Black.

I couldn't see my fingers, and everything around me fell into darkness.

Lin Feng stood in the cave, and the chill hit his whole body.

This mountain cliff, straight to the point, without a little angle, how could it suddenly go up the mountain and have such a serious landslide?

Generally speaking, whether it is a plateau or a flat land, all kinds of rocks and soils may indeed constitute a landslide.

However, among them, only some rock formations with loose structure, low shear strength and pit weathering ability will appear under some special effects!

When choosing a shelter, Lin Feng Zeng Tsai carefully checked that the geological structure and geomorphological conditions here are relatively simple, there is no kind of rock formation between soft and hard, and the probability of suddenly walking the mountain is very small.

Why is this happening?

In the next second, Lin Feng was not entangled, turned on the drone with his mind, and connected to his live broadcast room.

Right now, it's already 4 o'clock in the morning, but as soon as the broadcast started, more than 1,000 people still slipped in.

"666, late-night welfare, why did Master Feng start broadcasting at this point?"

"Why is it so dark?

"Why is Master Feng expressionless, what happened?"

"Master Feng, what's going on?"

Lin Feng swallowed his saliva, let out a long breath, and said slowly: "Ladies and gentlemen, let me tell you very bad news, a landslide occurred on the cliff above my head, blocking the entrance to the cave, and now, not even a single mosquito can fly in here......

"Damn, what? landslide?"

"Master Feng, I heard you right, right? Are you blocked in the hole?"

"Huh?!How could such a thing happen?"

"Damn, what should I do?"

"Is there a brother from Qinghai and Xinjiang in the live broadcast room? Hurry up and call for rescue, it should be too late!"

Lin Feng controlled the drone and walked towards the depths of the cave, "Don't worry, don't call for rescue!" You see, the cave is very deep, I am walking inside, see if I can find other way out, the structure of the cliff is located in the tuyere, and most of the groundwater exists, there should be more than one cave entrance." ”

"I didn't expect this sudden situation, according to my analysis, the cause of the landslide must be related to the hydrological conditions here!"

In the dark, Lin Feng walked forward cautiously, saying as he walked: "The groundwater activity here should be very frequent, you can see that the surface of these rocks is very moist and the moisture is very heavy. This may produce hydrodynamic pressure and pore water pressure, increase bulk density, buoyancy force on permeable rock formation......s, etc.

"Now, I can only pray that there will be another road ahead, or an underground river. ”

Although the night vision function of the drone is very powerful, it is useless in this bottomless hole, and you can only see your feet clearly, and it is a little difficult to go a little farther.

"Master Feng, hold on!"

"Oh my God, what's the situation, how did it get black?"

"There was a landslide, and the anchor was stuck in a cave. ”

"Master Feng, don't joke with us, okay?!"

"Oops, my heart is about to jump out!"

In a cave.

Lin Feng glanced at the barrage, smiled helplessly, and said, "Brothers, I really didn't joke with you this time, the situation is a little wrong, but I believe in myself, I will definitely be able to find a way!"

After that, he walked forward for another five or six minutes, and in the darkness, there seemed to be a rumbling sound ahead, very soft, and if you didn't listen carefully, you might not be able to hear it.

Lin Feng made a silent gesture, his expression was serious, he pointed to the darkness in front of him, pricked up his ears, and listened carefully.

After a long time, he whispered, "Do you hear me? It's the sound of water!"

Then, he quickened his pace and walked forward, and by the light of the drone, he saw that the front of the cave suddenly opened up.

What catches your eye is a turbulent underground river!

"Ladies and gentlemen, there is indeed an underground river here, and the cliff landslide must have some connection with it, and maybe this dark river will send me back to the surface. ”

Looking at the turbulent river, Lin Feng muttered: "There is no way ahead, it is a huge rock wall, I have to go down to the river and take a gamble!"

"Master Feng, be calm!"

"The underground river doesn't necessarily flow to the ground, but this is a plateau, you can try it, look forward to it!"

"666, why does Feng Ye always survive in desperate situations?"

"The underground dark river, similar to what is written in the ghost blowing lamp, I finally saw it with my own eyes today, chicken jelly QAQ!"

"Steady, we can win, come on, Master Feng!"

In the next second, Lin Feng jumped off the dark river with the drone.

At first, the river was not very deep, just below the knees, and although it was a rapid, it was able to hold your foot.

In this way, after staggering for a while, the river was getting deeper and deeper, and in desperation, Lin Feng had to swim.

"Wow, this river is really cold!" gasping for breath, he shouted loudly: "This and the river outside are likely to have the same origin, and they are both snow water flowing down from the Qilian Snow Mountain!"

Enduring the biting cold, he continued to swim forward, and his feet could no longer touch the ground.

After another almost five minutes, the water flow became turbulent again, and in the water, Lin Feng could no longer control his body at all, so he could only choose to go with the flow.

However, at this moment, a huge waterhole suddenly appeared in front of him, and the river kept spinning in the middle, Lin Feng felt bad, but now he couldn't stop, so he could only follow the rapids and enter the waterhole.

Somehow, just for a moment, Lin Feng, who had just stepped into the pool, suddenly felt as if there was a huge suction force underwater, pulling him down!

"Ahh

He screamed, immediately held his breath, and disappeared above the water.

The audience in the live broadcast room realized that something was wrong and kept posting barrages.

", where is Master Feng!"

"All of a sudden, it's gone?"

"It looks like I've been caught up in it!"

"What's ????"

"Tai Nima is thrilling, in the middle of the night, watching the live broadcast while cultivating immortals, what a red chicken!"

After falling into the water, the drone also plunged headlong into the waterhole!

Under the water, Lin Feng's body was not controlled at all, no matter how he went upstream, it was useless, he couldn't resist that huge force at all, he was rapidly sinking into the abyss!

This dark river has a suction!

Lin Feng realized the seriousness of the problem and didn't want to sit still, so he looked around left and right, his brain was running rapidly.

At this moment, a hole suddenly appeared in the rock wall on his left!

In a hurry, Lin Feng didn't have time to think about it, he directly turned on his skill [Revenant Hunter], kicked hard in the water with both legs, and then stretched out his hand and grabbed the edge of the cave!