I said "um". It doesn't feel good. Listened again. The more you listen to it, the more it feels. This is definitely not talking. Can't be sure of laughter. But it's very similar.

Several others were also aware. Anin stopped calling. We looked at each other. I was a little surprised.

The team doctor said, "What's the matter?" How are they in ...... Laugh? Isn't it so nice to hear us? ”

Tashi asked, "You smile like that when you're happy?" ”

A-Ning also looked puzzled. She doesn't call anymore. Instead, I continued to debug the walkie-talkie. I want to make the sound inside a little clearer.

Debugging didn't work. But the voice was a little louder. Let's stick it up again and listen. I listened a little more clearly. It's really very much like a sneer. Sounds so resentful. It's not sent by a normal person at all. It's like a madhouse maniac. But listen carefully. Feel this laughter again. There are some other voices. Very slight. The two voices mingle together. It sounds quite eerie in this terrifying devil's town.

Listen to this malicious sneer. I felt very uncomfortable. Even Tashi, who had come all the way with a stinky face, was now scared. The face is pale. Swallowed saliva: "What's the matter." It's a fucking ugly laugh. ”

Aning gestured to him not to speak. Hold the walkie-talkie close to your ear. Listened for a while. He said, "This doesn't seem to be a human voice!" ”

"Don't talk nonsense!" The team doctor shouted. "It's not a human, it's a ghost?"

"Listen carefully." Aning let us closer. "The frequency of this sound is fast. And. The intonation is almost flat. It's been ringing for five minutes. You try to laugh like that for five minutes for me? ”

I'll hear it. It feels like it makes sense. He asked, "So what is this sound?" ”

"This frequency. It should be a mechanical sound. For example, the watch is attached to the walkie-talkie. However, the frequency of listening is not fixed. It's also possible that someone is constantly scratching the intercom with their fingernails. "A-Ning demonstrated." Plus the sound of static electricity. That's what it looks like. ”

"Grab the walkie-talkie mouth with your fingernails. Why would they do this? "The team doctor said." Why not shout. That way, maybe we can hear it without having to go to the intercom. ”

He said it. Both Tashi and Aning's faces changed. I also suddenly realized something: "They may be in a position where they can't scream." Nor can they speak. In a situation where we can only be contacted in this way. ”

"Quicksand pit! They're stuck in a quicksand pit! Tashi shouted. It may have sunk to the point that only a head remains. In that case. A fart will sink! ”

"Dog's!" We got nervous all at once. They all stood up immediately. Look into the darkness around you. Where is the heart?

A-Ning maintained a considerable composure at this time. She clapped her hands and told us not to panic: "Calm down, calm down." They can signal that they are safe for now. We get the signal. Explain that their walkie-talkie must be nearby. We should be able to get there soon. ”

"But say it's nearby. It's also very big around here. How to find it? ”

A-Ning let us follow. Started walking around with a walkie-talkie. Determine the direction in which the signal is coming.

I'm right. How I didn't think of that. In vain, I am a learned man. In the form of this. Able to receive radio signals. There must be a notch-shaped shape of radio waves around it. And the magnitude of the degree of radio fading. and distance are closely related. So by the strength of the radio wave received by the walkie-talkie, we can tell whether we are approaching or not.

We'll follow right away. Walked around. It was found that the signal was loudest in the depths of the canyon. Apparently the source of the signal was inside the canyon. A-Ning greeted. We ran inside as fast as we could. At the same time, the flashlight has been thrown off. Tashi yelled, "Watch your step. Don't look for it! ”

We can't do that much anymore. Look for it as you run. Soon the canyon will come to an end. In front of us. A large half-moon mound appeared, blocking the way. It is 50 meters high. Like a giant sail. Very steep. It looks like you can't climb over.

Anyone who knows walkie-talkie will know the situation at a glance. Such a form. The radio signal is the weakest. It's the same as in a valley in a big mountain. Yet we look at the walkie-talkie. The voice was now very clear. It has not diminished in the slightest. That is to say. The thing that gave the signal was definitely in the area of about 110 meters long and wide of this half-moon mound siege.

"Right here?" We all broke out in a cold sweat. Doesn't feel right. Because of the flashlight sweep. The square of this piece is clear at a glance. Not even a ghost.

"Has it sunk already?" A bad thought came to my mind.

A-Ning shook his head. Because the voice on the intercom was still ringing. He called for us to separate and look for it.

We spread out. Carefully search for traces of the face. Soon Tashi shouted. There was a discovery. We rushed over. There were very messy footprints on the found. Not ours.

"They're right here." Tashi Road. "This half-moon-shaped mound is like a haven. They must have been forced in by the wind to take refuge. And there's almost no wind in it. Footprints will remain. ”

We immediately followed the footprints and looked for it. The sandy footprints are very clear. It can be seen that it is three people. We followed the footprints more than ten meters away. And they came to the root of the mound. The footprints came to an abrupt end. There are no turn-around footprints. There are also no quicksand bunkers.

"Damn. Went into the mound? Tashi smacked his lips.

"It's not!" A-Ning showed a strange expression. She looked up at the mound. It's pitch black up there. Nothing can be seen. "They climbed up."

That's weird. We were all stunned. Look up. I saw that the backlit mound was pitch black. It's like a huge black curtain of pure black sè. Our flashlight swept shè up. Because it's just too high. A small flashlight can't get a full picture at all.

What did they go up there for? Is there something on this mound?

A-Ning asked us to back off at this time. Then pull out the flare gun. A shot was fired into the air.

Searing flares flew into the air. After the explosion, the entire area was lit up as if it were daylight. That moment. All the scenes hidden in the shadows around are revealed.

We all looked around. It's a little uncomfortable for the eyes to be so bright. Haven't seen it clearly. I heard A-Ning exclaim: "Oh my God! ”

We hurriedly squinted our eyes and looked up into the air. Under the flickering glow of flares. We see halfway up the hill in the shape of a half-moon huge mound. It turned out to be inlaid with a huge object. Half buried inside the mound. Half of it is abruptly horizontal in the air.