If you use the old method of watering the rammed earth layer with buckets of vinegar to soften the rammed earth layer, and then dig it. There are two big problems. First, how much rice vinegar does this use? Second, how long does it take to excavate this rammed earth layer? When the barrels of rice vinegar bought with money were poured down, and a little bit of excavation was excavated, it was found that the rammed earth layer still existed as the deeper and deeper it was dug. It definitely takes a lot of rice vinegar to dig through the 35-thick rammed earth layer, and it takes a lot of time, and I don't know how many tomb robbers can hold out until the time of digging!

Even if it is dug through, for the tomb robbers, it is just a hole that can penetrate a person. After passing through this hole, you will have to face quicksand up to 50 meters thick! To get buckets of quicksand up to 50 meters thick out of a deep hole more than 30 meters deep, I'm afraid that a group of tomb robbers with a few people will not be able to complete this project in their lifetime! You must know that the thickness of the quicksand has reached fifty meters, and the circumference and length of the quicksand belt that surrounds the entire underground palace is an astonishing number! What's more, quicksand can flow!

Moreover, tomb robbers must not be like Heibao, directly into the soil and enter from the side, that is to say, for tomb robbers, they first have to dig a deep pit on the huge mountain-like mound of sealed soil before they can reach the rammed earth layer!

This mountain-like mound of sealed soil, even after more than 2,000 years, is still more than 70 meters high, and more than 70 meters high is equivalent to the height of a 20-story building!

The rammed earth layer and the quicksand layer are not the place where the project ends, and when Heibao's head touches the hard substance again, Zeng Rong immediately knows that this is a stone! Walking through the hard stones, Zeng Rong was shocked to find that the stone wall made entirely of large stones was nearly 100 meters thick!

Zeng Rong finally knew why the Mausoleum of Qin Shi Huang was so famous, after more than 2,000 years, the underground palace was still intact and had not been stolen, not to mention other anti-theft measures in the underground palace, just rammed earth, quicksand, and stone walls, the three layers of defense line, it was absolutely impossible to break through and rely on personal strength.

If there are troubled times, warlords who want to rob tombs and dig up treasures can indeed mobilize hundreds of thousands of troops to dig, but even if there are more than 100,000 people, I am afraid it will take several years to break through these three layers of defense. You must know that the construction of this mausoleum was a huge project that took more than 700,000 people and more than 30 years to build! And when the army came to dig up this mausoleum, it was necessary to make a wider passage.

For more than 100,000 people, a few years, just the supply is an astronomical expense. You also have to count the value of various consumables. It is unknown whether the excavated treasure can be kept in terms of income and expenditure.

What's more, during the troubled times, what if such a great force was used to rob the tomb, and other forces attacked it? Do you still want to defend the city? Do you want to prevent enemy attacks while the army is digging graves?

Of course, in times of peace, those emperors would certainly not risk the reputation of tomb robbers who were reviled by the world to do such things. The emperor in peacetime, who owns the whole world, will not pay attention to those things.

In this way, the underground palace of the first emperor through the ages has been completely preserved. The anti-theft strategy adopted by the Mausoleum of Qin Shi Huang is that even if the tomb robbers find the mausoleum, they will not have the time and energy to open this huge underground palace!

After passing through the hundred-meter-thick King Kong Wall, Hei Bao finally saw an empty place, but when he saw such a place, Zeng Rong was immediately shocked in his heart!

About seven meters in front of it, there is a wall, but in this seven-meter space, against the walls on both sides, there are a lot of corpses lying there! Looking at the clothes on these corpses, Zeng Rong knew that these corpses were the last craftsmen to build the underground palace of the Mausoleum of Qin Shi Huang! After Qin Shi Huang was buried, in order to prevent these craftsmen from revealing secrets, Qin II closed the inner door and the outer door at the same time, and these craftsmen died slowly and desperately in this passage...... It's a sealed space, and more than 2,000 years have passed, and nothing has come in. These should be the corpses of the Qin Dynasty, and they still maintain the same appearance as they did before their deaths, but the skin and muscles appear to be abnormally dry.

In Zeng Rong's eyes, the death of more than 10,000 people is not a big deal in such a historical environment, but more than 10,000 people are all elite craftsmen of various types.

These elite craftsmen were suddenly trapped to death, and I don't know how many unique skills were lost because ....... Back then, Lu Ban was able to create a flying wooden magpie, and he could hover in the sky for three days and three nights, and no one has ever been able to create such a magical thing.

The corpses were leaning against the walls on both sides, and the middle passage was quite spacious. The Black Treasure swam out of the stone wall and swam up the passage.

Passing through the opposite wall, you will arrive at the real underground palace of Qin Shi Huang. But Zeng Rong wanted to find the tomb first. Zeng Rong didn't want to destroy this place, and entered from the tomb road, and it was even more difficult for this underground palace to keep its intact surname. Because if you go straight through the wall, you are likely to destroy something precious.

Coming to the passage, as soon as Heibao's figure unfolded, a not strong formation, strange things happened immediately, under the wind, as long as it was a corpse that came into contact with the wind, the clothes on the corpse, and the skin and flesh on the body immediately fell in pieces, and soon turned into a pile of fine dust, and a human corpse turned into a skeleton.

These things have long been rotten to the extreme, and they can't withstand the action of an external force at all, and only the hard bones in the human body can be preserved in such a long time.

These dried corpse-like human bodies are indeed a little terrifying, especially when some craftsmen die, they have all kinds of desperate and fearful expressions, which makes Zeng Rong very uncomfortable. The figure unfolded quickly, and Heibao quickly swam along the passage.

A gust of wind blew, and the dried corpses turned into skeletons, and behind the black treasure, a fine cloud of smoke and dust was raised. Walking around this circle, Zeng Rong can roughly estimate that the circumference of the outer perimeter of the underground palace is about five kilometers, that is to say, the area of the underground palace inside is about a few square kilometers, which is completely the scale of a small city!

After this circle, Zeng Rong also knew very well that there were four doors in the underground palace. Respectively, use the four directions of southeast, northwest, and northwest. According to the information found in advance, the southeast should be the place where the mercury is piled up into the sea, and Zeng Rong chose to enter through the west gate.

In the middle of the west wall, a huge stone is blocked inside. This stone, which can only be lifted from the inside, is the last obstacle to enter the dungeon.

Directly through this boulder several meters thick, a wide passage appeared in front of Heibao's eyes, and on both sides of the passage, there were various buildings, pavilions and pavilions towering.

Heibao's eyes can see very clearly, this picture is very similar to the scenes in some TV series and movies, but the atmosphere here is more solemn! It's all a palace, a huge underground palace!

There are rooms everywhere, and in every room, Zeng Rong can see through the window that there are many corpses inside, the corpses of the female surname! Dressed in bright clothes, but with a painful expression on his face! These women are all concubines who were martyred for Qin Shi Huang! The space here is better sealed than the passage outside, so the corpse inside looks closer to the image of a recent death.

King Qin swept [***], not only destroyed the Six Kingdoms, but also filled all the harems of the kings of the Six Kingdoms into Qin Shi Huang's own harem! Not only that, but the princesses of various countries were also filled into the harem by Qin Shi Huang.

This is a huge harem to the extreme, so that Qin Shi Huang wanted to build a big Afang Palace to support these beauties. Afang Palace, from the Tang Dynasty great poet Du Mu's "Afang Palace Fu", you can feel that this harem of Qin Shi Huang is such a huge harem.

After the death of Qin Shi Huang, the successor Qin II dealt with Qin Shi Huang's women by burying all the concubines who had children! In this way, about tens of thousands of beauties from all over the world were buried in the Mausoleum of Qin Shi Huang for a Qin Shi Huang!

Along the rooms, looking at the countless female surnames in it that still basically maintained their beautiful surnames before their deaths, Zeng Rong's heart was extremely cold, what kind of regime could be so ruthless that he could slaughter tens of thousands of beauties at one time! The women of the kings of various countries will definitely reach the level of beauties, and those princesses of various countries who are pampered will not be far behind.

"What a waste! I've seen a waste of food and money, but I've never seen a waste of beautiful women. Zeng Rong sighed infinitely in his heart, this entered the Mausoleum of Qin Shi Huang, in addition to the huge amount of work that shocked Zeng Rong, and another scene appeared that amazed Zeng Rong.

In this, there are no automatically fired crossbow arrows recorded in the history books, which makes Zeng Rong a little strange. Zeng Rong analyzed it, there may be two reasons, first, more than 2,000 years have passed, and these crossbow arrows should have lost their effectiveness. The second possibility is that there is no such mechanism at all.

With that kind of solid protection on the outside, setting up some crossbow arrows here would feel redundant.

Countless pavilions, all kinds of rare birds and beasts made of metal, all kinds of flowers and trees with very realistic shapes. There are also various painted pottery made of life-size eunuchs, palace maids, and guards. The expressions on the face, the movements, the various forms.

Here, it is completely a real and complete Qin Palace!

All the buildings revolve around a center, this center is a magnificent palace, Zeng Rong knows very well in his heart that that palace must be the most important place in the entire underground palace, that is, the place where Qin Shi Huang's coffin is placed!

This palace should occupy an area of more than 1,000 square meters in the sight of the black treasure, and the whole palace exudes a very attractive smell to the black treasure.

Wandering to the front of this palace, Heibao was even more surprised to find that this huge palace with an area of more than 1,000 square meters was made of bronze as a whole! The only gate is surrounded by bronze juice!

(To be continued)