Although the miner's lamp overhead could only illuminate a small part of the scene in front of them, it was enough for the two of them to be sure that it was not a natural underground waterway, but an artificial one.

The waterway is no less than three meters high, with a rounded arched silhouette and a murmuring stream below.

The water is clear, and when you look at the bottom of the water by the light, the rocks under the water are washed out by the current, and you can no longer know the earliest appearance of the bottom of the waterway.

In contrast to the bottom of the water, the arched waterway above the surface of the water is very smooth and smooth, and there are traces of petroglyphs on it.

Yun Qianfeng took out the lighter in the waterproof bag, lit the fire, and made sure that the fire was burning normally, then he and Luo Lina climbed up to the waterway, stood up, and found that it was almost the same as Yun Qianfeng's judgment, the water flow here was smoother than the river water in the dam before, and the water depth was about a little above the knee.

The two of them turned the miner's lamp above their heads to astigmatism, so that although the distance was close, they could see the panoramic view of the entire arched waterway.

They found that in addition to below the height line of the water potential, the petroglyphs above were relatively complete.

The most surprising thing is that on the inside of this arc-shaped waterway, those petroglyphs are actually a whole, treating the entire waterway as a complete canvas.

This results in a very eerie immersion effect.

Rolena's attainment of artwork far surpassed that of Yun Qianfeng, and she said in surprise:

"It's amazing, this painter is based on the scenery in his memory, in the middle of the waterway for his own position when he was observing, to make these petroglyphs, we walk here, you can see the scene that the author saw at that time, although the painting is rough, the color is also slightly monotonous, but it does not affect you to see what he sees."

Yun Qianfeng looked at the murals, the colors were basically brown, red, orange and purple black, and these simple colors composed of mountains, grasslands, oryx, ostriches, elephants, giraffes, etc., under the rough technology, one by one was vivid and extraordinary.

Luo Lina took out the saber dagger at her waist and came to the petroglyphs, gently scraped the various colors with the tip of the knife, then twisted the scraped stone powder with her hands, sniffed it with her nose, and finally licked it with the tip of her tongue, then shook her head and sighed:

"Purple-black is a pigment made by grinding crystals containing manganese chloride, red is a mixture of animal blood and fat, and brown is a powder of iron oxide ore.

The outlines of mountains and animals are clearly painted with fingers, and fingerprints can be seen at many stops, grasslands are painted with poultry feathers dipped in paint, and animal hair is painted with animal hair tied into a round brush dipped in paint. ”

Yun Qianfeng doesn't have Lorina's ability to distinguish paint and observe painting methods, but Yun Qianfeng also knows a little about this kind of paint production and painting method.

"In other words, the petroglyphs here are prehistoric petroglyphs."

Lorena nodded and said:

"That's right, the paintings here are from the age of the Sahara Desert, which means that these petroglyphs are at least 10,000 years old."

Ten thousand years ago, the Sahara Desert was in the wet period of the Cambrian period, a plain full of tropical plants, full of vitality of flora and fauna, and the contrast with the desert that can now be called the sea of death, people can't help but feel the shock and sadness of the vicissitudes of this land.

No one can understand why the primitive painters of more than 10,000 years ago would paint such magnificent colors in such a waterway.

Yun Qianfeng and Luo Lina studied for a while, and only came up with two possibilities.

First: idle.

Second: this may not have been a waterway in the first place.

The two of them waded through the knee-high water and went upstream.

For the safety of the soles of their feet, they had to take off their fins, change into hiking boots, and let the cold water pour down the uppers like the inside of their shoes, soaking their feet uncomfortably.

It is difficult to go against the current, so their speed is very slow, which also makes it natural for them to see the surrounding petroglyphs clearly.

The two of them were side by side, one on the left and one on the right, and two astigmatic miner's lamps illuminated three or four meters in front of them clearly.

It didn't take long for the petroglyphs of this complete view to begin to show traces of human beings.

None of them had any clothes, some were armed with spears, irregularly shaped shields, some had rope stones in their hands, and some even had only a short, sharp stone knife in their hands, and they hunted the behemoth beasts.

Luo Lina was immediately attracted by the figures on the petroglyphs, and walked into a few steps with the water, and looked at it carefully for a long time before saying:

"The petroglyph is very realistic, and judging by the size of these hunters compared to elephants and bison, these people are extremely tall and strong, especially the limbs are extremely thick, and the head circumference is much larger than that of modern humans, if I guess correctly, these people are probably Neanderthals."

Yun Qianfeng was stunned, he knew the Neanderthals, after all, the genes for modern hypertensive cerebral infarction came from the genes of the Neanderthals.

Of course, in prehistoric times, this gene was not only not a disease, but also a virtue.

This gene allowed the strong Neanderthals to dare to hold a stone knife and a large beast of hard steel, because the normal injury would not cause them to bleed profusely at all, but would stop the bleeding quickly because of the strong blood clotting gene.

"Didn't Neanderthals find fossils in Europe?"

Lorena shook her head and said:

"Neanderthals have been found all over the world, just like the Heidelberg people in Africa have also been found all over the world, so there will be a "great Neanderthal concept", I have collected a lot of fossils of primitive human bones, only Neanderthals can have such a strong and tall body, it is hard to imagine that these petroglyphs were painted by Neanderthals tens of thousands of years ago, but their brain capacity is larger than that of modern humans, and it is not very strange to have such intelligence. ”

Yun Qianfeng shook his head with a smile and said:

"People with cameras rarely take pictures of themselves in the landscape, and the author of the petroglyphs may not be Neanderthals."

Loryna disagreed, saying:

"Do you think that in a group of Neanderthals, a modern Homo sapiens can live?"

Yun Qianfeng was noncommittal and said:

"I can't be sure, but it's undeniable that the painter can't see himself in his eyes."

The two of them didn't delay their trip too much, and debated as they walked, of course, they couldn't argue who was right and who was wrong.

Because no one can prove whether it was a Neanderthal or not.

This made Luo Lina feel that Yun Qianfeng did not respect science and was messing around.

And Yun Qianfeng enjoyed the results that he could make Lorena angry.

However, Yun Qianfeng soon didn't enjoy it, because the goblin-like woman in front of her saw Yun Qianfeng's micro-expression, so she smiled disdainfully:

"Yun Qianfeng, do you know, you behave like a naïve teenager, psychologists say, when you enter puberty and start to make a girl angry for no reason, then it proves that you are in love with her.

Yun Qianfeng, I warn you, don't fall in love with me, because I don't like men. ”

Insult! Yun Qianfeng felt a great humiliation, but he couldn't find the angle to deny Rollina's words, because he also knew this psychological common sense.

So he chose to remain silent and walked in front of Lorina, ignoring her.

But in fact, the silent Yun Qianfeng's heart was turbulent, all because of Rolena's words.

"What's going on? Why do I have an indescribable emotion towards this nasty woman, like attraction, but this attraction makes me a little afraid, how is this possible? I'm already satisfied with Shuying, and Shuying is definitely the object of my infatuation, why do you have such a mixture of contradictions and fears of Rolena's hazy first love? ”

Luo Lina behind him was no calmer than Yun Qianfeng, and she was also full of wind and thunder.

"No one has ever been able to influence my emotions so easily, let alone make me angry, or even argue with him like a child, this is not me, I am not such a person. Why is that? No, it can't be, I can't like a man! It's impossible! But why is that? ”

In this way, the two people who seemed to be familiar with the activity just now fell into the state when they first entered the crack, and they all didn't say a word.

After walking like this for more than half an hour, Yun Qianfeng was suddenly stunned by the content of the petroglyphs in front of him, and hurriedly said to Lorina:

"You see, primitive people have drawn astronauts, what's so strange about living with Homo sapiens?"

Opening your mouth is the trigger for a fight.

Lorina looked at the light and saw a figure with a pure round head on the petroglyphs, their clothes were very heavy, and their faces had no facial features except their eyes, which looked very much like astronauts.

This kind of image is actually very common in prehistoric rock paintings, but no one in modern times knows what it is.

So Yun Qianfeng's words, Luo Lina couldn't refute it, and when a nameless fire started, she twisted her waist and walked quickly to the front, and her feet made a splash.

Yun Qianfeng grabbed Luo Lina's arm and said:

"Don't go, look at the petroglyphs, it's very wrong, I just remembered, there is hunting here, there is also the content of bringing the prey back to the dwelling, but there is no content of these Neanderthals eating as you said."

Lorina wondered:

"What's so strange about that?"

Yun Qianfeng pointed to the petroglyphs in front of him and said:

"You see, they carried their prey and followed the astronauts, and they didn't want to eat a bite, where are they going to send the meat?"

Luo Lina found that she was really very easy to be provoked by Yun Qianfeng, just like she said, this is not herself, but she just couldn't help it, and when she heard him say astronaut, the nameless fire in her heart suddenly came out, and said loudly:

"That's not an astronaut!"

Yun Qianfeng saw that Luo Lina was angry, smiled happily, and said:

"Hurry up and see where they send the meat, and chances we'll be able to guess where the hell we're going!"

After speaking, he walked forward quickly with happy and cheerful steps, and Rowena behind him clutched her chest, feeling that she was going to vomit blood, and took a few deep breaths before she quickly followed.

Because Yun Qianfeng is right, this petroglyph is very realistic, and it can indeed give them a glimpse of the past.

Thank you for the scourge of hell, the starry sky of looking up at the half-moon 0, and the commuter pass reward for not eating the set mask, thank you for your support, thank you!!!!!!!!

(End of chapter)