Tang Ding and Qin Yujie, who were in the stone gate inside, heard the screams coming from the passage, Tang Ding whispered to Qin Yujie to wait here, and he rushed back to the passage.

Tang Ding's speed was extremely fast, and a distance of a hundred meters took a few breaths.

Professor Zuo, Li Mingwen and others were looking at the place where the archaeological researcher had just disappeared.

From the big stone gate to here, it has been nearly a hundred meters, and the light has long been unable to play any role, at this time it is pitch black, all illuminated by the flashlight in the hands of everyone.

"What's going on?" asked Dondin.

"Just now, a researcher from our institute, named Liu Xufei, disappeared right here. Li Mingwen pointed to a place that everyone automatically vacated and did not dare to approach.

Under the light of everyone's flashlight, the place where Liu Xufei disappeared was on a square stone, because the footprints on it came to an abrupt end.

Tang Ding stood next to the ashlar, pressed the stone that Liu Xufei disappeared with his hand, and there was nothing unusual when he pressed it, and with a hard effort, the ashlar stone immediately flipped over.

As he flipped over, Tang Ding could see the faintly flowing yellow sand beneath the ashlar.

Tang Ding's flashlight is shining here, and everyone can also see the scene of faintly revealing yellow sand here.

"This place is exactly what I thought, this quicksand is figured out, and it can also sense pressure changes. ”

"Is there any salvation?" Zuo Qingming asked.

Tang Ding shook his head.

"It's impossible?" Li Mingwen had never heard of such a statement.

Tang Ding was noncommittal, "I once saw the tomb of a prince in a wild history, that is, completely use this quicksand to block the tomb robbers, and it is said that this quicksand can sense pressure changes, at first I also thought it was incredible, but now I finally understand that this principle can be explained." ”

"Oh, how do you explain it?"

"Yellow sand is like an object that can carry a certain weight, lighter than this, people can naturally walk on it, but once this weight is exceeded, the cover on the quicksand will flip. ”

"But right now, Liu Xufei is going down alone? Could it be that he weighs more than all of us?"

"No, the reason why Liu Xufei flipped over is because your weight is heavier than his, and these covers are equivalent to a seesaw, but the person who flips is not the heavy end, but the light end. ”

"How can a seesaw flip over the light end? ”

"It can be explained. Because the bottom of the seesaw is not empty, but quicksand, the heavy end is pressed, the quicksand below is compacted, and then the light end of the natural quicksand is empty, just empty enough to flip the cover. ”

"Huh, then what should we do?" Li Mingwen was so frightened that his hands and feet went weak.

He just stood up and thought that there was no crisis, but at the moment he was a little restless.

"Based on this principle, I speculate that if everyone walks separately, there will be no problem. Because the gravity sensed by this quicksand is not so sensitive. Moreover, this quicksand flap must have been built before the tomb, because it was necessary to send King Qin's coffin inside, and this coffin would definitely not be a group of people swarming in, but could only enter in batches, and the person carrying the coffin could only be two people at one end, so this cover should bear the weight of these two people. ”

Although it is not certain whether Tang Ding's words are correct, even if they are incorrect at this time, they must be treated correctly.

"Then let's go our separate ways. ”

Under the leadership of Tang Ding, everyone arrived at the smaller stone gate of Qin Yujie and the others.

"How are you going to open this stone door?"

Now Tang Ding has become the backbone of everyone, and he will ask Tang Ding if he has any questions.

Although Professor Zuo is a master in academic research, he is not good at opening the tomb mechanism.

And Tang Ding studied with Longhu Zhenren for six years, learning Taoist techniques and formations, and later specialized in the Guigu Peerless School in the "Seven Techniques of the Yin Fu of the Benjing", and there are many things to figure out.

Tang Ding observed and studied at this stone door for a while, and no one said much anymore. Previously, when Tang Ding observed the first stone gate, Qian Bin and the others were still sneering, but now, a few people have stopped, and they also realize that what they have learned is indeed useless here.

Tang Ding observed for a long time before he came to the conclusion that this stone door was similar to the previous stone door structure, but the biggest difference was that the sealing stone of this stone door was not in the door, but outside the door.

Of course, there are other differences, the previous stone door is a stone door with five-color rammed earth as the wall, inlaid with stone door, but the wall of this stone door is a complete mountain.

Could it be that this tomb was actually dug into a hill?

And this hill is also covered by a whole layer of five-colored rammed earth, and the thickness of the cover is nearly 100 meters?

How much work is required for this?

Tang Ding was a little unbelievable.

If this tomb is the tomb of the pre-Qin people, then the national strength of the Qin people may have to be reassessed. However, according to the scale of the mausoleums built by the Qin people, they like to build mausoleums with great fanfare.

This is the case with the No. 1 tomb of Qin Gong found in Shaanxi, as well as the Mausoleum of Qin Shi Huang in Lishan.

It is an indisputable fact that the Qin people like to build mausoleums on a large scale after death. However, the scale of this tomb is also too large.

However, the most important question at the moment to explore the inside of the tomb is to open the second stone door of the tomb.

According to Tang Ding's observations, this second stone gate was clearly different from the previous one.

The sealing stone of the previous stone door is inside, which is the inner door, and the function is to block outsiders from entering the tomb.

However, the sealing stone of this small stone door is outside, it is a door that opens outward, and the stone door is blocked with a sealing stone outside, is this to prevent the people inside from coming out?

Of course, the sealing stone of this stone door is not like the previous stone door, the sealing stone is a huge stone bar, leaning against the door, blocking the opening of the two doors.

The sealing stone of this second stone gate is in the form of a threshold, blocked in the middle.

There is a threshold inside, and there is a threshold outside, which just seals these two stone doors.

However, to open the stone door, you must first remove the door sealing stone weighing thousands of catties outside the stone door.

The sealing stone of the first stone door can be opened with a nail key, but the sealing stone of the second stone door is to move the stone in a real way.

However, before moving away from the stone, Tang Ding still communicated with Professor Zuo first, because this place was also closed for a long time, and it also needed ventilation to enter.

For the sake of safety, Professor Zuo certainly agreed.

However, this nearly 1,000-pound sealing stone, with these powerless researchers, it may be difficult to move.

The students brought by Professor Zuo are five men and one woman, and the researcher on Li Mingwen's side was originally five people, but one person was just swallowed by quicksand, and now there are only four people left, and now there are only four people left, and if each person lifts a hundred catties, it is okay to remove the thousand catties of sealing stone, but the problem is that this sealing stone cannot accommodate so many people to join hands together, not to mention that so many people are working together, in the case of crowding people, whether each person can still lift a hundred catties is also a question.

Originally, according to Li Mingwen's proposal, I would have found a forklift to come in and help pick up the door stone, but whether the weight of the forklift would cause the bluestone slab in the passage to flip over, no one can say.

According to the characteristics of bluestone slabs that can sense pressure, once it is overturned, the forklift will definitely be fine, and the person at the other end will be dangerous.

Just when everyone was arguing, Tang Ding grabbed one end of the sealing stone by himself, and had already raised a head, "Come here and take a hand!"

Tang Ding alone lifted one of the heads of the door sealing stone, and when everyone saw it, they hurriedly came over to help, and finally moved the door sealing stone out of the groove next to the stone door.

The sealing stone is out of the groove, and the rest is easy to do, move a little, and you can open a crack in the stone door.

However, in order to let the dust gas in the tomb as much as possible, it is not enough to just open a crack.

Since one end of the sealing stone has moved to open the groove, the rest of the things are easy to do, just drag the sealing stone and drag the other end of the sealing stone away from the groove.

Drag and lift, the force used is much smaller.

Tang Ding can do it alone.

Waiting for Tang Ding to be alone in the eyes of everyone, he dragged the nearly 1,000-pound door sealing stone aside, and said to Professor Zuo, "Teacher, you take everyone out first, I'll open the door first to breathe." ”

Professor Zuo asked Tang Ding to come before, and he did have the intention of promoting Tang Ding, but now it seems that Tang Ding has become the person he relies on the most.

Although Professor Zuo relied on Tang Ding, but this time he did not agree with Tang Ding's point of view, Professor Zuo took out a watering can from his bag and handed it to Tang Ding, "Tang Ding, don't be in a hurry to open the door first, I have something to tell you, when I opened the first stone door, I forgot one thing, but fortunately there is this second stone door." ”

"Teacher, if there is anything you want. ”

"Well, that's the case, after opening the door for a while, I hope you can go in and take a look, let's change the environment of the tomb so rashly, I'm afraid that the bamboo slips and other things with written records inside will fade because of the change of environment. This is a hypoxic blocking protective solution that is specifically designed to protect textual records. Of course, there is one of the most important prerequisites for doing this, you must ensure your own safety, but if you don't want to, I won't force it. ”

"It's okay, don't you still have a gas mask? ”

Zuo Qingming pressed Tang Ding's shoulder heavily, "Be sure to pay attention to safety." ”

"Teacher, don't worry. ”

At this time, Zuo Qingming didn't say much, "Okay, let's go out first, work in pairs, pay attention to safety!"

Zuo Qingming handed over the most dangerous task to Tang Ding, and everyone was convinced. Everyone was a little dissatisfied with Zuo Qingming's questioning of Tang Ding before, but at this time, they were not dissatisfied.

"Teacher, let's go in too, and take care of Senior Brother Tang. Qin Yujie said suddenly.

Zuo Qingming didn't expect Qin Yujie to take the initiative to ask for help, but two people are indeed better than one person, Zuo Qingming looked at Tang Ding and wanted to ask what he meant.

"Okay. Tang Ding nodded.