There are a lot of traces of life in the strange base underground, and everyone is searching for holy clothes here, but also curious to know what kind of people have lived here. As they explored room by room, more and more clues appeared in front of everyone's eyes, and finally in the most critical room, which seemed to be the owner's room, they found a picture that could prove their identity.

This is a portrait of a person painted with special pigments, and the colors are very bright, as if they have not lived through the years. In the scroll stands a man with a similar appearance to a human, wearing clothes made of animal skins. If you look closely, you can even find that this man's ears are very different from human eyes, the eyes are vertical pupils, and the ears are pointed, which is obviously not an earthling.

"Isn't it true that the people who live here are earthling," Yuan Dou said, "and the man outside is also like this?" ”

"I'm not sure, he's been unkempt and can't see clearly," Lian Yan said, "If what he says is true, maybe he should look like this." ”

"Look again and see if there's anything else of value." Yuan Dou said.

So far, although this is the personal room of the base owner, there is not much exploration of the base, and there are many places they have not visited. After leaving the room, they continued along the straight passage, the further they went, the cooler the air became, and at the same time, the passage gradually changed. After about ten minutes, the passage they passed through was no longer the high-tech metal passage, but a circular wall like a cave, and the rooms they passed by gradually moved from the modern era to the past, as if they were moving against time. But in fact, there is nothing special about the environment they live in in Yuan Dou's perception, that is to say, this is a civilization where advanced and backward coexist, a civilization similar to people.

Moving on, the group came to a boxy passage, much wider than the previous circular passage, and paintings appeared on the walls, which were also neatly cut into squares. Just when everyone wondered what this was about, the wall suddenly moved, and the square bricks, about two meters wide, began to slide under an unknown force, and the pattern on the wall also changed position with the sound of the stones rubbing. At the same time, the passage that had been smooth for the same walk was also blocked by the square boulder, and the back road was also blocked, and they were trapped in this space for a moment.

The crowd was not impatient because they were trapped, and after carefully observing the patterns on the walls, they gathered together to start a discussion. "On the walls, I see some hunting patterns, the patterns are very rough, and the tools used are very primitive, but I just can't see what their prey looks like, which is a little strange." Yuan Dou said, and everyone also said the same discovery. This discovery was not enough for everyone to find the key, and they couldn't help but fall into deep thought. In the silent thinking, the atmosphere was depressed, and it didn't take long for Yuan Dou to break the silence, "Don't care so much, if you can't understand it, you won't understand, let's try to open the way forward first, we can't be trapped here all the time." ”

Although there was a lot of interest in the paintings on the walls, it was decided that they would leave the place first, and that the first thing to do was to find the holy garments, and nothing else mattered. So, Yuan Dou started the temptation, and in the face of the boulder blocking the way, Yuan Dou didn't think much about it, took out the holy sword and slashed it. The effect is there, but it is not big, it only scratches the stone that blocks the way, but it cannot completely destroy it. Then Mototo stepped back and let the mecha try, and Senju took a huge wave and shot it, the bullet shot out like a jellyfish, and then hit the surface of the stone, and then dissipated. Yuan Dou noticed that at the moment when the stone was attacked, there was an inexplicable energy reaction on the surface of the stone, and after touching it with his hand, he found that he actually felt amazing energy in the stone.

"There is a problem, the energy contained in this boulder is more than you can imagine, don't continue." Yuan Dou said.

"Since you can't do it, then you have to outwit it," Lian Yan said to Yuan Dou with a smile, "It's time for you to be useless again, aren't you disappointed." ”

"I'm disappointed, can't I concentrate on paddling?" Yuan Dou said, "You come, you come, I'll take a rest." "It's a break, but Mototo was also observing the walls while they were looking for the mechanism, and although every painting on the wall was similar, there were still many different details. Mototo is not very interested in these details, but he is very interested in the story in this painting, and while guessing the meaning, he plays the time to rest.

By browsing the patterns on the walls and ceiling, Yuan Dou came up with a guess in his mind. He thinks that perhaps the mural is not a hunting scene, but a scene of how to learn to hunt. There is no prey in the mural, but a tall human figure appears too much, he is like a mentor teaching others to use attacks, and every time he appears in the mural, the others look at him with a posture of looking up, further proving Yuan Dou's opinion. Yuan Dou, who was obsessed with the mural, was soon woken up by Lian Yan, and it turned out that the others had found the key to opening the mechanism.

When he came to the crowd, a large pit had been dug in the ground, and in addition to the earth, there was a special device. It looked like an open mouth of a fish, and the fish had something in it, but it was in the depths, and it had to be deep into it to get out. Seeing this, Yuan Dou asked suspiciously, "What is this, the mechanism is hidden here?" ”

"It's confirmed everywhere, only this place is very special, but there seems to be a mechanism here, and we have to be careful." Liyuan said.

"So what now?" Yuan Dou asked.

"Find a tool and take out the contents," said Liyuan, "and see a little light, maybe it's the key to open the door." ”

The fish's mouth could be opened for an adult to enter, but it was so dark that even Yuan Dou's night vision could not be seen clearly, but in the very center of it, there was a point of light like a black pearl. When Yuan Dou began to think about how to take out the contents inside, Lian Yan suddenly stopped everyone.

"Come here and see if this mural is the same as that." Lian Yan refers to the object in the hand of a person in the mural, and the fish mouth seen in front of them. Yuan Dou carefully compared it and found that in addition to some mismatches in size, the shape is indeed very similar. In addition, it can be inferred from the mural that the part of the fish's mouth hidden in the ground is a snake's tail, some of which resemble strange creatures, and some of which resemble carvings.