There is no night or day here, and it is always in a low-light environment.

Zhao Xinghua and Xie Yunhao cautiously climbed towards the location where the caveman appeared.

There are many holes carved out of the cliff wall for grasping and stepping on, which should be the path that cavemen usually go out and about. This height is still thousands of kilometers away from the valley floor, and if you slip and fall, it is inevitable that the bones will be gone.

Zhao and Xie are quite good among humans, even if they have not specifically learned rock climbing, relying on their evolved physical strength and balance ability, they will soon reach the location where the caveman appeared without danger. This is an artificially dug hole, more than two meters square. There is a curtain woven with vines hanging here that serves as a door.

Zhao Xinghua made a gesture, and these basic tactical movements were taught to him by Luo Guoquan, the deputy captain of the Suishi Special Service Team.

Xie Yunhao nodded slightly to show understanding.

Zhao Xinghua slowly took out the war knife, stuck it on the stone wall next to the cave entrance, picked a gap in the curtain with the war knife with one hand, and looked inside. Before he could get close to his face, he smelled a foul smell, urine and mixed with blood.

He pulled a bullet case out of his pocket and flicked it in with his left thumb.

The brass shell arced through the air and landed in the dimly lit cavern with a crackling sound. Zhao Xinghua waited for a few more seconds, but seeing that there was still no other sound or sound, he opened the curtain and entered the "room" against the wall.

The roof of the shed here is hung with ropes that Li Xuan calls "glowing mushrooms", and this fluorescent space is very messy, some ceramic vessels are black and mottled, the fire has been extinguished, a few wooden and bone weapons hang on the wall, and a few clothes made of animal skins are placed haphazardly on the wall. There was a huge wooden frame, covered with a thick layer of dry thatch, which was supposed to be the caveman's bed, and everything here looked like the rooms of the bachelors before the end of the world, messy and sloppy.

The source of the smell was next to the fire, where an animal resembling a large lizard had been torn into pieces, and the entrails and blood were multiplied in a clay pot, where the intense fishy stench came from.

At this time, Xie Yunhao also opened the curtain and walked in.

"Did you find anything?"

"No, the caveman may be single, the cave is not large, it is not clear if it is its temporary habitat or its fixed nest."

"This thing smells so bad, can it eat it?"

"Food is scarce here, and they have to eat more protein in order to maintain a strong body. They won't give up on any meat, maybe their sense of taste and smell, like that, has deteriorated severely, and in their mouths it may not be so unpalatable. ”

"It's strange that it's been at least two thousand years since we came into contact with humans here, and they haven't mastered metal smelting yet?"

Xie Yunhao couldn't help but sigh as he looked at the weapons on the wall.

"I don't know if there is any metal ore here, and even if there is, it is very difficult to smelt, the underground air is thin, the oxygen content is not high, and it is impossible to produce a high-temperature flame, so it is very difficult to smelt metal. What's more, even if it is our surface civilization, two or three hundred years ago, on the vast continents of Africa and the Americas, human beings still live a primitive and backward life, and they are not much stronger than the cavemen here. ”

"This is also true, otherwise there would not have been a case in 1893 where 50 Rhodesian infantry and 4 Maxim machine guns easily repelled the attack of up to 5,000 Zulus, leaving 3,000 corpses on the battlefield."

"There's nothing too valuable here, and the only thing we're interested in taking away is these 'glowing mushrooms' that act as chandeliers. ”

Zhao Xinghua was a little regretful, but he didn't expect that the first caveman residence they visited was the home of a poor ghost, and unconsciously, he kicked the extinguished fire with his right foot wearing military boots, and a round object that was burned black rolled out.

It was a skeleton, and without looking closely, Zhao Xinghua could confirm that it was a human skull.

After the apocalypse, human bones that have been eaten by zombies can be seen everywhere on the streets of the city, and human skulls after weathering can also be seen everywhere, and Zhao Xinghua has become accustomed to it.

"They're still eating people."

Xie Yunhao followed Zhao Xinghua's gaze and saw this skull.

"But this is the underground world, a world that should be isolated from the civilization on the surface, how can there be human skulls?"

Zhao Xinghua asked rhetorically with a trembling tone.

"Can't they have come back to the ground?"

"I'm not sure, let's search carefully, if this is not a modern man, then it means that this underground world is not only these apes, but also humans like us."

"Even if there were, maybe they came in tens of thousands of years ago, the primitive Homo sapiens you are talking about."

The two of them searched carefully in the room again, this time they lifted the bed, rummaged through the animal skin pockets, and finally found a jade product in a corner, this jade that was obviously artificially polished had been broken and only a small piece was left, and it was very worn, it was not a regular shape, and there was no carved text.

"Let's go back and show this to Tang Haoran, hoping that this archaeological researcher can confirm what this is."

……

When Zhao Xinghua handed the jade fragment he found to Tang Haoran.

Tang Haoran had already snatched it over, and asked at the same time:

"Where did you find this jade pendant?"

"How can you tell this is a jade pendant?"

Zhao Xinghua didn't have much hope at first, but he didn't expect Tang Haoran to recognize the origin of this thing with just one glance, which made him inevitably have expectations in his heart.

"This is the foot of a dancing girl jade pendant, I once excavated in a Han tomb, that one is also broken, I re-glued it piece by piece, even the pieces the size of rice grains I found the original order, and it took three nights to put back the prototype. Of course I can recognize the big piece of your hand. ”

"You mean this was found in the Han Tomb before?"

"Yes, in 11 Han Dynasty tombs in China, about 30 jade pendants in the shape of dancing girls have been unearthed, although the characters are different, but they are generally the same."

"Since so many quantities can be unearthed, it shows that this is still very common."

"No, the dancing girl jade pendant of the Han Dynasty was not available to ordinary people at that time. As far as the 11 tombs where this jade pendant was unearthed, the tomb owners were all princes, and the people who directly used the dancing jade pendant were all queens or favorite concubines, or concubines of maikos, except for the king of Chen Qing of the Eastern Han Dynasty. ”

"Then you said that you found this jade pendant in a caveman's nest**, and there is a human skull, what does it mean?"

"Anyone has been here during the Han Dynasty?"

"Yes, and there are still their descendants alive here!"