“How to do it?”I laughed without a word, and if the wall were for someone else, unless it was discovered by the state, it wouldn’t open at all.

Because if there is a big movement, it will collapse here, as if it were used with explosives, which is very risky and easy to detect.

And large-scale modern machinery, but also can not open in, even if it is welding cutting, but also difficult.

Not to mention the gas that evaporates around the mercury.

Only I am such an alien, can breathe without my mouth, without fear of such poison gas.

"Fire, let the little bird spit out the fire, and soon this diamond wall will melt."Grandpa said.

Listening to his grandfather's voice, he was very excited, although he obviously became Dapeng, but after all, he was a priest for a lifetime, a man of life, so he still missed the inverted fight in his bones, especially to find that kind of fighting stimulation.

Especially those moods that find rare treasures, there is no way to describe it in words.

Not my grandfather, but me too.

I shouted out the little bird, and as soon as it came out, it emitted a red light, and in the whole dark abyss, like a huge torch, illuminating the place around me tens of meters.

Oh, hey!

The little bird made a crisp sound, and then suddenly a dazzling light on his body, followed by a fire dragon spit out directly from his mouth.

As soon as the dragon went out, it roared infinitely, and the fire was roasted on the King Kong wall, and the crackling sound of the wall, and then a smell of metal immediately filled it.

There is even a hot wave coming.

After burning for a while, I found that the copper water flowed down the wall, with a red red light and white smoke, and in the direction of the moat.

The terrible heat burned all the places through the white smoke...

Gollum, Gollum...

Suddenly, from the back of the King Kong wall, the sound of grunting.

This sound is a bit like blowing air through a straw to the water bottle, and it is also like the sound of water boiling in a kettle.

"Little bird, be careful."I said, "There may be an organ behind this wall."

The words are not finished.

Hmmm!

A huge fountain squirts in the direction of the little bird and me.

I flew out quickly, a move by the little bird touched me, and the huge wings opened and blocked me behind...

I opened my eyes, my heart jumped to my throat, and I wanted to scream the little finch flashing away, but I couldn't scream, it was too late.

I saw a spewing out, like the momentum of the reservoir, squirt towards the little finches.

But when those liquids burst into the little bird's body, the little bird's body suddenly erupted into the breeze of the bream.

The flame is like a dragon, with the visible momentum of the naked eye, engulfing all the incoming liquids, protecting the body of the small finches, ensuring that these liquids are volatilized into gas before they touch the body of the finches, and return in the direction of coming.

“Water is mercury.”I flew into mid-air, and the little finches flew into mid-air, and we looked down into the middle of the wall.

The wall in the middle of the fire was roasted a big hole, and then sprinkled mercury from the mouth of this hole, the white flowers of mercury is very spectacular, like iron water, when landing, but also made a crackling sound.

Mercury flowed in the direction of the moat, and in a moment, the water of the entire moat rose a large section, but after rising, after a while, the liquid level slowly dropped...

“What is this situation?”I looked at the high and low moat.

“This is the self-draining function of the moat, that is to say, the height of the mercury in the moat, will never reach both sides of the moat.”Grandpa explained.

I nodded, this I can understand, because many tombs, especially large tombs, will pay attention to the drainage system, otherwise when it rains, the groundwater penetrates into the tomb, the whole tomb is soaked, the tomb owner obviously does not want to live after death is flooded.

Therefore, for the big tomb, the drainage system is necessary, especially like the emperor's tomb of the first emperor, this level of mausoleum, that drainage system is more advanced, as I see now, even after more than two thousand years, this drainage system is still available, and very timely and easy to use.

I looked up at the middle of the diamond wall, looked doubtfully at the gushing mercury, and asked doubtfully, "This is not right, this mercury has been sprayed for a while, according to reason, there is more mercury in it, and the water situation should also weaken some of it, but you see, there is no trend of weakening this water situation at all, is there so much mercury in it?"

"It is said that this Qinling has a river and lake composed of mercury, forming a map after the unification of the six countries of the Qin Dynasty, so it can be seen that this mercury is quite a lot, tens of thousands of tons may not have, but thousands of tons should be, even after the volatilization of these two thousand years, then there are at least hundreds of tons, and what we see, the flood out, it is only a few tens of tons, and then wait, it should soon be clean."Grandpa explained that the tone was not slow, but it was very excited.

Well, wait, just wait.

We all looked at the mercury that spit out...

Ten minutes later, the intensity of its spewing is still so great...

Twenty minutes has passed, and the amount of spewing has not decreased but increased...

Half an hour passed, and there was no sign of abating.

This is not only me, but also my grandfather is embarrassed, he said: "This, how is this possible?"Since there are hundreds of thousands of tons, so long, it has been flowing dry early, why is there so much mercury?”

“No, Grandfather!”I suddenly found out what was wrong, but I still hadn’t figured it out.

"What's wrong?"Little Man, what did you find?”Grandpa asked.

I looked up at the gravel that was suspended over our heads, and I said, "Grandpa, you see, these gravel are suspended in the sky, and there is a powerful buoyancy on the ground to hold them up, just as I am now suspended, but look at the mercury, all of which are flowing down, and there is no sign of floating up."

“Yeah, why didn’t I find out about that?”Grandfather exclaimed.

"Couldn't it be that these mercury are very heavy, so it can't float up."I remember when I was in high school, I heard that.

"Then it will not be, can this mercury sink again, can it sink over those huge stones?"Grandpa shook his head.

"No."I took a deep breath, as if I understood, and I said, "This moat is not a drainage system at all."

“What?”Not only Grandpa, but also Yulan exclaimed, “What is this?”

"It's a circulatory system, use this system to prevent theft!"I told them what I wanted to say, “When the wall was not destroyed, the whole system was balanced, that is, the mercury could not be washed out, but after we had burned a hole, the mercury flowed out, and then it went out into the moat, and then the moat came into it, and then it came out again from the hole, so the cycle repeated...”

“It’s like that...” Grandpa said in surprise, “if it’s a cycle, it’s going to have to be a lot of pressure, because the moat is much lower than the King Kong Wall.”

"The pressure, of course, is very large, to the middle of the Kongo wall as a watershed, down is the downward pressure, up is the upward pressure, the upward pressure is the buoyancy, the buoyancy of these steps, the downward pressure, is the pressure of this mercury pressure into the moat, that is, the pressure of this mercury to the moat, that is, this pressure, to promote the operation of the whole system never stops."I took a deep breath, and after the explanation was done, the whole person was not calm, and the design of this Qinling was indeed a ghostly work...