This side hole is not large and can only accommodate two people swimming side by side. The three of us swam all the way in along the side hole, not down, but diagonally upward. It was a no-brainer for us, as if there was a current pushing us forward. We swam for about a few tens of meters, and suddenly the cave became straight up and down, and we had to continue to walk upward.

There were a few "bangs", and the three of us floated above the water.

The jar took off the respirator regardless of it, and I didn't have time to stop it. This guy, he doesn't want to think about what to do if there is no oxygen here? Fortunately, the situation I assumed did not happen, and the jar where the respirator was removed was gasping heavily. So, Xu Yunshu and I also took off the respirator in our mouths. Of course, the jar is also indispensable for me to complain.

"This is just an entrance, let's swim along the river!" Xu Yunshu suggested.

The place where we outcrop is just a small pool, and connected to it is a long waterway. Above us was a tall cavern that stretched inward along the waterway. The waterway is lined with steep mountain walls on both sides, and there is no place for people to stay, so the only way to move forward is to swim.

We had just been tossed twice in the water when the jar asked us, "Why is this water salty and astringent?" Poor ghost, it can't be that you pee here, right? ”

I was speechless for a while: "Can you pee for me?" See if you can make this pool of water salty? ”

"Then it can't be seawater, right? I tasted it when I first entered the water, and the pool of water was obviously fresh water! "The jar and I.

Xu Yunshu interjected: "Okay, okay, you two don't fight!" This Dragon's Breath Pond is supposed to be connected to the ocean, so there will be seawater coming in. ”

"But the pool above is obviously fresh water!" The jar said unconvinced.

"That's because the specific gravity of fresh water is small, so the pool water above is light, and the salt water has a large proportion, so it will sink below." Xu Yunshu explained, "And the pool water above is replenished by surface water, while the seawater is connected from below, so the upper layer is fresh water and the lower layer is seawater." ”

Tanzi looked surprised: "There is still this kind of operation?" ”

Xu Yunshu said with a smile: "Of course there is, the magic of nature is unimaginable to us humans!" ”

We talked and laughed and walked along the river for a while. At this time, open spaces began to appear on both sides of the river, and instead of vertical mountain walls, they were still a little incoherent, so we had to stay in the water.

The jar is our pioneer and has always been in front. He suddenly let out a loud cry, his voice echoing through the cavern - "Look, there seems to be someone ahead! ”

We took the lamp and looked ahead, and sure enough, we saw a humanoid figure lying on the ground in the distance......

The water beneath him was not as deep as it used to be, only about 3 meters or less. When we swam to the side of the humanoid thing, we realized that it was indeed a human being, but it was not a living person.

It was a corpse, the flesh on the body had long been rotten, only a skeleton remained, and a coarse cloth coat was put on the outside, which looked like the costume of the Republic of China.

"Who is this man?" Tanzi asked me and Xu Yunshu, and when he saw the confusion on Xu Yunshu's and me's faces, he understood that we were also puzzled.

"Looking at what it looks like, it should be a person before the founding of the People's Republic of China...... But how did he get here? And for what? Xu Yunshu seemed to be asking herself, and she was also asking me.

"'For what?' Good explanation. I said, "If he didn't break in by mistake, then he was just like us, running for immortality." It's just that how he got in, it's a little hard to think, can't he also come down in such a complete diving facility? Even if it was, then how could he die here? ”

Xu Yunshu and I were pondering in front of the corpse, and ran to the jar in front of us to explore the way and shouted again, telling us to come over.

When we swam to the altar, we found two more bodies not far ahead. Of the corpses found this time, only one was reduced to white bones, and the other was turned into a swollen rotting corpse.

I carefully observed the clothes of the two corpses, and found that the clothes they were wearing were no different from those of the current people, and they should be modern people. Xu Yunshu obviously also discovered this: "These two corpses and we should be contemporaries. ”

"But why did one turn into bones, and the other ......" Jar glanced at the carrion and immediately looked away. To be honest, the appearance of a person when it is rotting should be the most ugly, it is better to look at the skeleton next to it! "And this one isn't too bad? It can't be the one who just came down recently, right? ”

"No!" I said categorically, "You see the clothes they wear, although they say that they are contemporaries of us, but the material should be 'really good', it was a popular thing in the last century, where are people still wearing it now?" And both of these skeletons are dressed as 'really good', so the two of them should be from the same generation. ”

"Then why doesn't it rot?" Jar asked.

"Because it's become Tai Sui!" I say.

The altar was stunned: "Then let's be careful!" Once this thing comes to life, it's not fun! ”

"Phew, crow's mouth!" I spat twice and scolded the jar.

We continued to swim forward, and found quite a few more corpses along the way. The corpses were dressed in different ways, some modern, some modern, some ancient, and many were not clothed. I think that those corpses without clothes should be far away now, and their clothes may have been oxidized long ago, after all, there is plenty of air here.

As we swam forward, we always felt like we were in a graveyard, surrounded by dead people, and more than ever. The dead in the graveyard were at least buried in the ground, but they were all exposed under their noses and could be seen clearly. It is more appropriate to say that it is not so much a cemetery as a mass grave. The three of us swam among the corpses, always with a hairy heart. After all the incredible things we've been through, it always feels like these corpses will suddenly move at some point, and then stand up and rush at us. Thankfully, that didn't really happen.

The water beneath him is getting shallower and shallower, not even more than 2 meters. The surface of the water reached near my neck, and my feet could already touch the bottom of the water.

"Help~ Help!" I was startled by a terrible cry from the jar. I hurried to him and asked, "Altar, what's wrong?" ”

"It seems that something is holding me~" The voice of the altar trembled a little, there are only three of us here, and Xu Yunshu and I are fine, of course we won't make this kind of joke, so ......