, I almost didn't kneel down for Sister Hua, and sure enough, as she said, as soon as the door went out, I was actually standing in a weightless tunnel, which happened to be on the side wall of the tunnel. The door to the tunnel from the stone chamber is closed, and it seems that we have not been here before, but it is enough to prove that every stone chamber has a weightless tunnel. And as soon as the tunnel entered the side wall, there was an exit hidden, and the fat brother really led us to the wrong way.

But from the perspective of a one-way switch, maybe the people who built the tomb weren't ready to let us out at all, maybe there was a reverse switch, and we didn't find out. No matter what, it was confirmed that Sister Hua was right.

She yelled at me, "Delay the time." ”

I just smirked, lowered my head and followed Sister Hua back.

When I went down to the bottom of the pit again, the other four people were gone, and I started to beat the drum in my heart, it couldn't be that I was separated, right? Say yes and wait here, what about people?

Sister Hua and I were looking around looking for someone, when we heard Lu Shan's voice coming: "Zhanxiao, Sister Hua, we are here." ”

I followed the sound and found that there was a road not far away, and there was a small square hole in the wall next to the road.

Lu Shan's head was poking out of the small square hole, looking at us, like the conductor of the Ferris wheel, and shouting: "Come here, here." ”

Sister Hua and I quickly walked into the road, which was also made of stone bricks, three meters high, five or six meters wide, and the long one didn't know where it stretched.

On the right side of the entrance of the corridor, there is a doorway the size of a single door, and inside is a small stone house with an oil lamp, a bed, and a futon. There are slippers on the floor, a basin under the bed, and a large plastic bucket at the head of the bed with water for human use.

A small square table was placed in the middle of the floor, and next to it lay a small maza. On the table is a half-bottle of two pots, with a small wine cup upside down and a pair of chopsticks on it. A plate of leftover cooked meat, a plate of fried peanuts with only skin and salt leftovers.

There was a simple hanger on the wall, and an old green military coat hung from it. In a box on the ground next to the wall, there were many thumb-sized colored bullets.

There is actually a communication room here, and the small square hole that Lu Shan called us is the small window of the communication room. And it can be seen that someone is here for the night. Don't know what's in the tunnel, someone needs to watch here? But most importantly, as long as someone can come in, they will definitely take us out.