It is not common to find clear records of ancient tomb mechanisms in all the tomb robbery documents in the Central Plains Continent, so is it true that our tomb robbers have never encountered these mechanisms? Not really. The king of thieves once revealed to Yin Shenglin that he had encountered a quicksand crossbow, and the personnel suffered heavy losses at that time, and the emperor thief had encountered a crossbow in the process of digging the ancient tomb, and described the situation at that time. But for some reason, these circumstances were not included in the tomb robbery materials at the time.

In addition, there is indeed quicksand in the tombs. The Chu tomb in Guodian Town, northwest of the trade city, adopted a peculiar anti-theft technique. When the grave robbers dig a hole to dig into the sand layer, the sand will flow into the hole, and the sand flow will drive the stone to collapse, and the sand layer is carefully buried with stones, the smallest is only 3 kilograms, and the largest is 165 kilograms. These stones are of different shapes, the corners are very sharp, and the placement of the stones is also carefully designed, which can be roughly divided into random stone layers, monttop stone layers, capstone layers, waist stone layers and undercover stone layers, which can prevent thieves from entering from different parts. After the collapse of the top floor of the burial chamber, a large amount of sand and gravel was piled up in the coffin, which effectively prevented theft.

"What we just encountered is the quicksand machine crossbow." Yin Shenglin said: "I didn't think that the ancients had such a developed technology before, but today I can see it. ”

"It reminds me of the record of the Mausoleum of Qin Shi Huang."

Qin Shi Huang also took great pains to prevent tomb robbing. The internal structure of the Mausoleum of Qin Shi Huang is said to have an unprecedentedly complex form: "Let the craftsman make a machine crossbow arrow, and those who are close to it will shoot it." With mercury as a hundred rivers and seas, the machine phase is instilled. "The way to shoot the poachers with a machine shot can be said to be a concentrated expression of the highest level of mechanical design ideas and mechanical production technology at that time.

In addition, Sima Qian's record that there was a large amount of mercury stored in the underground palace of Qin Shi Huang's mausoleum, in addition to historical records, was indeed discovered by someone through the practice of tomb robbery in the Qin and Han dynasties. The dungeon was filled with mercury, and it may have been motivated by the poisonous mercury vapor to kill the diggers. At that time, people would not have noticed the phenomenon of mercury poisoning, and it was natural to use this property of mercury for anti-theft design.

"Who knows what kind of danger will come next." Yin Shenglin had just finished speaking, and suddenly felt a chill in his back.

"What people!" The entourage also felt that something was wrong, but the two of them took a picture with torches, but found that there was no one around at all, not even ghosts.

"Maybe I'm a little nervous in the tomb." Yin Shenglin said: "This tomb is very large, we can stop and rest for a while, you go and find a candlestick to light it." ”

"Okay."

The eight candlesticks in the tomb were lit, and Yin Shenglin looked around, the house was full of burial goods, and there was a huge coffin in the middle. "Even the burial room is so big, how big is this tomb!"

"Your Majesty, I'll go over there and have a look."

"Don't go too far."

"Hmm."

"Wait...... You wait! Yin Shenglin suddenly stopped him.

"What's wrong?"

"Put that light out...... Yes, and that ...... The one next to it is also ...... You come here. ”

The retinue wondered: "What's the matter, Your Majesty?" ”

"I just felt something was wrong. How many of us are here? ”

"Two."

"Then look at the shadows on the ground."

The attendant was so frightened that he almost jumped up, and there were three shadows on the ground, which was really terrifying. However, Yin Shenglin's face did not change, he already knew how to deal with it. Shadow ghosts, day and night, you will see a strange shadow more than your own shadow, and this shadow does not belong to you at all.

"Take off a shoe, man left, woman right."

The two took off their left shoe. "Throw it into the sky. After falling, the soles of the feet must be facing up, otherwise continue to throw, fast. ”

The two threw their shoes a few more times, and after making sure that the soles of the shoes were facing up, Yin Shenglin said: "Jump forty-nine times on one foot!" ”

After the dance, Yin Shenglin muttered a few more words to the shadow, and the shadow disappeared suddenly.

"Your Majesty, connoisseur! What are you reading, and you can still run away from ghosts? ”

"What I read is: The painting wine of the imperial thief's grass pavilion is so beautiful, I have to chase it every day, I don't want to be the emperor, I just ask the author not to write me to death, the author is the most handsome, we all love the author."

"It's amazing, this trick is really high."

"That's necessary, let's go."