After a night of sleep, and after experiencing the Soul Ship and the Demon Grass, everyone was really tired, so they fell asleep after falling to the ground for a while.

When we woke up again, it was already four o'clock in the afternoon. Of course, in such a dark underground cave, there is no distinction between day and night, and time is only used as a reference. The people who woke up took out the water and compressed biscuits in their backpacks and ate them one after another. It was the first meal of the day. Some people are more savvy and know that the current environment is harsh and they don't know when they will find food and water, so they only eat a little bit and save as much water as possible. But there are also those who don't care, they first satisfy themselves in the present, and then they "enjoy" the biscuits and water in their hands to their heart's content, and don't think about the future at all - be happy when they are happy.

After a while, Jin Yuxiang saw that everyone was eating and drinking, so he asked everyone to explore this huge cave together.

"This cave is so big, I guess it's quite deep inside...... What if you can't find a way out? "The jar is a little worried.

Xu Yunshu said: "We not only have to find a way out of here, but also find water and food. If we really can't get out of here, how can we survive is the biggest problem we have to face......"

In fact, what Xu Yunshu said was the truth. If we can't find a way out of here, water and food are really fundamental to our survival. Without these two things, the supplies we carry with us now might only last about two days.

Going deeper into the cave, about a kilometer away, we gradually heard the sound of water.

"Underground river?" The first reaction of the altar was very similar to the situation we encountered in Yongxian Mountain.

"That's right! Listen to this sound should be an underground river! Xu Yunshu said. When we heard the sound of water, it meant that there must be a water source nearby, so we were a little less worried. Even if you can't find a way out for a while, you won't die because of lack of water.

We followed the sound of the water and soon found the underground river.

The river is more than ten meters wide, and the water surface is relatively smooth, as if the current speed is not very fast. It came from the depths of the burrow, passed in front of us, and flowed out through a side hole next to it. At this time, the cave is divided into two forks in front of us, one is the direction in which the river flows, and the other is the direction in which the river flows. However, there is only one way for us to go, and that is the direction in which the river flows. Because the cave in the other direction is only as wide as the river, it cannot be entered by people at all.

However, if we want to continue to walk forward and enter the cave in front of us, we need to go to the other side of the river, because the river is turned out, and the road in front of us is completely blocked, and there is only a road on the other side of the river. Luckily, there is a natural stone bridge over the river, and we can use this stone bridge to get to the other side of the river.

We walked slowly to the river, and when we looked into the river, it was so dark that we couldn't see how deep it was. The jar was a good thing, picked up a stone and threw it into the river, causing a splash more than one person high.

"I'll go, this river is really not shallow!" Jar said.

"No matter how deep the water is, we don't have to wade through!" Meng Jin said as he squatted down and picked up the water in his hand, wanting to take a sip.

"Stop! What are you doing? Xu Yunshu exclaimed.

Meng Jin was taken aback by Xu Yunshu's voice: "What? Can't you drink saliva? ”

Xu Yunshu walked in front of him, squatted down, scooped up some water from the river with his hands, and then poured the water back into the river with a "bang", as if he had been stung by a bee suddenly.

"What's wrong?" I stepped forward and asked her with concern.

Xu Yunshu said with a cold face: "This water can't be drunk!" ”

"Why can't you drink it?" Jar also asked.

Xu Yunshu said: "Did you know that Lop Nur was a saltwater lake before it dried up? ”

"Salty...... Saltwater lakes? ”

"That's right! Don't you think about these things when you see those salt crusts outside? "Lop Nur is drying up because of too much evaporation and less water from upstream rivers into Lop Nur...... Although Lop Nur has dried up, there is a large amount of water stored in the underground of Lop Nur, but this water is not ordinary fresh water, but brine containing a lot of mineral elements, which is poisonous! ”

As soon as he heard that it was poisonous, Meng Jin immediately threw down the water in his hand. When he was holding the water before, he didn't feel anything because the river was cold, but when he put down the water, he realized that his right hand that had touched the water had a hot feeling. He looked down and saw that the skin on his right hand had begun to corrode. He hurriedly took out the drinking water in his bag and rinsed it, although it didn't have much effect, but the spicy pain couldn't go away for a long time.

"Thankfully, you reminded me! Otherwise, I'll drink it," Meng Jin said with palpitations.

The jar also asked, "What will this brine look like when you drink it?" By the way, isn't it like tofu, where the blood all over the body clots? ”

This time Xu Yunshu didn't speak, and Hu Yunting, a professional, opened his mouth to answer for her: "I don't know if it will become 'blood tofu', but brine will cause great damage to your digestive tract, and at the same time, it will also inhibit the central nervous system of people, even if you can't die, the consequences are very serious." ”

After listening to Hu Yunting's words, everyone's faces showed disappointment. Since there is no way to drink the water here, it means that there is still no drinking water. Meng Jin was quite happy, and he was glad to be alone over there. If Xu Yunshu had stopped one step too late, he might have already drunk it.

"Okay, since it's okay, let's hurry up and get on the road!" Jin Yuxiang was urging over there. When I encountered the magic grass on the conjuring ship before, I had never seen him in such a hurry.

A few of us followed Jin Yuxiang to the stone bridge first. To say it's a bridge isn't quite true. It was nothing more than a stone jutting out from the shore at this end to the opposite side, and its shape was not at all irregular. We said we were going up, but we actually climbed up, and then one by one we had to sit on the rocks and move forward little by little.

When the altar climbed to the middle, he deliberately stood up and stomped his feet vigorously: "This stone is not strong, and it bears so many people on it at the same time." ”

Meng Jin followed behind the altar and reminded him: "You sit down quickly, be careful of falling down for a while?" ”

"Falling? I? Pointing to himself, he said, "I have been a monkey since I was a child, jumping up and down, climbing trees in the house, and never missing a hand, oh no, I have never lost my foot!" ”

"Jar, you'd better be careful!" I also reminded at the front.

The altar listened to me and sat down slowly.

"Stumbling? Why does that sound so awkward? Meng Jin followed behind the altar and said.