To be honest, who wouldn't be excited to see silver ingots? Of course we are no exception. If there is really a treasure here, it will be a huge unexpected gain.

When I bent down to pick up a piece of silver ingot and wanted to straighten up, I suddenly felt that my legs were weak for some reason and I knelt on the ground. I felt weak all over my body and my head was dizzy. My consciousness became increasingly blurred. I was just confused. I vaguely felt that someone was shouting something loudly, and then I seemed to be dragged out.

When I woke up again, I felt that I was already lying on the wet ground. Through the peripheral light of the flashlight placed next to me, I vaguely felt that Sister Li was lying next to me like me. Xiao Lei was half sitting on the ground, mouthing. Everyone was breathing heavily. Only Du Hongmei was relatively normal. She was kneeling next to me and Sister Li, observing our reactions. I felt my head hurt like it was split. What on earth was going on?

It took about ten minutes for the headache to gradually subside. I struggled to stand up. It was really uncomfortable because I was lying on the wet ground. But when I stood up, my head was still a little dizzy. Sister Li was helped by Du Hongmei. .It was also a little difficult to stand up straight.

Du Hongmei quickly asked us to walk a few steps higher. The night breeze blew gently, and I felt refreshed. I don’t know why. It was like taking Ecstasy. Before I knew it, I collapsed. On the ground. If it weren't for Xiaolei and Hongmei, Sister Li, we would probably have become part of the pile of bones.

But what exactly is going on?

Before Sister Li and I could ask, Xiao Lei let out a long sigh and said, "Today was really dangerous. Our lives were almost decided here."

After some questioning by Sister Li and I, we figured out what had just happened.

It turned out that when we arrived at the pile of corpses, Du Hongmei's backpack got caught on a branch and the strap slipped from one shoulder. So she stopped to tidy up. Just like that, she fell behind us. It was more than ten meters away. But in the dark, she could still know the direction we were going based on the sound. She didn't tell us loudly to wait for her because she was afraid of alerting others. And the three of us didn't pay much attention at the time. We all thought she was her. Right behind us.

And this situation happened when we were about to reach the pile of bones.

The pile of bones was located in a funnel-shaped low-lying area. When the three of us went down, we didn't notice anything unusual at all.

But Du Hongmei, who was behind us, was following us and was about to descend to the low-lying area when she suddenly smelled a strange smell. As a doctor, she is very sensitive to that smell: the smell of sulfur dioxide. The reason why she is so sensitive to this smell is related to her occupation.

Because she once worked in the emergency room for two years and encountered many cases of suffocation in cellars or mines. This is one of the very common cases. She has been exposed to many such cases, so she has a relatively good understanding of this situation. Duo. As soon as he smelled this smell, he immediately knew that this low-lying area was full of sulfur dioxide and carbon dioxide. The situation was very dangerous. So he didn’t care about anything else. He quickly shouted for us to go up. But it was still a little late. Me and Sister Li has already developed severe symptoms of poisoning.

Xiao Lei only felt something was wrong after he became dizzy. But after all, he is a special soldier who has undergone extremely strict training. His physique is much better than that of Sister Li and me. He is not as paralyzed as the two of us. In addition, Du Hongmei As soon as he shouted, he immediately knew our situation. He immediately held his breath, cheered up, and tried his best to drag Sister Li and me up.

And when Xiaolei was in the special forces, just like the American Navy SEALs, he received training in holding his breath underwater. His longest record was that he could hold his breath underwater for five minutes. This is unimaginable by ordinary people. It is this kind of excellence His ability and physique not only saved himself, but also saved Sister Li and us both.

After we escaped from this danger, the humble conical bone pit became the most terrifying place in our minds. We had never encountered such a danger in the most mysterious cave. Unexpectedly, we almost came close He lost his life in such an inconspicuous little pit... just as Xiao Lei lamented. Therefore, the place that seems to be the least dangerous can sometimes be more dangerous.

Du Hongmei took a look at the topography here and discovered that because of the special geographical location, this not-deep conical pit is the easiest place to accumulate suffocating inert gases. The density of these gases is often greater than that of air. Therefore, it is very easy to accumulate in this relatively low-lying place. When the corpses in the bone pit are rotting, it is easier to consume oxygen, making the oxygen in the pit even thinner. It can also produce sulfur dioxide. This gas is more harmful to the human body. These various factors caused us to quickly develop symptoms of poisoning as soon as we arrived in the pit. This is simply a natural "poison gas pit". I don't know if the corpses in the pit died of poisoning and suffocation by this gas.

When we set off, we all felt that this trip was very dangerous. But we never expected that the danger we encountered would be this kind. Just now, because of the emergency, we shouted loudly and turned on the flashlight to take pictures. Even the tall blind man still had If that monster is here, I'm afraid it has already been alerted, or has moved, or has taken precautions. If we continue to search, we will become very passive. We have no choice but to withdraw. This is the first time we act. The way it ended was really unexpected.

We returned to the original place where we landed in the valley. We took a photo with a flashlight and found that the rope was still there. We felt a little more at ease. Because of the special terrain of the valley, it can be said that the rope is the most important tool for entering the valley. It is necessary to use it every time. It is even more important to use it when going out. Without a rope, it is impossible to go out. And because it is in the mountains, there is no signal at all on the mobile phone. It is completely impossible to contact the outside world through the mobile phone.

In the dark night, climbing up the rope is more difficult and dangerous than descending. From the cliff above to the bottom of the valley, it is a full forty to fifty meters. Although the cliffs are not always 90-degree steep walls .But the gentlest part is estimated to be 70 or 80 degrees. Therefore, the rope is the only safety guarantee.

This time, Xiao Lei asked him to be the first to climb. I couldn’t help but admire him secretly, because no matter he was the first to descend along the rope or the first to climb up along the rope, in both cases Going down is the most dangerous. When you are the first to come down, no one will warn you in advance, so the risk of being attacked is the greatest. Similarly, when you are the first to climb up, no one above can do anything for you. You check whether the rope is tied firmly and guard the rope for you to prevent anyone from plotting against you.

I could feel that Xiao Lei was relaxed when he didn't come down this time. By the light of the flashlight, I saw him take out something from the backpack at the back...a very special small hammer and another bundle of rope. There are also some iron drill-like things, and there is a ring at the end of each iron drill. Sister Li and I don't quite understand why he still prepares these things. But he looks a little nervous and serious. .I didn’t ask any more questions.

But I could feel that Du Hongmei, who was standing next to her, looked at the equipment and nodded towards Xiao Lei as if she admired it. She said without thinking: "Xiao Lei, I have to admire you. You are still thoughtful."

When Xiao Lei heard Du Hongmei complimenting him, he raised his head a little embarrassed and smiled shyly at Hongmei. This made Sister Li and me next to him feel like the two of them were playing riddles.

Next, Xiao Lei came under the hanging rope and pulled hard with his hand. This was to test whether the rope was loose. Then let us turn off the flashlight. This is mainly to let the eyes adapt to the dark light. If you feel that there is no After asking the question, he took a deep breath, grabbed the rope and climbed up.

Whenever he climbed four or five meters up, he would take out his hammer and embed the special iron drill deeply into the cracks in the stone with the hammer. Then he would use another bundle of ropes to pass through the round hole at the end of the iron drill. Pass it through and then put the rope around your waist with a special buckle.

Only then did Sister Li and I understand. It turned out that he had used another rope as extra insurance. In case the rope we used for landing slipped, he also had this extra rope as protection to prevent him from falling off the cliff. It fell. But our rope was obviously tied to a big tree on the cliff. It was wound several times and tied with many knots. How could it slip off?

But you can never go wrong with caution. Multiple safety measures. After all, you feel at ease.

Just like that, Xiao Lei used an iron drill to make fulcrums on the mountain wall while climbing up. Then he passed each fulcrum with a rope.

Because it was too dark at night, we couldn't see him when he climbed to about ten meters. We could only hear the knocking of hammers intermittently, and the knocking sound seemed more and more distant. We knew that he was approaching. At the edge of the cliff, the three of us also hoped that he would go up quickly, because after he went up, we felt more at ease when we climbed up along the rope.

But just when we estimated that Xiaolei had climbed up to twenty or thirty meters, we were all worried deep down in our hearts. But the kind of accident that we didn't want to say happened happened.

I only heard Xiao Lei's exclamation from the cliff. Then from the walkie-talkie on my waist, Xiao Lei's hurried shouting came: "Get away quickly. Get away quickly..."

The three of us immediately ran from the place close to the rock wall towards the valley. Immediately afterwards, there was a loud sound of stones hitting the mountain wall. Several large stones fell from the sky and hit the place where we were standing, making a dull sound. I could feel the ground beneath my feet shaking slightly. Someone was throwing stones down from above.
Chapter completed!