Holden immediately made the right judgment and made a rising gesture towards Sun Wu, causing him to surface immediately. Pen? Interesting? Pavilion wWw. ｂiquge。 But Sun Wu didn't realize that the danger was approaching, and he didn't seem to understand what Holden meant, and when he hesitated, the huge fluctuations had stirred up the mud and sand at the bottom of the lake, and his vision immediately dropped to the point of blindness.

It was impossible for Holden to give up Sun Wu and run for his life alone, he tried to get as close to the other party as possible, wanting to use his advantage in strength to drag Sun Wu's body and forcibly pull him to the surface.

But at this time, the huge creature had swallowed Sun Wu into his mouth, leaving only his upper body exposed, Sun Wu was frightened, kept swinging his arms, and a large number of bubbles came out of his mouth with an oxygen tube, and instinctively shouted loudly underwater, but he couldn't make any sound.

At the last moment, Holden didn't have time to weigh it carefully, hurriedly pulled out the dagger he had prepared from his belt, and stabbed it before he could see the true face of the monster.

The white monster was attacked by Holden, and the pain of the wound could not bear the sharp pain, and it wrestled its huge tail and sprang through the water at the speed of an arrow from the string, and rushed towards an underwater cavern at the edge of the underground lake.

Sun Wu was still bitten by the monster in his mouth, unable to break free, Holden did not dare to let go, firmly grasped the hilt of the knife, and moved rapidly in the water by the movements of the underwater troll, like riding a speeding motorboat.

The monster moved underwater with astonishing speed, and in the blink of an eye, it sprang into the cavern that had been flooded by the lake, and sped through the tunnel-like cavern. Holden hung on the monster's body, his whole body was like a noodle, floating in the water, and he didn't know how far he had been taken, in short, this underwater cave had many branches, and Holden only felt that it was turning and turning, and it didn't take long for him to lose his way. He gradually realized that he had found himself in a very awkward situation, and if he gave up on Sun Wu at this time, there was no guarantee that he would return the way he came and swim to the lake where he had started.

However, if the monster was allowed to roam freely, he would inevitably move further away from the location of the underground lake, and if he delved completely into the unfamiliar underground network, he might not even have a chance to escape.

Thinking of this, Holden finally made up his mind, the current situation faced by the Chinese team member Sun Wu is already very dangerous, and it can be said that the possibility of survival is very slim, under such a premise, Holden should give up Sun Wu in order to protect himself. He tried to stabilize his body, and pulled the dagger inserted in the monster's body horizontally, and in an instant, it tore a long hole on the monster's slippery back, and the blood like a thick cloud spread under the water, and Holden smelled a fishy smell of blood in an instant.

The monster suffered from this sharp pain, and finally let go of its mouth, let go of the prey that had reached it, and fled for its life. However, Holden was surprised to find that after Sun Wu broke free from the monster's restraints, he did not lose his life, but left two rows of tiny holes in the place where the monster was bitten, and a stream of blood spread out.

Holden hurriedly dragged Sun Wu's descending body and swam with him in the direction he thought was right.

Unfortunately, by this time, they had completely lost their way, not knowing exactly where they were or how far they were from the underground lake.

Holden thought that in this situation, he would have to rely on God and his own luck.

They didn't dare to stay too long, and they kept diving in complex underwater caves, but the problem was that the surrounding environment was basically the same, and they couldn't make effective judgments at all. They have been trapped here for an unknown amount of time, and the oxygen has been used up by two-thirds, and if they still have no clue in the next few years, then the safest way is to find a gas chamber to rest and then wait for rescue.

However, Holden knew that waiting for rescue in the gas chamber was basically unlikely. Not to mention whether the rescuers can find the air chambers where they are hiding, even the consumption of oxygen will also drag them into a situation of death.

They continued to dive, and suddenly, after passing through a narrow tunnel, they entered a very wide underground river. Judging from Holden's experience, this underground river must be connected to somewhere in the outside world, otherwise where would such a huge amount of drainage be discharged?

Holden immediately told Sun Wu that they had to follow the direction of this underground river to find a possible exit. But Sun Wu pointed to the oxygen cylinder and asked Holden if the amount of oxygen left was enough for them to support until that time, and Holden, who had always been optimistic, couldn't help but shake his head and told Sun Wu that this possibility was very small, but they had no choice but to take out the last chips and gamble like gamblers.

The huge underground river is like a circular pipe, twisting and turning, and it doesn't know where it leads.

In the process of traveling, in the sedimentary sand, they stumbled upon a huge fossil of human bones, Holden dug open the covered sediment, and was shocked to find that the size of this skeleton was incredibly large, judging by the proportion of the bones, this human-like creature was close to 8 meters tall!

Holden had never seen such a huge human skeleton, and there was no underwater camera in the backpack he carried with him, so it was impossible to take pictures for evidence, and besides, whether they could get out alive became a question, and even if he took a picture of this fossilized skeleton, who would show it.

Sun Wu seemed to have a special curiosity about this giant human skeleton, and he continued to carefully cut away the covered mud and sand, and soon, the entire prototype of the fossil was revealed in front of them, and it was strange that this skeleton that resembled a prehistoric giant somehow did not have a skull.

A series of discoveries have upended Holden's original understanding of the world, and he tries to take a leg bone so that if they escape alive, it can be handed over to human scientists for study.

Holden was about to remove the leg bone, but Sun Wu, who was behind him, grabbed his arm sharply and pointed to the back of the underground river, only to see a huge school of fish, like a black cloud pressing down, swimming towards them at lightning speed.

They immediately smelled the smell of danger, did not dare to stay for half a second longer, immediately swung their flippers and swam desperately in the opposite direction. After diving for hundreds of meters, they finally found a small air cell on the cave wall above their heads, and when they entered the air cell, the oxygen content was already below the warning line.

That is, they are already trapped in this "room".

Holden did not expect that his fate would end like this, and that no matter how devout a Christian he had been, he had to begin to doubt God, and that his God had abandoned him.