PS: PS: Friends who went back to their parents' homes and followed them back to their parents' homes don't have time to read this chapter today. I envy you.

I can feel it without him saying it, it's too obvious. The rumbling sound was like 10,000 heavy construction trucks passing by, and there was a noticeable vibration on the mountain wall. I lay on the mountain wall and didn't dare to move, it felt like an earthquake

Finish.

Jack didn't make fun of me, and his face was ugly, and he mouthed me, "You should be able to see it clearly here, we can't go to the middle, you can turn on the flashlight and take a look." ”

The stalactites on the mountain wall were of strange shapes, and I found a place where I could stand firm and turn around flexibly, and I half-sat on a stone and pulled out a one-eyed flashlight. The stone under the ass is slight

I sat on it and shook as if I was holding a basket. If you are unsteady under your feet, you are likely to fall into an underground river in shaking.

The moment the flashlight lit up, I was greeted by a huge water outlet. The water pours down from here to form a river, which is the underground river that we come up against. There are outlets and river surfaces

With a drop of about three meters, the water flow is so turbulent that it pours down, and the water gushing out of the outlet several meters wide flies forward seven or eight meters, forming a thick water curtain. Fall into the river below and stir

Large patches of white foam and splashes.

Jack they must have entered the river from here, I looked at the upper water, and felt that there were a few places to climb up to the cave wall, and from there it was also possible to use the irregular stalactites of the cave wall

Downstream. As for Jack, they didn't choose to go ashore, but went down the river. I didn't ask. Because I saw something even more spectacular, I forgot everything.

The water in the upper reaches of the river was so large that the one-eyed beast's light could not reach the other side, and what caught my eye at once was a column of water in the center. A column of water tens of meters high is like the amount of water that falls from the sky and forms a water column

It is so large that it still condenses when the water column is poured into this underground lake.

The water column is at least five meters in diameter, and when it is poured into the lake, it knocks out a puddle in the center of the lake, and a large number of white sprays and blisters make the center of the lake white. Beyond this whiteness, there is a layer of debris floating on the water

of wood chips that can no longer be crushed.

Such a high distance and such a huge column of water hitting the surface of the lake should produce a huge sound. But I couldn't hear it. All I could hear was the rumbling sound of construction trucks. This sound is huge

muffled out all other sounds.

The flashlight could reach the top, and above the underground lake was a dome, but it was based on what I could see. The one-eyed light, at its limit, is to inject a column of water down the dome

place. I couldn't see it farther away.

The flashlight slowly moves from the dome to the water column. This column of water is supposed to be our gateway to get here. That is, the black hole in the center of the sinkhole vortex that we see. I watched it silent for a while.

It is inconceivable that we fell in from here, and not only did we all survive, but there were very few wounded. No matter how you look at it, it's a miracle. But. It also scared me, and a cold sweat broke out on my back.

Finally, I fixed my flashlight and gaze on the dome. There are stalactites hanging down from the dome, but there are far fewer stalactites clinging to the stone walls. And it seems that human body hair grows in certain parts

developed, some parts are sparse, and the dome belongs to the underdeveloped area of body hair on our body. Of course, I'm talking about us Asians. Jack's evolutionary incomplete type is not in this category. It's only been a few days

I didn't see it, the hair on his body looks like a golden monkey, which is definitely an atavistic phenomenon.

I can now be sure that the loud noises and vibrations are coming from above. I felt like we were in a drum, and all the sounds and vibrations couldn't be heard, and no one was in it

and all of them will be tormented to death by this sound and vibration. My heart was already beating abnormally, the blood in my body was boiling with a dense rumble, and I seemed to be on the verge of breaking down and going crazy.

At this time, Jack patted me and said to me with his mouth, "Do you see clearly?" ”

I said with difficulty, "It's like a drum." ”

Jack nodded. "You're saying it very vividly."

Then he tilted his head and motioned to return. I turned off my flashlight and walked back after Jack.

After getting a general idea of the environment, I was depressed, and I was at least sure that we couldn't go back to the surface the way we came. Even without water, it is impossible for us to go up and down from the penetration

The passage of the black hole, which is the center of the sinkhole vortex, goes out. We don't have the ability to get into that channel.

As for Jack's statement that there will be no living creatures here, I'm a little lucky. I can only be sure that there will be no living creatures in that underground lake just now, and the blood-boiling resonance sound does make everyone

Organisms struggle to survive. But what about going out to that underground lake? The underground river water is fast and deep, and it completely allows the survival of organisms, especially fish, and the fish that enter here are fully qualified to reproduce.

When we observed the underground lake just now, from the position, we had already gone out of the underground river channel and entered the embankment of the underground lake. And the sound and vibration were also evident at that moment. In the same way, I

After we entered the river area, the sound suddenly changed from the rumbling sound of the engineering vehicle to the rumbling sound of the water flow, and the rumbling and vibration of the engineering vehicle were significantly weakened.

There seemed to be a watershed moment in the sound. The further I walked back, the weaker the sound that made my blood boil, as if we had escaped from the drum.

"Take a break." When I could hear the voice and didn't need to lip-to-mouth, I stopped Jack in exhaustion.

Jack nodded, did not object to my proposal, and immediately sat down on a flat, stalactite pillar jutting out of the mountain wall. It looked like he was choking on exhaustion, too.

Me too, tired.

In the area of the underground lake, we did not observe for a long time, but during that time it was a great drain on physical strength, and the heart was very uncomfortable. I still feel dizzy and want to vomit. If it weren't for the cause

Due to the extreme lack of food, I really wanted to try to vomit and it would feel more comfortable.

I told you that the stalactites here have a lot of strange shapes. For example, the one under Jack's buttocks, like a water cup with a lid, Jack sits on the handle of the cup, and a little above his head, which is a more

The large platform, rounded, resembles the lid of a mublet.

I struggled to climb to the platform, my feet hanging underneath, gasping for air. It's not because I'm tired, I'm going to let the fresh air suppress the vomiting feeling that rushes up.

Perhaps hearing my irregular breathing, Jack raised the glow stick and let the light shine on my face.

He looked up at me and said, "Your face is ugly, sit down there a little bit, don't spit on my face." ”

"I'm not that extravagant."

I mean, I can't bear that little bit of food in my stomach. But saying it made me feel even more disgusting. I heard Jack retch, then spit out. It seems that he feels the same way.

"You can see the situation there." Jack's words were more like a distraction.

"Hmm." I was still gasping for air. "There really can't be life there. But there should be in the underground river, and you all have a chance to enter the river, and the fish in the water have a chance to do it. ”

"It looks like you didn't see it completely." Jack's tone turned cold. (To be continued......)