This is a cave.

Karst cave refers to the cavity formed by the dissolution and erosion of limestone layer by rainwater or groundwater, also known as stalactite cave and limestone cave.

The most abundant karst caves in China are in the southwest border area, which is known as the best landscape in the world.

The formation of karst caves was about 100000 years ago. The deepest cave known at present is Wujia cave in Shuicheng, Guizhou Province, with a depth of 430 meters.

Because the road was zigzagging down, Gao Fei and others did not know how deep the cave was, but according to the temperature estimation below, it should be at least one or two hundred meters below.

The area of this cave is not very large. It seems to be more than 1000 square meters at most (the largest cave area is hundreds of thousands of square meters). However, it is also full of strange rocks. Various kinds of stalactites are hanging down. In the light of the shining stones, they emit various light colors.

This pool is in the middle of the cave. There are many black stones beside the pool. It looks very smooth without edges and corners.

However, Gao Fei and others did not pay attention to these stones. The three of them respectively carried a backpack and held the 05 type micro sonic submachine gun tightly in their hands. In a back-to-back triangular formation, they slowly walked to the top of the cave: a very flat black stone, rectangular, which was chiseled by hand.

As they jumped out of the black hole, they all found the iron plate with yellow sand at the mouth of the hole.

From that iron plate, it is not difficult to guess that it is installed on it - even if nature is magic, it is impossible to cast an iron plate to seal the hole.

What's more, the black hole is the navel of the dragon vein as Tietu said, and it is also the air vent of the underground ancient city.

But what puzzled the three was that since this was the navel of the dragon vein, why was it not an ancient city, or an ancient tomb, but a karst cave?

When Gao Fei thought of this question, he heard Tietu say in a deep voice: "there must be a hole in this cave that can lead to the ancient city. Let's look for it carefully..."

Tietu's voice did not fall. He was responsible for searching for ye Xinshang in the southeast direction. Suddenly, he cried out: "is it Mr. Qin?"

Gao Fei and tie Tu quickly turned their heads and looked in that direction. They saw a dark shadow in the southeast corner.

The shadow seemed to stand against the wall, but kept silent.

"City, is that you?"

Because they were worried that the bright flashlight would hurt the eyes of Qincheng City, the three men did not dare to turn on the flashlight, so Gao Fei quickly turned on the flashlight on the barrel (the barrel flashlight installed on the barrel, which has a very domineering name, wolf eye) and took a picture over there.

But then, he found that the shadow was not Qincheng: the shadow had blue eyes!

"Spirit lizard!"

Tietu growled and pulled the trigger!

With the pleasant "dada" sound of the micro sonic submachine gun, the bullet shakes out the dark blue trajectory under the fluorescence, whistling and firing away.

"Cluck!"

After a sad laugh, all the bullets shot by Tietu hit the wall of the cave, splashing a stream of dark red sparks and black stone chips, but the shadow suddenly disappeared.

Gao Fei and Gao Fei are bold and brave masters who have experienced life and death. Of course, they will not be frightened by the shadow's smile and its sudden disappearance. Almost at the same time, they have already jumped off the stone and rushed to the place where the shadow just stood.

The place where the shadow had just stood was a hole.

The mouth of the cave is irregular, about one and a half meters wide and more than two meters high. The cave is dark and deep.

It seems that before Tietu shot, the shadow was ready to escape and hid in the cave.

Tietu was about to rush into the cave, but Gao Fei held him: "don't be impulsive. Let's check first and see if there are any other openings."

If the three men all rush into the cave to kill the shadow, what if something else comes out of the cave and takes away the equipment they put under the stone?

What's more, they still don't know the situation in the cave. If they rush in and get lost, it will be bad.

Tie Tu Dang stopped and formed a triangle defense formation with Gao Fei. He stepped back to the big stone with high vigilance.

This time, when you come to the cave, you can see if there are any other people in the cave.

After careful search, Gaofei three people confirm that in the cave, there is only one hole leading to the deep, and then there is the navel of dragon veins more than ten meters above the head.

It's very good to come from that crooked navel. It's like sitting on a slide. Without any stagnation in the middle, you come to the cave.

But it's pretty hard to get out of here.

Of course, since Gao Fei and others have come in, they have no plan to go out. After all, this is what they have been searching for, and there is no news from Qincheng city.

In addition to this pool, this cave is the cave in the cave, and Gaofei is closely behind Qincheng city. She can't have time to enter the cave, let alone fall into the pool. Where did she go?Looking up at the high place, Gao Fei was about to go to the entrance of the cave when he was about to swing. But he heard Ye heartbroken and said, "eh, there are words on it!"

Gao Fei turns around and sees ye Xinshang shining his flashlight on the rectangular stone.

It was a black stone, like a little bed, full of zigzag characters.

The three men looked at the words on the stone for a while, and they all looked at them with wide eyes. They could recognize the simple words "one, heaven, and above", but they did not know anything else.

However, Gao Fei is familiar with these characters because they are similar to those in his "an GUI Jing", which should be the most popular Xiaozhuan in Qin and Han Dynasties.

Unfortunately, Qincheng, the only one among the four who could recognize Xiaozhuan, disappeared mysteriously.

After discovering that the big stone was engraved with small seal script (ancient seal script), Gao Fei and his three men found that the same characters were carved on the broken stones on the ground in the cave, but they were incomplete.

Youde black stone, also painted with simple symbols such as people, animals, it seems that it should be oracle bone inscriptions.

As for the shining stones on top of their heads, Gaofei three people are naturally not in the mood to pay attention to, and look at the dark hole hole hole again.

Staring at the entrance of the cave, Tietu said slowly, "the shadow just appeared, which should attract us into the cave. If I'm right, there must be a mechanism in the passage where we slide down to intercept Mr. Qin who is about to slide out of the exit to some place. "

Goofy said coldly, "no matter what, we have to go in and have a look."

With that, Gao Fei goes to the hole first, and then he goes in.

Ye Xinshang followed, and the iron butcher was cut off.

Because of the limited resources now, only Gao Fei, who is suddenly in front of him, lights his flashlight, while Tietu is holding a gun, ready to deal with unexpected accidents at any time.

The tunnel of the cave is a little wider than the entrance, which allows two people to turn around calmly, and their feet are also very gentle. However, it is very humid and wet. Occasionally, you can hear the light sound of water dripping on the ground.

Gao Fei's three men walk very slowly. He sticks to the wall of the cave on the right, while Tietu sticks to the left side, half twisting his body to move horizontally.

Three people can feel that the road in the cave is gentle and winding, but there is no fork in the road, so people can go on like this.

The three men were absorbed in walking for about seven or eight minutes. It was estimated that they had already traveled hundreds of meters in the cave. The shadow with a pair of blue ghost eyes never appeared.

It seems that Tietu is right. The purpose of his appearance is to attract three people into the hole.

At the same time, it also shows that the enemy in the deep hole has made some preparations, waiting for the three of them to take the bait.

It is also because the cave has been very smooth, but Gaofei three people feel some bad, walking more slowly, but also noticed that there are some calligraphy and paintings carved on the wall of the cave.

The font is still oracle bone inscriptions or small seal characters that the three people don't know.

In this way, the cave was excavated in the era of oracle bone inscriptions, and later generations carved small seal characters below in order to translate the inscriptions on the wall of the cave.

However, no matter it is Xiaozhuan or oracle bone inscriptions, the three people do not know each other, so they can only go to see the carvings.

The pictures carved on the walls are abstract and simple.

For example, a circle with a few thick lines represents a person or an animal.

The picture is simple, but it is clear at a glance. It can make people guess at a glance.

Among these sculptures, the most common person is a man who is obviously taller than others and wears a crown on his head. His chest can also be a little higher. It seems that this is a woman, or a queen.

The queen is leading her people to hunt down some black lines (wild animals) that have landed on all fours, holding something similar to long hair in their hands. It seems that they are hunting.

In addition to the Queen's hunting, there are also meetings, meals, rest, and even marching and fighting. It seems that their life is very colorful.

Each of the three men figured out the meaning of the sculpture, and after a few hundred meters, they saw a painting of the queen leading her people to worship.

The queen is not offering sacrifices to heaven or ancestors, but to a snake that seems to be coiled in high places.

The snake, the snake god, the head, and two arms.

It seems that this should be a snake god, or the totem of the Queen's country.

Just like reading a comic book, the carving plot on the cave wall gradually unfolds with the slow progress of the three people: when the queen worships the snake god, her soldiers lead a few short men (some with a chest bulge, and some with a thick line, which seems to represent boys and girls) to the top of the mountain.

The soldiers took a few boys and girls to the top of the mountain, and put their spears on the ground, making a five body throwing to the ground.

Then the snake god rolled up one of the boys and girls with his tail and opened his mouth

When he saw this, Gao Fei suddenly felt that his vision was a little fuzzy. He subconsciously raised his hand to wipe his eyes. When he continued to look, he found that the carvings were more blurred and his brain began to faint.In order to attract our attention in the painting of poisonous caves, we call it "the poisonous cave" in order to attract our attention

After Tietu's warning, Gao Fei and Gao Fei are frightened and cover their mouth and nose with their hands raised.

In their backpacks, they all carry the most advanced gas masks (gas masks, one of the necessary tools for tomb robbers, mainly for the gas and corpse gas in the tomb), but they forgot this when they went into the cave.

Ye Xinshang was just about to take out the gas mask, but he heard a gloomy laugh from the depth of the hole: "cluck, cluck!"

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