Half an hour later, Zhuang Yu stopped his hand movements and shook his head gloomily: "It's useless." "I looked up at the marks on the top that had been smashed by his iron hook, and at first there was indeed a black mud stone falling, but it was only about an inch down, and I could not go any deeper. The inner layer of the black mudstone is grayish-white, and it looks like a fossilized fish bone.

I picked up a half-finished fossil of a fishbone on the ground, knocked it, it was indeed hard, and asked Zhuang Yu to try to see if he could break it with an iron hook. I can't help but say that it is so hard! If you look at it, it's not necessarily a fossil, but it's something that has taken this shape. It's not related to the air in this space, it's related to the black mud stone, I suspect that the black mud stone was originally the silt of the seabed, I don't know how it became such a hard stone.

And the big mystery is, how does this space exist?

Now that we are tens of meters below the surface of the earth, how can there be a space containing air at the bottom of the sea? The principle of the water mirror is also that the air flow and water are kneaded together, and the density reaches a certain level, and the water can also be understood as seawater, so where does this air flow come from? Not only that, but we are in a space where we don't feel the air moving, but there is a strong suction force on the water mirror, which proves that the gas flow is very violent, thus making the water a whirlpool.

I still insist on the original inference that there must be holes on the vertical surface above the water mirror layer, which makes the gas jump. This hole is either very large or dense enough to create a strong air current. But it didn't help to figure out the reason, I searched carefully around several times, but I didn't find any possible holes, so if it was a confined space, then Zhuang Yu and I were breathing here, or it wouldn't be long before the oxygen in the space would be exhausted.

This is a very serious thing! There is not much oxygen left in the oxygen tank, it can last two hours at most, and if we can't find a way out in the short term, we will die of suffocation here. Obviously, Zhuang Yu also thought of this truth, so even if his leg was broken, he didn't rest, and there was no way to do it above his head, so he used an iron hook to knock on the black mud stone walls on both sides, and then he knocked on the ground, but it was the same situation, no matter which side, the black mudstone was only about an inch of the surface layer, and the outer layer was full of hard material like bone fossils.

Suddenly, a terrifying thought flashed in his mind, and he shouted in a trembling voice: "Zhuang Yu, wait and knock again." Zhuang Yu stopped, looked over suspiciously, I looked around again, and said what I thought just now: "Do you think we will fall into...... In the mouth of an animal, this animal may have been dead for thousands of years, or even tens of thousands of years? So, the black mudstone is actually the mud that has been poured into the animal's mouth, and the outer layer is the one that has been transformed into an organic fossil after countless years.

What animal can be so big? The only underwater creatures I can think of are whales.

Zhuang Yu was silent for a while and then questioned: "Then how do you explain that there will be air in here?" And we've been in for so long, and we haven't felt the air thinner, so you can see that the air is still flowing back, where does this air come from? ”

A flash of lightning flashed in his mind, his eyes suddenly lit up, and he took two steps forward with a little excitement, "Didn't you suspect that there was more than one such space before?" It is said that Sheng Shiyao is likely to fall into another space, so is there a possibility that groups of these super-giant animals died together, and then overlapped and sank into the silt at the bottom of the sea, after the transformation of the annual rings, the years change, their bones turned into fossils, but because the number of years is not enough, they have not completely become fossils, and there is too much organic matter in the silt on the seabed, so that there are pores on the fossil level that cannot be seen by the naked eye, so it forms a loop aura similar to a beehive. ”

I said so much in one breath that I didn't even grunt in between, and only then did I pause, swallow a mouthful of saliva, and breathe slowly. Don't blame me for being excited, but only by reasoning like this can we prove that Sheng Shiyao is fine, and his situation should be the same as ours.

Zhuang Yu looked at me steadily, silent for a long time, I was inexplicable, just don't turn my eyes, I heard him suddenly speak: "You are life and death for him, and you have always thought of him." ”

There is no need to ask, naturally understand that he is referring to my feelings for Sheng Shiyao, life and death are the same? I don't know. Emotional things are actually difficult to describe in words, because many behaviors are instinctive reactions in a moment, just like when I fell down, Sheng Shiyao desperately fell down to save me. It has nothing to do with time, it is the grinding of each other's hearts, and everything we experience together, that creates this instinct.

After a while, Zhuang Yu said again: "If I find you first, perhaps, you and him will not meet, and it is likely that the road behind will be completely different." His expression was slightly stunned, staring at me with a deep meaning that I couldn't understand, I groaned and shook my head, "It won't be different, what you want to do won't work without Sheng Shiyao, so you will still use me to find him." ”

Zhuang Yu smiled and said in a quiet voice: "Cheng Xiao, you misunderstood, I am not talking about modern times, but two thousand years ago. You may not know, but you and I had a memory when you were young. I was only seventeen or eighteen years old at that time, and the witch was not under my control, and you were taken into the imperial city by her to play, and unfortunately fell into the water, and I happened to be rescued, and then you often came to stick to me, and followed me. At first, I felt annoyed, but gradually I got used to it, but this habit suddenly ended after more than a month, you no longer appeared, and I even asked you which noble prince's child you are, but to no avail, in the end I had to give up. It wasn't until I became the king of Dian and after you became famous in a war, that I gave you the name of the Heavenly Maiden Ying Ning, that I found out that you were actually the little girl named Ah Xiao when she was a child. And then ......" he said no more, and his eyes seemed to flash with sadness.

The heart fluctuated, I didn't expect Ying Ning to have such a relationship with him, but Ying Ning was a child at that time, and he was a friend of the grace of being saved. Sheng Shiyao once mentioned some future events to me, saying that after Ying Ning was named the Heavenly Maiden, the King of Dian, that is, Zhuang Yu's previous life, had hired her and wanted to marry her as a princess. I don't know if Ying Ning was already interested in the wizard at that time, and finally the marriage decree issued by the King of Dian ended with her death in response to the robbery, a fire.

Although I have Ying Ning's soul and some of her memories, in the face of Zhuang Yu's sigh at this moment, I don't know how to respond, so I have to change the topic lamely: "Let's analyze whether this bone fossil has pores." ”

Zhuang Yu pondered his eyes for a few seconds, and finally turned his gaze, I secretly breathed a sigh of relief, so Zhuang Yu, who has memories of the past, is really uncomfortable. is used to his gloom and indifference, even if there is occasional warmth, it is also for Jian Ningyi. But just as I leaned over to pick up the fossilized fish bones, a whisper suddenly overflowed from his mouth: "You really forgot those past ......" After a pause, he said softly: "It's better to forget." ”

I buried my head and pretended not to hear, so I took the fishbone in my hand and looked at it carefully, and I didn't find anything unusual, it was something as flat as a stone, how could I detect whether there was really a pora?

"Bring me the fish bones, and bring me two oxygen tanks." Zhuang Yu commanded coldly, and I looked up and saw that he had recovered his previous condensation, as if the emotion just now had not happened. Nodding, he handed him the fishbone in his hand, and then went to move the two oxygen tanks, only to see him put the fishbone between the two respirators, open one of the oxygen tank valves, wait for a while, and then open the other, a few minutes later, he closed the two muffled, and made a judgment: "There are indeed air holes." ”

I saw a layer of mist around the bone, and the mist did not disperse, but seemed to be introduced into the bone. That is to say, this semi-finished skeleton fossil does have countless pores that are invisible to the naked eye, and there are air currents in these pores, and the black mudstone sealed on the surface must also have pores, and the whole space seems to be sealed, but in fact it is completely circulating. But that doesn't explain where the air comes from, how does the air flow into the depths of the seabed?

Unless...... Unless there is a possibility, that is, thousands of years ago or even tens of thousands of years ago, there was a catastrophe in this sea area, which caused all the life on the bottom of the sea to be destroyed, even this super-large animal was not spared, and then their bones sank to the bottom of the sea, buried in the silt, and the bones were piled up into a mountain, and connected to somewhere under the surface layer of the isolated island two hundred meters away, and then the air from the outside world came in from there, and entered the stomata of the bone fossils that were connected together, forming an ultra-long-distance return.

The only thing that can satisfy these is the cave of the Heavenly Altar that we encountered before, and the air flow of the small whirlpool encountered by Zhuang Yu and the three of them when they went down to the cave can be explained, and these bone fossil semi-finished products are buried around or under those rock formations. However, because it was close to the surface layer, the air flow was not like the depths of the seabed, so the airflow barrier that Sheng Shiyao and I encountered before being washed by the water to the mouth of the whirlpool cave was relatively not so strong, and it could be torn apart by him with secret techniques.

I even think that the magnetic field fissure in the Heavenly Altar Cave is actually caused by these countless bone fossil stomata. Imagine fossilized bones overlapping each other into a deformed sphere, and tens of millions of pores forming loops that converge into multiple strands of air, altering the magnetic field of space from individuals to each other, each of which forms a rift. In this way, we estimated that there were still four rifts missing, or that only four wisps were diverted into the cave, and others were led elsewhere.

In this way, there are many separate spaces in the rock formations of the isolated islands or under the surface layer. At this point, it can basically be concluded that Sheng Shiyao was sucked into the bones of another animal, and that animal should not be small, otherwise if it is a small creature, it is impossible to accommodate a person. I remembered a report I had read about a strange phenomenon since ancient times, where groups of whales ventured into the shallows of the sea, and then slapped the water with their tails while howling in despair, and finally ran aground and died at low tide.

I can't help but think, will this disaster be a collective stranding of whales to commit suicide?