The skull enshrined on this altar is amazingly big, even if it is a deformed big-headed human, the head cannot grow so huge, Yang Xue speculates that this skull has signs of petrification, at least 10,000 years old, could it be the fossil of the legendary prehistoric giant?

I didn't bother to pay attention to this question, so I climbed up to the altar and checked it repeatedly, and found that there was a square door behind the altar, and it was dark and faint and I didn't know where it led, and there was a cold air flow rushing in front of me, and I was happy in my heart, and said to them, this passage has air flow, let's hurry in, there must be a crack with the outside world. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

The black smoke had already climbed up the stairs and tumbled in the corridor in the middle of the grotto, rushing towards the altar, and we did not dare to linger any longer, and immediately entered the passage behind the altar. The passage was narrow and very humid all around, with water constantly flowing out of the cracks in the stones. After walking for a short time, we found that a dim light suddenly turned on in front of us, and the distance was too far for us to see clearly.

We had no way back, and we didn't care what the lights in front of us were, and when we got closer, we saw that Captain Li was holding a caveman hostage, slowly moving along this passage and going deeper. I saw that he put the tip of his knife against the neck of this caveman, forcing the other party, I saw that this caveman was very familiar, and when Captain Li noticed the movement behind him, he turned around, and then I saw that the caveman he had kidnapped was the girl who rescued me from the bat mouth in the basin.

This girl was taken aback when she saw me, as if she couldn't believe that I was still alive, Captain Li was even more surprised, and asked us what was going on, saying that he was inexplicably pulled in by a pair of hands in the rat's nest, fortunately with a knife in his hand, it didn't take much effort to solve that person, and later, he found himself in an inexplicable room, so he followed out, who knew that a few "wild men" rushed over him, he was quick to catch the weakest "female wild man" as a hostage, The cavemen seemed to be very fond of this girl and did not dare to act rashly, so Captain Li took this opportunity to coerce the girl and walked to the passage behind the altar.

We didn't have time to explain to him, so we told him that there was a deadly gas behind him, and that we had to get out of here quickly, and as we went, we briefly told him what we had passed and what we had passed in a few words.

After hearing this, Captain Li's eyes showed a fierce light, and he said as he walked:

"In that case, those savages are dead, and it's useless for me to keep her, so I'll slaughter her......"

Before Captain Li finished speaking, he stabbed the girl in the neck with the tip of the knife, and the tip of the knife was very sharp, immediately piercing the flesh, and a stream of red blood flowed out of the girl's white neck. The girl seemed to struggle, but her face was twisted in pain, and the more she struggled, the deeper the tip of the knife stabbed. All of this only happened in a second or two, and my first reaction was to take Captain Li's hand and ask her to let go for the time being, saying that we are very unfamiliar with the terrain here, and it may be useful to keep her alive. Only then did Captain Li restrain his murderous intent, continued to put the knife against the girl's neck, and said to me:

"These savages are very cunning, and they must not be merciful when it is time to attack......

I said that there was only one caveman left, and that she was still an underage girl, and that she was not enough of a threat to us, so I would leave her alone, but be careful, the caveman seemed to have a special ability to pass through the human body and pull out the internal organs without leaving a wound.

A group of five of us, quickened our pace and jogged towards the passage, and in a short time we came to an open cave, and further on, a pool of water suddenly appeared in front of us. To be exact, it should be an underground dark river exposed, however, there are not many places exposed on the surface of the river, it looks like a rectangular pool about 20 meters wide, Yang Xue pulled a hair, measured the direction of the water, and said to us:

"This underground river is supposed to be some kind of lake leading to the outside world, but it's ......"

What Yang Xue wanted to say was that this underground dark river, only such a short side was exposed, and a little further, it was drilled into a cave, which was completely flooded, lost its oxygen tank, and could not continue to move forward at all.

The bottom of the platform is submerged in the water, and a thick layer of sediment has been deposited, and it seems that the water level here has not changed for many years.

The only remaining oxygen cylinder was the one on Captain Li's back, the five of us were obviously not enough, and Captain Li would definitely not take this risk and share the oxygen cylinder with us, and sure enough, he suddenly pushed the hostage in his hand to my side, and said to me a little gloatingly:

"This savage will be handed over to you, don't blame me Li Zhi for being ruthless, there is only one oxygen cylinder left, I can only share it with one person, but don't worry, after I go out with Mr. Chen, I will send someone to help you, if you can hold on for a day or two......"

I said goodbye and said that I would hold on for a day or two, and when the black smoke caught up, we would be on the road in minutes, in this case, I will not compete with you for this oxygen cylinder, life and death, after so many things, I have seen it, it's just, please bring me a message after you go out.

I begged Captain Li to go to my store to bring a message to my partner Liu Chang if he could get out alive, and ask him to return my shares, and after realizing it, give the money to my parents, which is their pension money, and I am not filial to them now, and I have no life to serve them. Captain Li nodded in agreement, saying that this mission was also successfully completed, and after going out, he would apply to the company to give a considerable pension to the families of the victims of this operation.

I was about to ask him what task and what company he was, but Captain Li immediately grabbed the conversation and asked Yang Xue what he needed to explain after his death, Yang Xue was also indifferent at the moment, several times of life and death, we had already seen the matter of being able to get out alive very slim, and it was really life and death, and it was not as terrible as imagined. Yang Xue said that she was most sorry for her death, and asked Captain Li to take care of her, and Captain Li also looked serious, saying I know the situation in your family, and the company will bear your father's medical expenses and house loans.

After a few confessions, it took a lot of time, and within a few minutes, the black smoke had spread rapidly, chasing all the way along the passage behind the altar. Seeing this scene, Captain Li no longer greeted us, greeted Boss Chen, shared an oxygen cylinder with him, quickly dived into the water, and lost his trace in the blink of an eye.

For a moment, I really wanted to snatch the only remaining oxygen cylinder from Captain Li's hand, but I finally restrained myself, there was only one oxygen cylinder, and I couldn't save everyone by fighting so much, and I was injured, not necessarily Captain Li's opponent, maybe I would be stabbed before I died, and the gains outweighed the losses.

Just as he was thinking, the deadly black smoke had already drilled out of the passage, and the strange face of the smoke was the first to jump over, opening the mouth of the baby-like black hole, and was about to devour us.

At the last moment, I held Yang Xue's hand tightly, my eyes were moist, and I said to her in my hometown:

"Tigress, don't be afraid, even if you die, I will accompany you......"