Chapter 66 fourth quarter

There is indeed an underground river below! This time it can be regarded as survival from the dead, and the twists and turns, wandering in the icy cold water, I don't feel the cold at all, but I feel very comfortable. The mud was completely washed, and the refreshing feeling almost made me forget where I was. When I popped my head out again, Danny also fell down, like a crazy orangutan more than ten meters away from me, screaming happily. When I first opened my eyes, the surface of the water was too dark to see clearly. After getting used to it for a while, I could vaguely see the outline of the surrounding environment.

This should be a cave. The water surface is more than ten meters up to the convex and slippery dome, which is covered from both sides like an elliptical ball. The width of the entire water surface cannot be determined, at least within the range of sight, I think Where is the river bank. The water was slowly flowing in my direction. Danny and I entered the water only a dozen seconds apart, but the distance between us made it impossible for me to see him.But I don’t feel like drifting with the waves at all. On the one hand, the dark environment around me gave me an illusion; on the other hand, it’s probably because the “endless” underground river is flowing slowly without eddies. There is also no swirling undercurrent. Based on this, it can be inferred that the width of this underground river does not have much ups and downs in the middle of the upstream and downstream.

I called Danny twice, then flowed backwards, and I met Danny head-on in a few seconds. Then we swam sideways, flopped for a few minutes, and finally climbed to the shore full of strange rocks. Danny scooped up the water leisurely, splashed it on his hair without stopping for a moment, every time he flushed, he always screamed with joy, shook his head vigorously, and splashed on me little by little. "It's really you, Yi, you are such a lucky partner, you can always bring us back to life!" After rushing five or six times, Danny finally changed a way to express his excitement: he started to use five fingers Combing my short, curly hair back and forth, praising me like a boss.

I looked at Danny's ridiculous actions and smiled: "Didn't you say this is unreliable?" "Hey——" Danny sighed, "Who says it's unreliable? I'm just worried about your life. Is it wrong to care about you?" "Then thank you!" "You're welcome... But, different, with all due respect, I think we've reached a point of no return. Now that we're in the underground river, how can we go back?" I also shook my head: "I don't know, I can only take one step at a time." "Well! I agree with you, there is no limit to the road! But can you tell where we are now? I think this is very important for us to decide what to do next."

I scanned the surroundings again, and said, "This should be a cave..." Danny hissed and interrupted me: "I'm not blind, so I know it's a cave. I mean where should we go? To that? Or to that?" Up and down pointing. I asked: "Then what do you say?" "How do I know! If I know, I still need to ask you?" "I was thinking, is the place where we fell just now the source of this underground river?" Danny nodded, and said, "You mean that all the rainfall flowed here, so this underground river was formed?" "It should be like this. It is because of the accumulation and erosion of the day after day and year after year for a thousand years that this underground river was formed. Maybe this river already existed a thousand years ago. This is Tuo Tuo. The source of the river!"

Danny asked: "What about this winding cave? Is it true that nature is so amazing that rain can wash out a curved cave?" "According to my guess, the mountain we are on now should be a half-leaked mountain..." "Half Leaky Mountain? What is Half Leaky Mountain?" I explained: "I made up the name, because the stone texture of this mountain is not very dense, so whenever it rains, the rainwater that falls on the mountain will leak in through the gaps in the stone, forming this mountainside lake!" Danny reached out and touched the stones beside him, and said, "That's right, it seems to be limestone."

I nodded and continued: "Moreover, there was a large oasis here a thousand years ago. If the oasis is to be formed in the desert and preserved for a long time, it is conceivable that the rainfall in this area must have been very abundant at that time. It has formed the necessary conditions for the long-term stability of the Tuotuoye River." "I understand what you mean. Your words can only prove that the old chief's words are not lying. This place was indeed an oasis, and the Tuotuoye River was once full of water. So what does this have to do with that cave?" I shook my head and said: "Well, to make a long story short, this cave is not formed naturally, but man-made. I think a thousand years ago, someone lived on the top of the mountain, and it was obviously difficult to go down the mountain to get water, so someone A cave was dug to lead to the lake on the side of the mountain."

"Then why is it not straight, but crooked?" Danny asked his own question. "Didn't you notice the difference between the waterway going straight down and the waterway slanting into the lake? The first rock is uneven, the second is slippery, and the tunnel is much wider. I guess the first and The second is man-made, but the third is formed by the convergence of water flow all year round, and the reason why they go down first and then up, the three waterways form an oblique zigzag, is also for water storage. I think at the first corner There must be a large space in the place where there should have been a pool, and it may have been coated with special materials to prevent the well water from leaking out. Every time the precipitation makes the water level of the lake on the mountainside rise, the pool will be filled with water. , once it descends, there will still be enough clear water left..."

"Okay, okay!" Danny interrupted me again, "I don't want to discuss the technical issues of water conservancy with you. What you say is that the predecessors planted trees, and the descendants took advantage of the shade. One thousand years This unintentional action before, has become a chance for us to survive the threat of the desert a thousand years later, right?" "Isn't this a fun thing to do?" I said with a smile. "Yeah, it's a very intriguing thing!" Danny responded in a strange way. "It's not only intriguing, but also quite philosophical. Besides, the Teta people here are different from those in other places. Their religion is not Islam. The old chief didn't say what it is, but it can be seen from their clothes. , should be close to a relatively primitive religious belief. Don’t you think that this passage may be left on purpose for later generations?”

"The people who came later?" Danny pointed to me, then to himself, "To us?" "Or for Rock?" I said. "Oh!" Danny yelled strangely, "The more I talk about it, the more mysterious it becomes. If I continue talking, I'm afraid those Teda people will come back to life... Okay, let's talk, upstream or downstream." "Downstream, only downstream can you get out of the mountainside and reach the former camp of the Teda people, and see what kind of secret the old chief has hidden from us!" I stood up and said.