It was dawn, and the charlatan lifted the curtain of the tent and looked out, and saw the fog all over the mountains.

It's a bit like the foggy town where he lives.

The charlatan sat cross-legged at the entrance of the tent, patiently waiting for the fog to dissipate, and patiently waiting for a strange scene.

He often came to Xiangxi, and was a "travel" for him. It was common for him to travel through mountains and rivers. But with just a pair of feet, even if he came frequently, he could not walk many mountains. He could only stop regretfully. But this time, he took the mountain ghost's car and truly felt the power of the organization.

First there was a convoy, which was very convenient to travel. It drove until there was no road. It formed a No. 1 base camp on site, responsible for car supervision and maintenance and external contact.

Then most people carried equipment and hiked over mountains. They were very professional: they had topographic maps, mountain spectrums, GPS navigation and positioning, various detection instruments that could not be named, and also placed buzzing drones, which made the charlatan's eyes shook.

The second base camp was formed in the middle and left half of the equipment here for backup purposes. It was so thoughtful.

The last section was about half a mile long, with a steep slope of nearly 70 degrees. If it were just him, it would be impossible. But the mountain ghost was working together, and several forwards climbed like apes, went up and hit the nails, tied the knot rope, and made a rope ladder. He was so trembling but steadily, and stepped on the ladder and came up.

How great would it be if he could get such treatment every time. His research and exploration will inevitably lead to a higher level.

When I came up, it was almost midnight. The mountains were terrifyingly dark. So many wolf-eyed flashlights and headlights could not shine a hundred meters away. I only vaguely felt that there was a large area of ​​extremely darkness in front of me, much darker than the night. Moreover, I don’t know if it was an illusion, but I always felt that there was a slight whimpering and roaring in the dark.

Meng Jinsong asked someone to raise a cordon. According to the meaning, it would be dangerous to move forward. Everyone camped online and did not cross the line. They said that it would be dawn tomorrow and they could see the truth.

According to Ershen's private complaint, the scene was quite shocking and rare to see.

So the charlatan didn't sleep well all night and had a dream. In the dream, he was still looking for a box, but this time, he was fumbled in a large area of ​​almost sticky black, with whimpering and roaring in the sticky ones.

...

Yamado also got up one after another. The sound of brushing his teeth in the heavy fog came from the sound of hula brushing his teeth and the sound of getting a pot and a stove. In order to see clearly, some people turned on the flashlight - but the flashlight in the white mist was useless except for power consumption, so they muttered and turned it off.

The charlatan swallowed, continued to wait, and licked his lips uneasyly. The fainter the fog, the more nervous he became, and the more anticipated he was in his heart.

The sun seemed to jump up to the top of the mountain all at once. The thick fog suddenly thinned under the sunlight, shrinking and disappearing. In just a few seconds, it was like pulling off a mask, and everything was white.

The noise around gradually became less and there was only Ling Ding's pot and spoon left. After a while, even the Ling Ding's collision was gone. The charlatan stood up and trotted to follow a group of excited mountain dogs, crossed the first cordon, and came to the second cordon.

The first cordon was about a hundred or ten meters away from the edge of the cliff, while the second cordon was only about ten meters away. Two people stood beside the cordon to maintain order and were not allowed to move forward. However, there were not no one in the place ahead. Meng Jinsong and Liu Guanguo stood three or four meters away from the edge of the cliff, pointing downwards.

The charlatan quickly waved at Meng Jinsong: "Assistant Meng! Alas, Assistant Meng! Me!"

Meng Jinsong turned around when he heard this and frowned slightly when he saw the disgusting big face in the crowd, but the seventh aunt's face was always good: everyone has come here, even if he doesn't bring a charlatan to see the mountain courage, he should always be surprised.

Meng Jinsong smiled and nodded at the person who maintained order, indicating that the person could let go.

The charlatan was overjoyed, and he walked past the cordon in a short body and rushed to the front of him in two steps. He wanted to greet Meng Jinsong, but his eyes were already stuck, and he could not move or move. After a while, a sentence of emotion emerged from his throat-

“It’s so spectacular!”

***

Last night he thought that this was a mountain depression.

As for the mountains, they are as high and low as the highest mountain, they will naturally have to go down, but they never expected that this would be a sinkhole.

Geographically, the ups and downs of mountains and rivers are collectively called "terrain", and even the mountain concave basin is included in it. Because with the ground as the boundary, the mountains and rivers and concave are at least on the top, they are "positive"; the sinkhole is "negative terrain", which is essentially a large funnel collapse and is deeply trapped in the underground, so it is "negative".

The domestic sinkholes are mostly distributed in areas with developed karst landforms in the southwest. Most of the underground rock formations are carbonate rocks that can be eroded by water. Within hundreds of millions of years, the underground gradually eroded into a pile of holes. One day, it reached the critical point and could no longer bear the weight of the head. So a loud bang, the entire plate collapsed and disappeared from the ground.

In academic definition, only if the diameter and depth exceed 100 meters can be called a sinkhole. Those smaller than this range can only be called a "vertical shaft". As of now, the largest sinkhole in the world is considered to be the sinkhole in Xiaozhai, Fengjie, Chongqing, with a diameter of more than 500 meters and a depth of more than 660 meters. Just a rough calculation, the bottom area of ​​the pit must be hundreds of acres.

The diameter of the pit in front of me is smaller than that of the pit pit in Xiaozhai, but it is estimated that it must be three or four hundred meters. What is even more incredible is that the pit entrance is not open-air. If a plane passes over the sky, the people on the plane will never find a pit here, and they will only think it is an ordinary valley - because a huge green cover seems to be pulled up above the pit entrance, covering the deep cave of the huge pit.

The charlatan swallowed several times and had goose bumps all over his body.

Because he stood close, he could see clearly: the huge cover, from a distance, was dark green and shallow green, but in fact it was sparse and empty, and was made up of countless vines and leaves cross-linked, but how could the vines and leaves grow horizontally? And the length was so amazing that it could block the hole?

This must be manually traction, but the problem arises again: how much manpower is needed and how big the project is.

He squatted down and looked carefully. When he saw that his hair was about to stand up.

It is actually pulled by human power: at the edge of the nearly round pit mouth, there is an elongated bracket wedged into the cliff every other section, with patina on the bracket, which is very likely to be bronze. If it is reliable, it should be in ancient times, when someone used the bronze bracket wedged into a circle of rock walls as the support base point, tied the rope, and set up a huge net at the pit mouth like a loofah frame in a farmyard, and then led the vines and leaves to wrap themselves along the rope net, climbing all the way until they grew in one place, forming a natural green cover.

Many years later, the original mesh rope had decayed and fell, leaving only the bronze bracket, but the vines that had been successively covered were still firm.

...

No, no, the charlatan shook his head and rejected his guess: How long is this vine? I heard that the longest plant in the world is palm vine. As long as it has enough length for it to climb, it can grow to more than 400 meters. But that is in the tropical rainforest. Xixi Xiang does not have this climatic conditions. Even if there is one, it will take nearly a thousand years to grow to a length of 100 meters according to the growth rate. During this period, geological disasters and even droughts and floods are numerous. How can you ensure that it just grows into a "lid"?

The conversation between Meng Jinsong and Liu Guanguo came from his ears.

Meng Jinsong: "Can't the drone fly?"

Liu Guanguo: "I can't fly, the magnetic field here is a bit special, and the electronic equipment is a bit blind."

Meng Jinsong: "Where is srt?"

SRT is a single rope lifting equipment fixed to the rock wall, also known as "single rope technology". Simply put, it is to achieve free lifting and lowering on a rope, which is widely used in cave exploration and deep underground.

Liu Guanguo: "It's just a decoration, you know, there are flying foxes."

Meng Jinsong: "There are no parachutes or wing suits?"

Liu Guanguo: "The visibility of the lower end is too low, the terrain is complicated, and it is too difficult to operate. Besides, I am afraid of flying foxes."

The charlatan thinks that the name "Flying Fox" is quite familiar, and it seems that he has heard it somewhere.

Meng Jinsong sighed: "Look, after so many years, technology has developed to this level. We still have to use the old method of Grandma Duan."

Liu Guanguo agreed on the side: "That's it."

There are too many doubts, and the charlatan can't help it: "Assistant Meng, this..."

He didn't know how to describe the connected vines in front of him: "It's all the works of mountain ghosts?"

Meng Jinsong shook his head: "I don't know this. The mountain ghost's magazine has never been recorded."

"Then... will the mountain ghosts maintain them regularly?"

Meng Jinsong continued to shake his head.

No one comes to protect it. In the perception of mountain ghosts, the place where the mountain gay is almost a "forbidden place", which is similar to "not exploring the mountains". Besides, the mountains are steep and the forests are deep and the roads are dangerous. However, when you reach this cliff, you will have many difficulties. Even the mountain dwellers who have lived in western Hunan for a long time will rarely come to visit, let alone "maintenance".

Perhaps it was thousands of years ago that the original ancestor grandmother hid the mountain gut and laid out this wonderful barrier that could hide from the eyes of all living beings with amazing works?

Meng Jinsong walked forward a few steps, almost close to the edge of the cliff, and greeted the charlatan again: "Come and see."

The altitude of this mountain is less than 1,000 or 800. Even if the weather is sunny, there will inevitably be wind. That location is really dazzling. Even if it is a charlatan who has experienced many big events, he cannot stop being frightened.

He walked over with a step.

Meng Jinsong pointed down: "If you look carefully, it may be a little dark. If you try a few more angles, you should be able to see the mountain."

There is a mountain in the cave? There is a mountain in the cave?

The charlatan almost forgot to be afraid. He rubbed his eyes repeatedly, just as if rubbing could increase clarity. He moved his body position from time to time, and even clearly saw it, he blurted out: "Fenglin?"

Meng Jinsong nodded, raised his hand and gestured to a position: "If you have been to Wulingyuan, you should have seen the most famous scenic spot there, the Sandstone Peak Forest. It is almost the same here. The bottom was originally a low valley, and there was also a small peak forest. But later, I don't know that the ground collapsed tens of thousands of years ago, and there was a bang..."

His palm then fell down: "The entire peak forest has gone down, sinking."

He paused and sighed: "It's a pity that this peak forest has a unique shape. From some perspectives, it looks very much like a beautiful head on a slender neck."

The charlatan didn't understand much, and he was still immersed in the shock of "sinking down": this sinkhole is definitely deeper than the sinkhole in Xiaozhai. It can't be hit by a thousand meters when you go down from the cliff.

Meng Jinsong pointed to the huge green cover again: "There is a problem with the magnetic field here, and the drone cannot be placed, otherwise it can be aerial photography, which gives you an intuitive concept: It is said that this green cover of vine is not messy, but is pulled into a certain shape. Some places are dense and some places are scattered. If you stand under and look upward, it is like looking at a huge eye floating in the sky."

This scene was so magical that the charlatan felt cold all over his body.

Meng Jinsong's tone was still so irritating: "The vines in the pupils of the eyes are very interesting, unlike other places. They seem to be born with a bit of light. When the sun comes out, they will curl up and retreat around, as if they open their eyes, open a crack, and send the sunlight down. You must know that the light is missing below, and at night, they will stretch and stretch to cover the pupils. Does it look like a person who opens his eyes during the day and closes his eyes at night? When the eyes are closed, due to the temperature difference between day and night, the dew will be mixed with the vine juice and wood oozing out of the old vine and fall down, which is very sticky. We have an image metaphor called 'Pupil Drop Oil'."

The charlatan didn't know how to answer, so he stumbled for a long time and swallowed the words back.

He imagined the scene of vines curling around during the day: the sunlight that was put into it seemed to be from the sky, with deep eyes.

"When the sunlight shines in, it can only cover one peak, and that peak is the peak that hides the mountain gland. Therefore, only the flowers on that peak can bloom. Other peaks, because they are missing light all year round, let alone flowers, the green plants shrink. We have a verse, "Beautiful head, flowers are shy," which describes this scene."

Meng Jinsong seemed to be talking to himself: "This place is too remote, and almost no one can find it. Even if it is found, it cannot be taken down. The rope brought by the herb collector is usually only a few dozen meters long. Besides, there are groups of flying foxes underneath."

"About 80 years ago, Duan Wenxi, one of the heads of the mountain ghost, climbed down. It is said that the rotten branches and leaves at the bottom are one or two meters thick. Moreover, because of the sunshine, humidity, depth, and temperature, the environment at the bottom is completely different from the ground, the environment at the bottom is self-organized, forming a closed and unique ecosystem. Duan's diary said that he had bumped into a white mouse weighing more than 20 kilograms under his head..."

This charlatan knows: the species in the sinkhole, because the environment is closed, the competition for survival is simple but fierce, and will try their best to evolve themselves to adapt to the environment. Take the common palm bamboo in the south for example. It is usually only two meters high, but in the sinkhole, in order to compete for the light of sunshine, they can only grow desperately, and often reach seven or eight meters high - because if you don’t grow desperately, you will have a dead end.

It’s really not easy to live, not only people, but also plants.
Chapter completed!