"Nan, there's no way back up there. About a hundred meters above us, there's a thousand ton boulder stuck there, sealing off all the openings. Not to mention digging out, even the sound can't get out." Chen Shisan climbed back into the cave and introduced himself. Previously, he had followed the steel wire rope and climbed back and forth, but it had taken him three hours.

"Well, I don't think it's possible for the time being to return from the top. This vertical shaft is 800 meters deep, and we are currently 400 meters below the ground. Even if there is a hole in the middle of the hole, it would be impossible to dig through it within a short period of time. " Xiao Nan nodded.

Chen Shisan was startled by her analysis and asked: "How do you know the depth of the vertical shaft?"

"The next horizontal hole has a vertical shaft structure diagram, I just went to take a look." Xiao Nan explained.

It turned out that the horizontal hole they were in wasn't a natural one, but was an escape space reserved for mining. It was to prevent any problems with the vertical shaft landing equipment, so that the person in the middle would have a temporary place to hide. In the past, there had been water and food in these tunnels. However, the mine had been abandoned for many years, and those things had all rotted away.

Originally, they were safe in the cave, but the problem was that they had been hungry for four or five days. Even though they still had the Great Recovery Pill, they wouldn't be able to last for more than a few days. There was no time to wait for the rescue from above. Right now, their priority was not to escape, but to find something to eat. If you can't go up, you can only go down.

Chen Shisan picked up a rock and threw it down. Only after a long time did he hear a plop sound. The ground below was actually not hard, but there was water. Underneath the shaft was a puddle.

"Haha, it's good as long as there's water. At least we won't die of thirst." Chen Shisan was overjoyed.

However, Xiao Nan shook her head and said, "Don't be happy too early. The water at the bottom of the well might not be drinkable, and it must be very cold.

"Ugh …" "Right, it's best if we don't go into the water." Chen Shisan immediately scratched his head. Actually, he was more afraid of water than dry ducks.

"Let's go down and take a look first." Xiao Nan suggested.

It was not difficult for them to go down with their skill. Not only were there abandoned steel wires hanging down, but there were also buried nails on the walls of the shaft. There were also horizontal holes every few dozen meters for them to rest in.

"Alright, I'll walk in front. Follow me." Chen Shisan nodded in agreement before he crawled out of the hole.

Xiao Nan looked at him with a strange expression. If not for the black mud on her face, her face would have been flushed red and her breathing would not have been smooth. Seeing him bend over, she immediately looked away. She opened her mouth to say something, but she was too embarrassed to say it. Seeing Chen Shisan leave, she pretended not to see it and controlled herself to not think too much.

After two hours, the two of them had descended more than 300 meters. A dozen more meters down would be the bottom of the well. The swaying surface of the water could be seen. But they had to stop in a hole.

"This is the last horizontal hole on the surface of the water. Take a rest first. I'll go down to take a look first, then you can go down." Chen Shisan said.

"Hmm, do you feel it? This place is warmer than the top." Xiao Nan nodded.

"I can feel it. It should have been colder here. Why is it getting warmer?" Chen Shisan was suspicious.

"It might be related to the water below. The water is warm." Xiao Nan guessed.

"You mean there's a hot spring down there?"

"Not necessarily. The water temperature isn't that high yet. Let's take a look first, I'll go down with you." Xiao Nan shook her head and said.

In many aspects, he was indeed more knowledgeable than Chen Shisan, especially in the field of practical knowledge. It was not because Chen Shisan had not learned modern science in the mountains, but because he had practiced too little and often lacked the ability to judge based on experience.

After resting for a dozen or so minutes, the two of them were ready to leave the cave. This time, Xiao Nan went down first with Chen Shisan following behind him. At a distance of over ten meters, she would be able to climb down in fifteen minutes.

"The water here is around ten degrees Celsius, so the water quality isn't bad …" Xiao Nan observed as she approached the water surface.

"Then what are we waiting for?" Hurry up and drink it! " Chen Shisan arrived later, but became even more anxious. As soon as he was near the surface of the water, he drank it all in big gulps, immediately giving off a sweet feeling, indescribably comfortable.

"Hey!" "Don't …" Xiao Nan cried out in alarm, worried that the unclean water would be poisoned.

"Dong, dong, dong …" Wow... This water is much warmer than it is outside... Plop … "Aiya …" The more Chen Shisan drank, the happier he became, but he didn't notice a thing, as his feet slipped and he fell into the water.

"You don't know water? "Don't move …" Xiao Nan was shocked, she could no longer bother with testing the water quality, and immediately jumped down, arriving beside Chen Shisan like a fish, grabbing him under his armpits.

"Don't be afraid, the water here is very shallow." Xiao Nan consoled her with concern.

Chen Shisan finally stopped moving and realized that the water had reached his chest and his little heart and liver was hanging in midair. But he still didn't dare let go of Xiao Nan, and tightly hugged onto her shoulders.

"Relax, relax your body. If you move slowly with the flow of the water, you won't fall down …" "Even if you fall on the ground, don't panic. Immediately hold your breath and wait for your head to come out of the water before taking another breath …" Xiao Nan was much gentler than Hu Feifei. Seeing that Chen Shisan did not know how to swim, he explained in detail while consoling Chen Shisan, helping him to familiarize with the water.

Under Xiao Nan's comforting, Chen Shisan had indeed calmed down very quickly. He had gradually gained an understanding of the water surface, and he had even dared to follow Xiao Nan's slow movements.

"Haha, the sticky feeling on my body is really uncomfortable. Let me wash first." As he traveled more and more freely in the water, Chen Shisan developed a new goal. He rubbed off a thick layer of grease from his body after washing the hair and marrow.

"You … "It has turned white …" Xiao Nan was curious, and also rubbed a few on his arm, finding out how white and tender his arm was after rubbing away a layer of oil. The stench that was soaking in the water had also lessened a lot.

It turned out that her body was just a layer of dirty black grease that could be washed off. Xiao Nan was so happy that she could no longer care about Chen Shisan and started to use all of her strength to scrub herself.

Compared to Chen Shisan, she had never cultivated before. It was naturally harder to wash than Chen Shisan. After rubbing for a long time, he only used one hand to wash the white color.

Wow, look what I caught." "Chen Shisan suddenly cried out, raising both his hands up from the water. It was obvious that he had an additional item.

"Fish, fish with eyes!" Xiao Nan also exclaimed in shock, it was actually a very common carp. Although it was only at the Second or Second Layer, the message it sent made her extremely happy.

"Hehe, although the live fish is a bit difficult to eat, but you'll get used to it after a few bites. You eat first." Chen Shisan laughed, but did not think too much about it.

"Don't even think about eating for now. If there are live fishes coming in, it means that we can leave as well. There is a passage to the outside." Xiao Nan said as she stopped the man's hand from reaching his mouth.

"..." "Why didn't I think of that? That's great, since we can leave very soon, who can still eat raw?" Chen Shisan was overjoyed after being stunned.

"Hey!" "Don't throw it, it's just a guess. We still don't know how long this passage is and how long it will take us to get out. We still have to eat live fish first." Xiao Nan took the fish from his hands and said.

"The passageway won't be long. Otherwise, the temperature of the water wouldn't be so high. It wouldn't be too far off from the temperature of the water outside. Let's wash up first, then we'll go find the exit. " However, Chen Shisan was as excited as ever.