Hearing the footsteps getting closer and closer, we didn't have time to think about why there was a sarcophagus quietly on the stone platform where there was no coffin? The sarcophagus is now our only hiding place, and if we want to escape the bandits, we must rely on it.

The six of us quickly walked up to the stone platform, trying not to make a sound, but we pushed the lid off very quickly. The lid was hidden on it, and it took no effort to move half of it, and the six of us squatted down in order, and something strange happened, and the sarcophagus was like a boat floating on the water, because the weight of the six of us staggered and sank.

We didn't care so much, so we used both hands to move the lid back into place above our heads to make sure it was tightly closed.

The coffin lid was closed for less than two seconds, and the sarcophagus we were in actually began to sink again, which was not the same as the previous one, it was the sarcophagus that took the initiative to sink and fall with us, like an elevator.

According to normal physical analysis, this sarcophagus should be hollow and able to float by the buoyancy of water. The water under the coffin is like a tide again, the water level is long, the coffin rises to expose the ground, the water level goes down, and the coffin also sinks into the ground, level with the stone platform.

But the truth is always beyond people's expectations, the sarcophagus descended to the level of the stone platform, did not stop, still along the tunnel of the four walls, sinking, and the coffin lid above our heads was blocked by the edge of the platform, left on the platform.

This time I understood, it turned out that the lid was originally part of the stone platform, and the bottom was empty, and there was no coffin, and when the sarcophagus went up, it automatically put the lid on top and became a coffin with a lid, and when the sarcophagus went down, the lid was left on the platform as a tool to cover the hole.

The design is ingenious, but the most important question is, what is the purpose of such a design? If the driving force that pushes the coffin up and down is water, then the rise and fall of the coffin is random, and it can only be limited to the movement process up and down in a straight line. As the saying goes, there must be a reason for something, and the designer must have a very important purpose in doing this, but our eyes are cloudy and we can't see it.

As the coffin fell, farther and farther away from the lid, we all slowly stood up.

I said, "I don't know how deep this sarcophagus will sink, if it is powered by water pressure, we will want to go up again, but it depends on our fate." ”

Zhao Tiesuo stared at the roof of the cave, where there were noisy voices and footsteps, and then he said to me, "I should have no problem climbing up the wall from here, but I have to go to the tomb keeper's house, go again, and find a rope to pull you up." ”

Watching the sarcophagus under my feet keep sinking, I kept praying in my heart that it would stop quickly, and if it went deeper, it was estimated that no one would have the body to climb up.

It sank for more than 20 meters, and the wall of the tunnel where the sarcophagus was located was gone, and the gap in the wall formed a square doorway. When the doorway was about one person high, the sarcophagus finally landed, and there was no water below at all, and on the side of the coffin, there was a corridor of the same size as the doorway.

"There's no water underneath, so what's going on with the coffin's take-off and landing? Similar to the elevator like the stone house? At least you have to know what motivation is, right? As I spoke, I was about to step out of the coffin and walk into the corridor to see what was going on.

Before I could step out on one leg, the coffin actually moved sideways in the direction of the corridor. Half of the leg that had been stepped out was quickly retracted, and I didn't stand firm for a moment and leaned back, being held by others.

Yan Qiu said: "I guess it's magnetite, right?" The weightless tunnel before can be made, why can't this magnetically levitating elevator? ”

Although I didn't understand, I still knew the loophole in her words, and I pointed out: "That's different, the weightless corridor is stationary and can maintain balance forever, while the elevator and the coffin are obviously in motion, and the magnetic field needs to be regularly and constantly changing, in order to achieve the purpose of falling at a uniform speed and rising at a uniform speed." ”

Lu Shan pointed to the ground in the tunnel and said, "Look, there is an iron rod in the middle. ”

I looked out of the edge of the sarcophagus to see the trajectory of the sarcophagus moving back and forth, and there was an arm-thick iron rod on the ground, and the center of the sarcophagus was just passing through the iron rod, and sliding into the tunnel in the direction of its extension.

The fat guy shouted: "This is a train, a maglev or something, aren't we driving along the tracks?" ”

Sister Hua said angrily: "That's called a maglev train." ”

I shook my head and said, "That's impossible, it takes electricity to generate magnetism, turn it into power, and push it to work." In Cao Cao's tomb, where did the electricity come from? It's an elevator again, and it's a maglev train, how much power is there? At least one village must meet the power supply standard. ”

While everyone was discussing, they saw several sarcophagi in front of them, squeezed into the same corridor as ours from the corridor in all directions, and the cylindrical rails on the ground also converged vertically on this one from all directions. After a while, all the sarcophagi stopped side by side.

We looked back and forth, and counted, and there were twelve uncovered sarcophagi. The sarcophagus we are in is the penultimate one, with one on one side and ten on the other, and we are like on an assembly line that produces sarcophagi.

Seeing that the sarcophagus had stopped, everyone walked to the side of the sarcophagus like a hurdle, and when they came to a sarcophagus near the middle, they saw that the sarcophagus was facing a roadway perpendicular to ours, and there was also a stick-like rail on the ground. The sarcophagi in front of us stopped on both sides of this T-junction.

After a while, the sarcophagus under our feet began to move again, and the one we were standing in the middle began to drive like the vertical corridor, and the sarcophagus behind it was also very orderly, marching one by one. This time the sarcophagus movement direction is vertical, really like a long train, we are standing at the front of the locomotive, followed by eleven carriages.

The fat brother said happily: "Haha, this Cao Cao will also build a subway." ”

As soon as I heard his description, it was very apt, aren't we on the subway now?

Yan Qiu said in disbelief: "This is also perverted, the earliest subway in my country was built in the capital in 1971." The world's first subway was built and opened to traffic in London, England in 1863, with a total length of only six kilometers, and steam locomotives were used at that time. China's first maglev train, that was only ten years ago. ”

Seeing that her excited eyes were red, I persuaded her: "The wisdom of human beings is not something we can imagine, we haven't found it, it doesn't mean that we haven't been, maybe today is the moment when we change history, wait a while, let's see if there is anything more fun." ”

The fat brother jumped back and forth happily in the front of the car and in the carriage, like a naughty boy who would not get tired, and said while jumping: "Yes, what is Cao Cao driving a train, Chiyou and the Air Force." ”

Sister Hua said angrily to the fat brother: "Be honest, otherwise while we witness the miracle, we will hold a memorial service for you to mourn the dead fat man who is lying on the rails due to playfulness." ”

Seeing the corridor in front of me, a blue light appeared, and it seemed that the sarcophagus subway was about to leave the tunnel, and it was night outside, and it was a full moon. According to the marks on the map, there is no other part of the tomb below, indicating that we are about to be sent back to the ground, and the mood is also extremely excited, the only pity is that in the end, Cao Cao's burial place was not found.

I'm worried now, will it be five years ago or five years from now? In case everyone crosses over with me, then we still have to find a way to go back to the right era, but there is nothing wrong with having someone to accompany us, and it doesn't hurt to live five more years.

I said to the people, "If this had gone out five years ago, would we have collectively lived five more years?" ”

Zhao Tiesuo smiled and said, "You miscalculated, right?" Originally, you lived to 2080, but due to the crossing, you only lived to 2075, which is five years less. But it's really good to cross over, I can go back and see Zheng Xi. ”

Lu Shan smiled and said, "What are you looking at?" Five years ago, you might have beaten you up because you were impersonating. ”

The crowd began to laugh and ponder the question of whether to live five more years or five less. But I don't know what is waiting for us in front of us, when is the bright moon.