"Captain, I... are we going to float down this underground river? What should we do if the ancient tomb that Commander Sun mentioned just now?" Zhang Xingkuo saw that everyone was attracted by the magnificent underground river in front of him, and hurriedly reminded Zhao Kuo.

"On the way here, I thought about it. Most of the fake tombs we had been attacked by yellow-skinned boys were mostly unfinished burials, which did not meet the conditions of double doubt. Moreover, the thief hole I dug just now was so stingy. I think there should be a very difficult character in the tomb chamber below. Based on these two points, the purpose of designing all this is to cover up the passage leading to the underground river so that we outsiders can directly enter the second floor of the tomb. Of course, once we enter there, it will definitely be a life-and-death ending." Seeing Zhang Xingkuo having doubts, Sun Guofu, who had been driving the way forward, turned around and explained in detail.

Zhang Xingkuo was stunned when he heard this. He was about to ask Sun Guofu about what he had happened after he and Fatty Wang entered the cave, but he saw Sun Guofu step forward a few steps, walked to the small boats, and stretched out his hand to touch him.

Zhang Xingkuo followed him closely and saw this and reached out to touch him.

Then he was surprised to find that the boat was not made of wood. But he felt relieved when he thought about it. If it were wood, it would have been corroded in the crypt. But the feeling of reaching out to touch it was cold and hard, like iron and stone.

"It's the best iron wood." Sun Guofu smiled faintly, then greeted everyone: "Come here to help and push the boat up the river."

At this time, Zhao Kuo and William discussed it and also spoke: "The flow of this underground river is the same as the direction of our destination. If you walk here, you will probably save a lot of time. Moreover, such a strange thing happened here, we have the obligation to figure it out. Everyone helps to push the boat into the river."

The iron boat is leaf-shaped, with the middle of the two tips and the middle sections. There are several oars in each boat, a total of 7, and each one can sit about three or four people.

Zhang Xingkuo and Sun Guofu worked together to push an iron boat into the river from the shore, and then stepped on the iron boat first and sat at the bow of the boat. Sun Guofu stood there and thought for a while, and then called Fatty Wang forward, "You and this little brother Zhang are sitting in front and are just a vanguard. If you encounter something strange on the way, just give it a shuttle."

"Don't worry, Commander Sun, with my Fat Master here, even if I am the King of Heaven, I will let him go without a return." Fat Master Wang pulled the bolt fiercely, then placed the gun flat on his knees.

Seeing this, the others also needed to find partners to get on the boat. Zhao Kuo and Professor Li Mengfan were one, William and medical soldier Nathan were one, Scott and Explosive soldier Chandler were one, and Sun Guofu got on a boat with the judo master Kardashian.

"Everyone row in." Sun Guofu handed a paddle to Kardashian: "No matter what you see, don't panic."

This underground cave, in the words of the time, should be called a karst landform. Zhang Xingkuo once heard of this landform at a comrade who was serving in a secret surveying department.

The underground river meanders and the cave is well connected, and there are countless entrances and exits inside, which is like a maze.

The two of them rowed together to slowly move forward on the underground river, but it was not very difficult. The underground river originally had a stream of water, as if it was surging undercurrents, so they took the iron boat in a fixed direction. As for the oars, it was mainly used to push it away when the iron boat was occasionally washed away by the water and hit other rocks.

After walking forward for about a quarter of an hour, Zhang Xingkuo, who was in the front, suddenly felt that the water was getting faster and faster, and it was obviously going down the road, and the ground height gap became more and more obvious.

In the cave, although there was occasionally a faint fluorescence on the stalactite above the head, the light was too weak. Generally speaking, it was pitch black around and there was no five fingers. So Zhang Xingkuo immediately took out the flashlight, tied it with a rope and placed it on the bow of the ship.

Suddenly, the iron boat was shuttled through the river and came to a cave with a wide environment. Fatty Wang, who had been silent, suddenly raised his hand and shouted in a low voice: "Be careful behind it! Something is wrong in front."

As soon as he finished speaking, he suddenly inserted his oar into the water. The oar was about one person's height and directly inserted into the riverbed of the underground river. The iron boat immediately stood up, but as the water flowed, the hull crossed the middle of the river.

Zhang Xingkuo was a little nervous. Just as he was about to say something, he saw Fatty Wang pointing in front and whispering: "Look!"

At this moment, the underground river was in a cave, and the surrounding terrain was much wider. On both sides of the river, there was a flat rocky beach under the mountain walls. On it, some dark and black vegetation like dry vines were occasionally seen sliding down from the stone peaks. It looked like a black curtain hung on the mountain wall.

The direction of Fatty Wang’s finger was on the rock beach.

Zhang Xingkuo didn't see clearly at first, but when he narrowed his eyes and looked over carefully, his hair all over his body couldn't help but stand up!

I saw that there seemed to be bulging stone bags on the ground on the black river beach, which looked like they were pitch black. But when I looked closely, the stone bags seemed to be slowly squirming, but the degree of wriggling was very weak. If I didn't stare and observe carefully, it would be ignored.

But once you stare carefully and look a few more times, you can recognize it. They are... mollusks that look like snakes, but they fold up their bodies and curl up into a ball, just like mosquito coils.

"This... isn't this the big python we encountered outside guarding the entrance of the cave?" Zhang Xingkuo roared in his heart. However, the animals at present are more than one size smaller than the python he encountered before. However, their appearance has not changed at all, and there are a lot of them. Looking around, there are dense rock beaches on both sides, and I don't know how many of them are.

In Zhang Xingkuo's view, those curled snakes had thick arms, but they seemed to be hibernating, with their eyes closed and their bodies occasionally wriggling. If you don't look carefully, you will really mistake it as a stone.

At this time, Sun Guofu also discovered the difference ahead. He frowned, but his expression was extremely calm: "Next, the two people on the boat work together, we will control the iron boat to continue down the river channel, and we will pass through this cave... The water will walk towards our iron boat. If the iron boat is washed to the river beach, use the oars to support the boat, but everyone should pay attention. When using the oars, don't touch those things! Remember to remember! Just keep the boat not washed ashore!"
Chapter completed!