PS: If you want to hear more of your voices and receive more of your suggestions, search for the WeChat public account "qdread" now and pay attention to it to give more support to "Song of the Desert"!

Qin Zhen continued to climb down a little absentmindedly, thinking about what that terrible mermaid would look like. The dreamy image in the fairy tale is no longer there, and who can think of it as some kind of mascot when it comes to the tune that resembles a soul song?

Thinking like this, before I knew it, I was about to reach the 800 meters that Yebei said.

Jiang Qi glanced at the watch-like instrument on his wrist at this time, and then shouted to everyone: "It's 680 meters!" ”

Probably because it wasn't because of the descent from diving, the speed and ease of the 700-meter descent were really different from what Qin Zhen had thought before. Juntian's speed was the fastest, and at this moment he seemed to have reached a position of about 800 meters.

I heard Juntian's somewhat empty voice from below: "I seem to have seen some rocks......"

His voice was hesitant, probably because it was too dark down there. Counting on the little light of the headlamp, you can't see too far away.

But in less than three or five seconds, Juntian's very surprised voice came from below: "Eh...... What's—What is this? Xia Yudong, hurry up! ”

Yudong has been maintaining a descending speed, not because he can't be fast, but because he is afraid of Qin Zhen and a few of them, for fear that if they have an accident, no one below will be able to take it. That's why it's always kept going at about the same speed, slowly descending.

At this moment, when he heard Juntian's surprised voice, Yudong grabbed the climbing rope with one hand and left the rock wall with both legs, like a stunt...... Instantly slid down. It's not far anyway. He also knew that there would be no major accidents if the people above had any accidents. Besides, there is still Night North on it.

Qin Zhen was anxious to hear this, and he also wanted to go down and see what the situation was that could make Juntian so surprised. So in a hurry, he also followed Yudong's example, let go and slid down. But this 'Spider-Man' skill is the first time to show it after all. Not very skilled...... Therefore, this letting go has a tendency to be uncontrollable!

In the end, seeing that the rhythm was about to be unstoppable, Qin Zhen scolded in his heart: Aren't there already rocks down there? Why can't you step on it yet??

Just when he began to panic, he suddenly felt that he was being dragged by a pair of hands! And with a horizontal force, he staggered to stand on a stone platform!

Qin patted his chest in shock, glanced at Yu Dong, who 'reached out to him' in time, and made a gesture of salute and thanks.

It turned out that this stone platform was not in the middle of this abyssal well, but on one side. So when people come down from above. If it slides directly like Qin Zhen just now, it will inevitably slide down like this......

"This is yin enough......" Qin Zhen calmed his heartbeat and shouted at the top: "Comrades, be careful when you come down!" Steady, it's not the end, but there's a rocky platform on the side! ”

After a while, several people stood on this platform. There was still a bottomless abyss beneath their feet, opposite. It is a 'waterfall' formed by the water falling from the surface of the sea. Honestly, it's an incredible sight now! A silver waterfall falling from the opposite side. That's the water above your head!

Lao Gu took two steps forward, glanced down, and said unhappily, "Why haven't you found the bodies of those grandsons until now?" ”

"......" Qin Zhen glanced at Lao Gu helplessly and said, "You haven't had anything to do here, could that guy just die?" You said that too soon......"

Lao Gu glared at Qin Zhen unconvinced, then glanced at the abyss below and said, "If I knew this, I should have brought a pair of fishing rods and fishing gear." There is nothing else in this place, and it is not a problem to catch some seafood. lest we be trapped at the bottom of the sea. ”

Lao Gu thought about the long term, and even thought about the food problem in case they were trapped in the future.

He Xi couldn't help but smile at this time and asked Lao Gu: "I don't know what kind of biggest fish you have ever caught, Brother Gu?" ”

As soon as Lao Gu heard He Xi ask him, he hurriedly pouted and said, "Sister, have you seen Spielberg's "Jaws"?!" ”

He Xi couldn't help but show a surprised expression after hearing this......

Then. I heard Lao Gu say shamelessly: "Well, it's about the same size as the DVD box of "Jaws", but I think it should be enough for you to eat, what do you say, girl?" ”

"......" He Xi's eyes widened blankly, looking at Lao Gu without saying a word.

Qin Zhen couldn't stand it from the sidelines, so he pulled Lao Gu over and said, "You talk less nonsense and do more business!" With that, he pulled Lao Gu to Yebei's side.

There are also Yudong and Juntian in the north of the night, who are standing on the side of the rock wall at this time, looking at a dark and swarthy hole. Qin Zhen and the others walked over and took a look, and they probably guessed that this was almost the entrance to a certain place. After entering from here, it may be the maze of the word 'Hui' that Yudong said. This bottomless abyss is the hollow place in the word 'hui', and after entering from here, it is going all the way down around this abyss.

No matter how you think about it, it seems like a complicated thing. Qin Zhen raised his eyes and looked at Yu Dong and asked, "Just this entrance, is it from here?" ”

"Come in, the road here is very deep and winding, and it should be the route in the prompt. Everyone should wear protective equipment for diving, and there is no waterway in it. Yu Dong said quietly.

Knowing that sooner or later there would be such a moment, but when Qin Zhen heard that he was about to dive into the deep sea, he couldn't help but take a few deep breaths to relax his mood.

Following Yudong and they walked into the dark cave, only to find that it was really a "cave", and they couldn't even walk up straight. Especially Lao Gu, he really suffered a crime to walk in this high. However, I think that in the glaciers and ice caves of Tibet, I have not encountered such a situation before, if this distance is not very long...... There should still be no problem.

Within thirty or fifty meters, several of them heard a burst of ethereal sound from the deeper bottom!

Everyone stopped, and Lao Gu immediately changed his face as if he had a nervous reflex! He dragged Yebei in front of him hard, and shouted in a low voice with great nervousness: "Night boss, handsome little brother!" Listen...... This、This is the voice that I and Dong Shao heard before!! Dong Shao said. It's called the Soul Song...... yes, it was from those mermaids! ”

Yebei turned his head slightly, signaled Lao Gu not to be nervous, and then beckoned Juntian in front of him and said, "That voice is far away from us, it can't really hurt us, keep going, you pay more attention." ”

"Hmm." Juntian nodded. And he kept going.

Qin Zhen, who was following behind, asked Yebei in a low voice at this time: "Brother Bei, you said that voice is far away from us...... How far away? ”

"About three thousand meters." Yebei replied without thinking about it.

"Three thousand meters?? The sound of that thing can penetrate three thousand meters of water so that we can hear the song?? Qin Zhen stopped in disbelief.

Behind Qin Zhen was He Xi, seeing that he stopped, He Xi gently pushed him and said, "Except for the sound that cannot be transmitted in a vacuum, it can be transmitted under any medium. Sound travels much faster in water than in air. The speed at which sound travels through the air is 332 meters per second, while in the water it travels at a speed of 1450 meters per second. ”

Qin Zhen walked forward and continued to say incomprehensibly: "No, what you said is in the water." But we're not in the water right now. If that thing is a sound coming from underwater, it travels through the water, but we are not in the water, how can we hear it? It's like we can't hear the movement on the shore when we dive! ”

Everyone heard Qin Zhen's words, and He Xi also paused, and a terrifying guess spread in everyone's hearts.

Yes, what Qin Zhen said was not wrong. For example, when a person is swimming and diving, if he dips his head below the surface of the water. It is impossible to hear the people on the water or other sounds. That's because the sound on the shore is transmitted through the air, after the person dives into the water. The ears are blocked by water, which isolates the air from the outside world, so there is no way for the vibration waves in the air to reach the ears, so there is no way to hear them.

In the same way, when a person is on the shore, the sound below the surface of the water is also cut off. It's also something you can't hear at all. Now, if they could hear the mermaid's voice in this dark cavern, it would only mean one thing - no matter how many kilometers they were separated from...... That thing doesn't just survive underwater!

At this time, Lao Gu comforted everyone in a trembling voice and said, "Uh...... Let's not get too nervous, that doesn't necessarily mean that it's an amphibious thing...... What if they just come out of the water for a breath......"

Before Qin Zhen could refute Lao Gu, Yu Dong said lightly: "Don't worry about this matter, anyway, we have to go into the water sooner or later." It doesn't matter if there is an underwater cave down there, and it doesn't matter if it can go ashore or not. With that, he commanded everyone to continue walking. The road ahead is getting wider and wider, and it seems that they are about to reach the corner of the word 'return'.

Although what Yu Dong said was a bit shocking, it was right to think about it. Although they are not in the water yet, there may not be such space underneath. By then, they would be in the same waters as the mermaids. What difference can there be between something that is on and cannot be ashore?

And in the next three to five minutes, there will be a strange sound, and you won't feel very frightened when you listen to it. It seems that it is still the same truth, everything is the same, just get used to it...... (The novel "Song of the Desert" will have more fresh content on the official WeChat platform, and there will also be a 100% lottery gift for everyone!) Open WeChat now, click on the "+" sign in the upper right corner to "add friends", search for the official account "qdread" and follow, hurry up! (To be continued......)