The passage under the entrance of the cave is long and narrow, and next to it is an abyss with no end in sight. If you accidentally step on it and fall in, no one knows what the consequences will be. Fortunately, the four of them used rescue ropes to pull each other away.

Together, they felt a sense of security. With the lights above their heads, the four of them carefully and slowly walked down the wall.

There was silence all around. If a person keeps walking in this dark and depressing environment, he will eventually go crazy. Fortunately, there are companions around him who can talk to him and can alleviate this emotion to some extent.

Relatively speaking, Wu Wenzhen and Laura have more topics to talk about because they are more familiar with each other. Min Xiaoyan's dull personality is not easy to blend in. However, when they talk about common topics between girls, they quickly eliminate the barriers between them.

.

If faced with one of these three women alone, Li Zhao can handle it with ease, but being caught between three women makes Li Zhao, a grown man, a little embarrassed. Especially the topic of Laura and Wu Wenzhen

He was the most open-minded. When he talked about some sensitive topics about women, Li Zhao was so embarrassed that he wanted to cover his ears. At this moment, he regretted not bringing another boy into the group, at least this way he would not let himself go too far.

of loneliness.

This downward journey lasted for about 20 minutes before finally reaching the end, and what stood in front of them was a pool of water that looked like a small lake. To be precise, the area where they came down from the stairs was just right.

It is located in the center of the lake, and the range of movement is only thirty or forty square meters, just like a lonely island.

The area of ​​​​this lake is not large, about two to three hundred square meters, and is surrounded by towering stone walls. An inward waterway can be vaguely seen next to a mountain wall of the lake, but due to the cave

Due to the low visibility under the conditions, this is the furthest point that the searchlight can reach.

"There is no road ahead, why don't we go back and prepare first!" Min Xiaoyan said. Although she doesn't know much about this aspect, she still has good judgment, and if she really needs to swim or dive, she also needs to

Go back and change equipment.

"There's no need to rush back now. Since we're already here, it's better to explore the surrounding situation. I also want to test whether there is any problem with the water here." Wu Wenzhen said.

In terms of experience in adventure survival, she is currently the most experienced in the team.

When Wu Wenzhen was preparing to take the water for testing, the other three people were also checking around. It was difficult to find anything in this small area of ​​30 to 40 square meters, so they didn't find anything special at the moment.

"I want to see how deep this pool of water can be!" Laura took out a signal ball from her backpack and threw it into the pool. After a few splashes, it finally emerged from below.

The light was very bright, but then it became darker and darker, until it finally disappeared completely.

"Is it extinguished?" Li Zhao didn't quite understand these things, so he asked curiously.

"The light of the ball can be seen 10 meters above it even if it is in the water, and it remains for 5 minutes, so it must still be bright at this moment. This proves that the depth of the pool is far away

It's beyond this range, but luckily I have another hand prepared." Laura said, then raised her wrist, and only then did Li Zhao realize that her hand was still covered with a rope connected to the signal ball.

Then, following her movements, she finally pulled up the signal ball, and sure enough, she found that it was still shining brightly. The signal ball obviously did not sink completely to the bottom, but there seemed to be some traces of slight corrosion on the rope. It is estimated that if soaked

The longer it takes, the more likely it will be impossible to take it back.

"It's finally done, we should go back first!" Wu Wenzhen had also finished collecting water samples, so she urged a few people to start returning.

The return speed was obviously much faster. Since they were familiar with the terrain, it only took them less than half the time to return to the entrance.

"Why did you come up so quickly?" Maicon was obviously puzzled that they would leave and come back so quickly. Only after Li Zhao described the following situation did he understand what was going on.

"So, are you planning to dive down to find out what's going on this time?" Maicon asked again.

"According to my research on the water quality of that lake, I found that it contains a very high concentration of sulfide, and even wearing a diving suit cannot completely isolate the infiltration of harmful liquids.

If you dive rashly, the consequences will be disastrous, so you have to make a new plan." Wu Wenzhen said.

I have to say that Wu Wenzhen is really good at a lot of things. She deserves to be a teacher. In addition to kung fu and music, she even knows some basic research in physics and chemistry.

"Then there is really no way out?" Li Zhao said with some regret. If it really doesn't work, then he would rather give up than risk the safety of his team members.

"Actually, it's not really bad at all. I think a diving suit made of the same material as ours can still swim in the water for a while. But the time must not be too long. If it is within 5 minutes, it should be fine." Wu Wen

Zhendao.

"Don't we have a hovercraft? Is this okay?" Laura asked.

"The hovercraft is made of plastic, which will dissolve over time. It is very likely that the boat will start leaking when it reaches the center of the pool.

But your words reminded me that it would be great if we could build a bamboo raft. Its corrosion resistance is the best. But we definitely don’t have it on hand, and bamboo will not grow on the island, but

But there are many suitable trees. The effect of good hardwood is the same, and it should be enough to support us until the end of our operation." Wu Wenzhen explained.

"Is this the pace of logging and building ships? Speaking of which, I have never done anything like this before, but if everyone works together, it should be able to be completed quickly." Laura said, she felt a little eager to give it a try.

"What are you thinking about? Such a time-consuming boat construction will take at least two or three days before it can be used. Moreover, we cannot get in such a hole even if it is doubled in size. But the 'New Starting Point' left

No, it should be too late to contact us right now. I guess they are probably still in Tierra del Fuego at the moment. That would be easier. We can let them directly purchase the supplies we urgently need and then come over. If everything goes well, it may not be possible.

This can be completed in one day." Li Zhao had a different idea.

"Good idea, I'll contact you right away!" Zhao Zhi first expressed his agreement, while others had no objections.

After Zhao Zhi contacted him, he learned that the yacht "New Starting Point" was indeed moored at the port of Tierra del Fuego, which made things simple. Then he entrusted the captain to go to the shore to purchase a bamboo raft and bring it back. Li Zhao and the others

Not idle, he expanded the size of the entrance hole a lot, which should be enough to bring the bamboo raft in.

When "New Starting Point" came again, it was already the afternoon of the day, and with the concerted efforts of everyone, the bamboo raft narrowly entered the cave entrance.

The four-person expedition team also set off. In addition to taking the bamboo raft again, they also brought diving suits with them.
Chapter completed!