Prehistoric husband and wife salted fish turn over

Brother Ben muttered in a low voice: "Why didn't you take it out earlier? What's this called?"

Sun Zhixin said: "Flashlight. It is like a torch. It consumes things when it is lit. It cannot be illuminated indefinitely, so use it sparingly. Use a torch when you can, and use it when it is critical."

Everyone looked at the distance from the flashlight to the opposite wall, and judged that this passage had come to an end.

Looking at the top of the head again, there are obvious traces of a cave collapse. It is presumed that the cave that looks like this hall was formed by the collapse of the ground.I just don't know if its structure is stable or not, and whether there will be another danger of collapse.Sun Zhixin flickered the flashlight around for a long time, but he was not a professional geologist, so he really couldn't tell.

Looking further down, everyone couldn't help but gasped.I saw that the depth below the cliff was nearly [-] meters, and at the bottom was a deep pool, which accumulated a lot of water.If it wasn't for Sun Zhixin's quick reaction just now, if brother Ben fell... the result would not be the same.

Sun Zhixin shook the flashlight around, and found a path to climb down more than [-] meters to the right. It was a slope with strange rocks and rocks. The steepness was not very steep, but it was difficult to walk. His feet were covered with animal skin boots and were still pricked by many small stones, so he could only move forward cautiously, especially since Sun Zhixin had not passed through the tender soles of prehistoric humans who ran barefoot all day, it was even more difficult to walk.

The five of them went all the way down the relatively gentle passage, and finally came to the water's edge.I took a photo in the water, it seems that there is no fish in the water, but the water quality is clear, like the groundwater seeping from the ground, or the water seeping and dripping from the top of the cave. And dark pools.Sun Zhixin wanted to try the water, but Qi Geli stopped him to try the water and said, "I can drink it."

The five of them stopped here to replenish the water they drank in the bamboo pot, and Sun Zhixin shone a flashlight into the water. The penetration of the light in the water was obviously not as good as that in the air. I couldn't tell how deep it was, but I thought it wouldn't be shallow. .In order to save electricity, Sun Zhixin turned off the flashlight, and the surrounding area immediately became dark.

"Well, there are advantages and disadvantages here." Sun Zhixin said: "The disadvantage is that it is not very safe here, whether it is because this dangerous path is easy to fall into the pool or it is not sure whether it is still in danger of landslides. Neither is a good thing. The good thing is that no matter what, even if the water source outside is frozen when winter comes, there is still this water source in the cave.”

Sun Zhixin didn't know if this planet would have the climate of the Little Ice Age. If so, the temperature throughout the cold winter must be extremely low, and it is entirely possible that it will be minus [-] to [-] degrees.Such a temperature, for the prehistoric humans in naked clothes, going out is undoubtedly looking for death.And there is a water source in the cave, so there is no need to go out in winter to take the risk of picking up snow to melt water, or find other water sources, not to mention the insulation effect of the rock formations in the cave, it will definitely not freeze.Finding this is good news, but it is not sure if there are other potential dangers.

Looking around, I stood at the bottom again and used the light of the flashlight to illuminate the top that I just came down from. I found that the vertical rock wall at one place was relatively flat and smooth. Although it is impossible to go up and down from there, if you put it on A pulley...perhaps women and children can draw water from it safely without stepping down.

It is not difficult to make a potter's wheel. It may take a lot of work to make such a thing in prehistoric times, but it can definitely be made.In addition, the wooden barrel is not difficult to make, and the rope can be braided with flax. In the end, it is only necessary to build a fence to prevent people from accidentally falling.Sun Zhixin looked up at the highest point and thought about it for a while, and he already had a plan in his mind.

Next, by the light of the torches, a simple map of the passage was drawn in a notebook, and a sketch was drawn about the preliminary idea of ​​the equipment for pulling water by the potter's wheel.

It took less time to come back than to go. This time, the five of them chose the relatively wide passage in the middle to advance.This road is also full of gravel, but it seems to be much easier to walk than the one just now.The entire passage has little ups and downs, and it can be considered spacious.There is a deep ditch that goes along with this road. Sun Zhixin turned on the flashlight and took a picture. He found that it was about 50 to [-] meters deep. With that depth and the sharpness of the rocks underneath, falling is no joke.

Tarim and Alpha walked last, finding a place to put a torch while walking.There are no forks in the whole road, which seems relatively safe.

After walking for a while, a strange underground structure appeared, like a long and narrow stone room. On the side opposite to the deep ditch, there appeared stone platform-like structures scattered throughout the stone chamber.They are not tall, the short ones are as tall as the calf, and the tall ones are only as tall as one person. They all look short and fat, and even Sun Zhixin can't figure out how they are formed.It is said that they are like stalactites, but they do not have a smooth and hard surface like stalactites. It seems that an invisible force split the stone with an axe, and then cut off the top with one axe, and finally got such an irregular side stone platform.The largest of them looks like a conference table, or a long western dining table, waist-high, with messy and sharp edges, but the top is as flat as a tabletop, completely weird.

The further you go, the more stone platforms there are, until you walk into a hall that is large enough to accommodate about 400 people, the number of such stone platforms has reached the extreme, and they are scattered throughout the hall.

By this time, the five of them had already traveled more than [-] meters, and they didn't know how deep they had gone all the way down, but it was certain that they had already penetrated deep into the mountainside.Because it is an underground cave, the temperature seems to be much lower than outside, and the five of them now feel slightly cold.At the same time, the air in the whole hall felt very fresh. Although the flame of the torch did not shake, the fresh air undoubtedly told Sun Zhixin that there must be other air inlets farther away, in other words, maybe other inlets and outlets.

After all, this mountain is very big, and it is not impossible to have other entrances and exits. This makes people feel that while entering and exiting from other places, there are hidden dangers in safety.Having other exits means that if something happens to the cave where Sun Zhixin and his party came in, they can also enter through other entrances and exits, without worrying about the danger of being sealed in the cave and unable to get out.But from another point of view, having other entrances and exits means a loophole in defense. If there is an advantage, there must be a disadvantage. It is true that everything complements each other.

It seems very irrational to explore those exits now. The five people obviously lack manpower and tools, and they can only wait for the time to actually live in before exploring.Either blocking or guarding, we must take care of these spare entrances and exits at that time to prevent security loopholes.

A hall like this is enough to accommodate the two tribes living together. There is no need to go deeper, and there is no need to continue to take risks. After all, this is the prehistoric era, and the things Sun Zhixin brought are not real professional expedition equipment.For the unknown underground cave, it is no exaggeration to say that it is a crisis every step of the way. It is like a giant beast lying quietly. Who knows what will happen once it wakes up?It is better to be content than to seek more, take it as a gift of nature, and accept this gift with a grateful heart instead of greedily begging for more.

I turned on the flashlight again to shine in front of me, but it was still dark and twisted, and I didn't know where it was going.The five of them discussed it, and they all agreed that they could not venture deeper, they just need to explore the cave like this hall.

At present, the five people each hold a pile of torches and act separately, using the entrance and the far end leading to a deeper exit as the boundary, to try to find out this hall as much as possible.Sun Zhixin took eleven torches and chose a direction to investigate.Seeing the five people drifting away, the torches were lit one by one, and then scattered to various parts of the hall, revealing the original appearance of the entire hall bit by bit.

Compared with the other four, Sun Zhixin obviously started the exploration work more meticulously. The direction he chose was not completely random, but with a certain purpose.His goal was the deep ditch that followed along the way first. This thing brought great safety hazards. Who can guarantee that no one will stumble and fall into the hole in the seriously insufficient light?With that depth and the sharp stones underneath, it is undoubtedly comparable to a trap full of sharp knives at the bottom of the pit. If you fall down, you will definitely die without any suspense.Sun Zhixin couldn't feel at ease without ascertaining its existence in this hall.

When Sun Zhixin reached the destination, he couldn't help being stunned. He didn't use a flashlight to illuminate it, only the light from the torch. Before he could see clearly, he discovered that there was a natural stone bridge about ten meters away from the entrance.The stone bridge was about two meters wide and six or seven meters long, and a bottomless ditch suddenly appeared underneath!

Its depth is really frighteningly deep. Sun Zhixin took a flashlight to illuminate it, but he couldn't see the bottom at all.The irradiation distance of the wolf-eye flashlight is very far, and its light spot can be vaguely seen from 1000 meters away.And this deep ditch is probably far deeper than this distance, and the result of the light is dark, like a big hole in the earth, and all the mysteries are hidden in the unknowable darkness.

Compared with this deep ditch that meandered along with the five people, it directly became a small ditch.The small ditch was cut off here, and a small waterfall formed in the gap. Only the calf-thick water flowed down, and was swallowed by the deep ditch without a sound. Except for the slight sound of running water, there was no other sound at all.