Listening to the constant barking outside, Sun Tao said a little anxiously: "No matter who built this, let's get out of here first." ”

Zhou Kesheng hummed and said, "Yes, let's get out of here first." ”

Sun Tao said: "Then which direction to choose?" ”

Everyone entered through the gap that was blown up, and there were dark passages with no end in sight on both sides, and no one knew where the passages on both sides would lead to, and which side to choose to leave, which became a difficult problem in front of everyone.

Zhou Kesheng took out the compass, looked at the direction above, groaned slightly, pointed to one of the directions, and said, "This passage is in the direction of the east, let's choose this one." ”

Xiao Ling understood Zhou Kesheng's intention to choose the direction, their trip into the sea was in the direction from west to east, and now this passage is facing east on one side and west on the other, choosing the passage facing east is equivalent to continuing forward, and facing west is equivalent to the direction of return.

Zhou Kesheng put away the compass, everyone didn't say anything, Sun Tao took the searchlight, and took three or four team members to immediately follow the direction indicated by Zhou Kesheng and walked forward.

Qin Yang took a few team members, waited for everyone to leave, and then glanced at the group of barkers who were slowly gathering outside the gap, and then led the team members to catch up with the team.

At first, the crowd was worried that the group of barking would catch up through the gap, but they didn't want to wait about a kilometer or two along the huge passage to the east, and they would no longer hear the barking sound, and they seemed to have given up the pursuit.

After making sure that Bark didn't catch up, everyone relented, and Zhou Kesheng asked Sun Tao, who was taking the lead, to slow down, from the original fast walk to slow down.

The lighthouse ghost jellyfish parasitism caused everyone to have a serious loss of energy energy, and they had just rested for a while, and they were attacked by barking, and then fled all the way here, everyone was exhausted, there was no end to this passage, and no one knew how long it was, Zhou Kesheng saw that everyone was tired, and many people could no longer support it, so they could only stop and rest for a while.

Everyone sat down on the spot to rest, and Sun Tao, Qin Yang and others on both sides were on guard with guns, in case another fierce beast suddenly appeared.

"Xiao Ling, thanks to you just now." Sun Tao looked at Xiao Ling, with a hint of shame on his face.

He was on duty with Xiao Ling before, but he didn't want to fall asleep by himself, if it weren't for Xiao Ling's skill, he was suddenly attacked by Bark, and he could still kill Bark, and change to another, the situation would be different, now that I think about it, I was derelict in my duty.

Xiao Ling smiled: "Brother Sun, what are you doing politely, I am also a member of the team, this is what I should do." ”

Wang Lei said: "This sea area is very strange, just like there is no difference between day and night, and it does not exist on the modern map. I'm wondering who built this tunnel? The ancients were only afraid that they did not have such ability, but to say that modern people ...... It also seems unlikely. ”

This is also a problem that puzzles everyone, and everyone can't say why.

Li Zhibao nodded and said, "The material used to build this passage is also very strange, it is neither rock, nor the building materials that we are familiar with in modern times. ”

Among the crowd, Hu Shengzhe took out the few pieces of debris he picked up before while resting, which was the wall material scattered when Sun Tao used explosives to blow up the wall, he picked up a few pieces, and at this moment, he was slowly looking at it by the light of the flashlight, and gradually, his face showed a very strange look.

"Old Li, Lao Wang, these are a few pieces of this wall that I picked up just now, look at what kind of material this is." Hu Shengzhe took a deep breath, seemed to think of something, and handed a few pieces of fragments in his hand to Li Zhibao and Wang Lei.

Wang Lei smiled and said, "Why, did you find any rare rocks?" You are a geologist, look at what material this is you are an expert, none of us can compare to you, you want to test us. ”

Hu Shengzhe shook his head, his face was very ugly, and said, "This is not a rock, nor is it a building material, this is ...... Bone. ”

"Bones? What do you mean? Wang Lei took a piece of fragment and looked at it, but he didn't see what material it was, and looked up in some astonishment.

Hu Shengzhe took a deep breath and said, "I mean, these ...... It's bone fragments. ”

As he spoke, he stretched out his hands, gestured, and said, "It's huge...... Huge fragments of bones. ”

This sentence made everyone a little stunned, Sun Tao, Qin Yang and the others all showed confused looks, thinking to themselves Could this tunnel be made by crushing the building with countless bones? How many bones do you need for this, this Professor Hu is afraid that he will not be dizzy and will say such bizarre words.

Xiao Ling, Yu Tingting and the others understood the meaning of Hu Shengzhe's words, and their faces showed surprise.

Xiao Ling couldn't help but say, "Professor Hu, you mean this is a huge bone?" These fragments are bone fragments, so we ...... Is it inside a bone now? ”

As soon as these words came out, everyone, including Sun Tao and Qin Yang, finally understood, and then they all opened their mouths wide, revealing a look of shock and inexplicability.

Hu Shengzhe's face was ugly, and he nodded slowly: "I have studied it all my life, and I can't be wrong, these gray-white fragments are indeed fragments after bones are broken, and the density of this kind of bone is very large, beyond imagination......"

He stood up as he spoke, stretched out his hand, knocked on the wall of the passage on the side, and said: "Sun Tao just exploded the wall, but the fragments are bone fragments, there is only one explanation, the so-called gray-white giant wall we saw before is actually a bone that is beyond imagination, we exploded a gap in this bone, and drilled into this bone, this so-called tunnel is neither the masterpiece of the ancients, nor is it a modern building, but a ...... Bone. ”

Everyone was silent, but instinctively took a deep breath.

After a while, Wang Lei muttered, "If this is really a bone...... Whose bones are that? What kind of creature can have such a huge bone, the road we walked here just now is one or two kilometers long, and the length of this bone must be calculated in at least kilometers, so the length of this creature is ......."

Thinking about it like this, everyone shuddered, Hu Shengzhe is an expert in this area, he recognized this fragment as a bone fragment, it would definitely not be wrong, but if the passage where everyone is now is actually the internal space of a giant bone, it is also unacceptable to everyone.

It would be such a huge creature to have such a large bone.

The hundred-meter-long giant tortoise that everyone saw before had already felt huge beyond imagination, and marveled that there was really such a giant beast in the world, much bigger than the blue whale, which is known as the largest creature in the ocean, but if compared with this giant bone, the giant tortoise is just an ant, and it is not worth mentioning at all.