Unexpectedly, the four people accidentally fell into a device used by the Japanese army to grind ore, this is a large metal can, if you want to get out, there are only two possibilities, one is to go up along the slide when you came, that is, from the inlet. Another way is to go out of the outlet, which is now closed and has to find a way to open it.

This large metal canister called the "ball mill" is very strong, and if this thing spins, there is no way for a person to survive in it. People who don't know about the Mekong River don't know about this device, and if they know that these four people have fallen here, and activate the device, it will be dangerous.

Ma Qian looked around and said, "It's not safe here, we have to find a way to get out." The entrance we fell in just now has a big drop, and it is very slippery, and it may be difficult to get out, let's see if the outlet can be opened."

The sound of "bell" is the sound of Zhao Qingmai hitting the spiral-shaped metal plate at the exit with a hammer. Obviously, this thing can't be opened, this kind of device can only be turned on in a control room outside, and now that it's closed, it must not be opened.

The four of them looked at each other, and now there was only one possibility, that is, to go out along the way they came, and I wonder if the way out was difficult, and if they could get out, would they still return to the bottom of the poisonous honeycomb? A few people fell down in a daze, and they didn't see what the scenery was like all the way, and this time they went out, and it was a strange and difficult journey.

Immediately, Lao Niu and Chiang Mai continued to check whether the exit could be opened. Ma Qian and Zhao Baixiong packed their bags and set off to the entrance. After drilling through the circular entrance with a diameter of about one meter, the two people were presented with an iron pipe passage with a diameter of about one meter. The passage is surrounded by smooth metal, and the passage extends diagonally upwards at an angle of forty degrees. There are no parts that can be grasped by hand, and there are smooth metal walls.

Zhao Baixiong held a flashlight in his mouth, supported the metal wall with both hands and feet, and slowly crawled upward.

Ma Qian followed Zhao Baixiong closely below, and the two of them slowly left the entrance and moved upward. After a while, the two of them were sweating profusely and soaking wet, and this way of moving was really too physically demanding.

"Zhao Baixiong, you are tired of urine, why is there so much water falling on my body?"

"Lao Qian, you can't do it, that's sweat, my hands are sweating, I can't hold it anymore, what should I do!"

Both of them leaned their backs against the metal wall, looking up, really don't know how far they have to reach the end, and now the two of them have climbed up more than twenty meters, and their physical strength is close to the limit. Zhao Baixiong's hands were full of sweat, and he slipped straight, and when he looked up, his hands slipped and fell off. It is a sealed space, and once it falls, it is difficult to control the body.

Zhao Baixiong's huge body smashed on Ma Qian's body with a "bang", and Ma Qian was also smashed out of his hands and fell, and the two of them rolled down like this, sliding all the way down in the direction of the metal cylinder, which was the same as when the four people just now inexplicably slid down.

Ma Qian didn't make a sound this time, he didn't complain about Zhao Baixiong, but waited to fall back into that "ball mill" again and join Zhao Qingmai and Laoniu.

"Knock knock" twice, the two people fell to the ground, the flashlight fell to the ground, and the surrounding environment could not be seen clearly. Zhao Baixiong shouted: "Oh mom, I fell to death, I said Burmese boy, come and help your brother, Lao Qian and I are back again."

After waiting for a long time, I didn't see Lao Niu and Zhao Qingmai coming, the two felt very strange, what happened to Lao Niu and Zhao Qingmai, didn't you find that the two of us fell?

Ma Qian struggled to get up, he picked up the flashlight and shone it around, stunned, this was not the inside of the original "ball mill", but another strange place. "I'll go, what the is this place?" Zhao Baixiong was also so surprised that he couldn't do it. Just now, the two of them didn't encounter a fork in the road all the way up, why did they fall into another space when they fell?

"Hell, what the hell is going on?" Ma Qian couldn't figure out what was going on at all, he shouted a few times Zhao Qingmai and Lao Niu, but didn't hear their answers, it seems that he has indeed been separated from them, this is no longer the big metal can just now, what is this place?

At this point, the two of them began to look at the place, everything here was black, black roof, black walls, black ground. The two of them walked forward while illuminating, and the scenery around them was exactly the same, this is an arc-shaped hole, this hole is one meter five high, and the two need to nod slightly so as not to touch the top of the hole. The cave is very smooth on all sides, and the height and width of the cave are the same everywhere you go.

The hole was not straight, and it kept turning to the left, all the way forward, and after walking for about ten minutes, it did not reach the end. "This hole is strange, it looks the same everywhere, how long will it take to reach the end? Where is the way out", Zhao Baixiong is obviously running out of patience.

Ma Qian was also in a hurry, this hole was so strange that it seemed to have no end. After walking for another half an hour, Ma Qian thought that he should go out at least three or four kilometers, but still did not find the exit, how could there be a hole in the ground, what was it for?

The two were sweating and walking, when Ma Qian's feet stepped on something and made a creaking sound. This voice was the third time, and he didn't pay attention to the first two times, because the first two times he was in a hurry to get out. But after walking a few kilometers, the worry came immediately, and this time it was a creaking sound when he stepped on something, and Ma Qian felt that something was wrong. He thought he had stepped on some stone or something, but when he looked down, he saw that it was a pile of white bones, and human bones.

Human bones, the two of them gasped, there were human bones in this closed arc-shaped cave, and the situation of the human bones was not new, but decades ago. Why did this man die in this hole, and what did he do?

"Qian, I don't think it's right, we've been to this place before, at least the third time we've passed by here, we've met a ghost, it's a ghost that has been leading us around here!"

Zhao Baixiong is right, this place has been here a few times, it turns out that the two of them are going around in circles in the cave, what is the situation, is this the legendary "ghost hitting the wall"?

"What is a ghost hitting the wall, Qian, is the ghost hitting the wall just meeting a ghost?"

"Not exactly, it's pretty much the same, when people encounter ghosts hitting the wall, they are lost in a space, and that space is not necessarily sealed. It could be a valley, a house, or a forest. When people encounter ghosts hitting the wall, they are always in circles inside, and they can't get out until they encounter an outsider who inadvertently rushes them, which is a strange phenomenon."

"Then what should we do, waiting for my brother and Burmese to come and save us?"

Ma Qian didn't answer Zhao Baixiong, but thought carefully, he secretly thought: "I fell here just now, I didn't see the entrance when I turned around, this place seems to be sealed, and as soon as the two of them fell down, the entrance was completely closed." Then the two of them kept walking forward, that is, they kept turning left, so what would happen if they turned around and walked back? ”

Immediately, Ma Qian took out a water bottle from his backpack, put it on top of the white bone, and then pulled Zhao Baixiong to walk back, this time the two kept turning to the right, and after walking for about 8 minutes, they saw the white bone on the ground and the bottle of water. The two of them sat on the ground with their butts, this is the end, if this is not a ghost hitting the wall, it should also be a circular cave, in this circular cave, forever spinning in circles, then how to get out?

Due to fatigue and nervousness, the two of them were extremely tired, sitting on the ground panting for breath. This is a strange and weird circular cave, I don't know if this is designed by Xingtuo, the grandfather of the cow, what is he designing such a circular cave for?

There are dead people in this cave, they may be trapped and dead in it, and since this cave can be built, and people may fall in, it must be possible to get out, but the exit may be hidden by some kind of obscuring method. How to find the exit, you need to calm down and think carefully, the more anxious you are, the more chaotic it may be, and the more difficult it will be to get out.

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