Such a big movement can't be hidden, and the forest rangers in the distance have already found the fireworks in the sky, and they thought that there was a forest fire, but they were scared. This is the capital, next to the 4A National Park, there is a forest fire.

But the fireworks in this well came and went quickly, and the lower layer was lit first, and the flames rushed higher and higher. Anyone who has studied chemistry knows that the carbon dioxide produced by combustion is theoretically heavier than oxygen, which will sink and extinguish the lower flame. But this is not the case, and the carbon dioxide is also blown to the upper layers when the air is heated. However, when the oxygen in the lower layer is burned out, it will also be extinguished quickly.

"Hey, why is this well still burning?" The left and right wells were lit at the same time, one had been extinguished, and the other was still swaying upwards, the situation could not be more obvious, "There is a passage below to ventilate the bottom of the well!"

“…… Will anyone find out that we set fires. "Xiaomi's focus is clearly not on the same channel.

"I can only move faster. ”

After about ten minutes of burning, the fire in the well has been extinguished, Chen Ergou used a long stick to extinguish some sparks, and the air circulation was almost the same. Then he took out the hook and put one end around the stone and went down into the well.

"Be careful. "Millet instructed.

Entering the bottom of the well, the temperature was quite high, and there was some charcoal fire under his feet, so Chen Ergou simply soaked urine to extinguish them all.

In his experience, it's a qanats.

There is little rain in autumn and winter in the capital, and it has been dry for a while. Ordinary wells are not fundamentally different from qanats – digging holes down from the surface where there is no water and digging all the way down to the aquifer, which is the phreathic layer. Groundwater naturally seeps out of the surrounding strata and accumulates at the bottom of the well.

The special feature of the qanats is that they only dig a sloping culvert at the bottom of the shaft through a series of shafts to direct the water to a distance. He once dug a manhole in the Sahara Desert with his own hands and found an underground river.

He explored carefully underground, and could clearly feel the air currents rising, and groping his way along with his perception.

A hot stone statue that had been burned by the fire on the wall of the well revealed its true face from the ashes, and wiped the surface of the stone with his clothes, "The height of the Buddha statue is about 30 centimeters, and the carving skills are very clumsy, and there is no collection value." …… The air flow came from behind the stone statue. ”

He shook it so hard that the strength of a Hercules didn't even move.

Rotate, but also do not move.

"Huh, can you help you scan this?"

"Drop, yes. ~”

"Thank you. ”

"No thanks. ”

A layer of white light centered on the dog's egg and emitted from all sides, gradually spreading upwards from the bottom of the well like water, and the millet at the entrance of the cave was dumbfounded. After Chen Ergou scanned it, he found that it was connected to a whole stone, and the movable interface was behind him, which was difficult for him.

Take out the sapper shovel to hollow out part of the rammed earth behind the stone, and then kick it the stone statue, "Click~"

After a foul sound of stone rubbing, there was no movement again. If you don't pay attention, you may not be able to see a crack under your feet.

"My dog, I hear a noise, what's down there?" Mi yelled in a choked voice.

Chen Ergou ignored it, "You wait first, look at the tablet, I have already released the dragonfly, and I will be notified if there is a situation." ”

"Oooh. ”

Push the ashes and dirt from the ground to one side, revealing a stone slab. He continued to pry open the slab with all his might, revealing a stone staircase underneath.

You can already hear the whirring wind blowing from the bottom up.

A little more cautious, turn on the lights to the maximum and explore down. The passage was not long, and it was dripping with dirt, and it was clear that the cave would not last long. There is a drain hole next to it, which can drain the water stains in the well all year round. After walking a few steps to the side of the hole, I realized that I had passed through the gap between two huge rocks. But the hole was so low that he had to crawl on the ground.

After crawling through the stone crevice, the passage was slightly wider, but Chen Ergou's height still had to bend over and walk 90 degrees here. Water stains, cold well water, damp sediment and gravel can already be seen.

This tightly packed mud, sand, and gravel is scientifically affectionately called sediment. Over the long years, these sediments have accumulated layer by layer, and with the geological changes of the vicissitudes of the sea, they have been buried deep into the ground little by little in a suitable environment.

This project is not small, with the help of dogs and flashlights, groping forward.

At some point, it seemed to rain on me: crystal droplets of water were falling above my head and in the ground around me, turning into a pleasant ticking sound.

"An underground river. ”

Under the light, in a mist of water, he continued to explore and move forward. This is the great miracle created by the qanats, ancient man-made engineering and naïve geographical concepts. Tunnels were dug through shafts to connect the high aquifer (shallower from the surface) and the lower aquifer (lower aquifer is deeper), and the flowing groundwater was artificially introduced from the aquifer to the aquifer.

I don't know when the dog egg camera light has been turned on, recording what I saw and heard along the way.

I heard that the ancient people dug a well to look at the feng shui point point, I don't know if it is a coincidence, this well is located on the side of a fault rising plate, the fault activity formed fine fault mud, hindering the flow of water in the aquifer to the lower place, which is equivalent to the formation of an underground reservoir.

When I was a child, I watched the well used for irrigation in the field pump out so much water every day, and it was amazing. Then imagine that there must be a huge pool of water underground, and the big pool must be covered with this layer of land.

But where does the water come from, and why doesn't the land collapse? Because I don't understand or know, I imagine what is going on, but imagination is generally unreliable. Later, I went to college to learn this knowledge by mistake, and it was only after I solved the confusion of my childhood for many years.

But magic is magic, that's not what he's here for.

We had reached the end of the dark river, and finally saw the upward passage, and the ground was dry again. The distance of more than ten meters was repeated. He estimated the terrain in his heart, the depth of the well was more than ten meters, and he crossed this large section of the road, and he should have gone around to the cliff of the hillside behind the temple.

"Could it be an escape route, what kind of people with status once lived in this Shigong Temple?"

Before he could figure it out, the passage ahead suddenly widened. Of course, this is also relatively spacious, only about 10 square meters, with a wooden bed on one side, and some daily necessities such as clay pots.

In addition, the most conspicuous thing is the few wooden boxes placed under the bed.

"Huh~ The system is honest and doesn't deceive me!"

On the ground, Xiaomi was holding the tablet in a panic, and she seemed to have heard the sound of the fire siren. But the fire has been extinguished, so why did you react so quickly? If two public figures are caught setting fire to play in the mountains in the middle of the night, what ...... The whole world is wonderful.

But she wasn't very worried about the fire, but the yin wind that lingered around her body all the time made her goosebumps fall to the ground, holding her mouth, blue thin mushrooms, but she couldn't cry, "Why can't you come up yet." When Chen Ergou comes out, she must warn him well: Life is not a TV series, how can there be so many adventures.

As he complained, the rope moved, and the light shone out from the well.

"My dog~"

"Well, it's me, back off. ”

The speed of the automatic hook cable is very fast, and a turn over has returned to the surface at the wellhead. Nothing seems to have changed except for the mud and moisture all over the body, and the backpack full of backs.

Xiaomi gasped a few times, "555, you can count it, the fire alarm under the mountain has begun to search the mountain." ”

"Don't be coquettish, let's go. ”