There was a loud "bang" sound in the valley, and then the birds flew, on the stone wall above the highest peak, and suddenly the smoke and dust were everywhere, and then I don't know how, suddenly the smoke and dust were quickly blown away, and the whole process was over in less than five minutes.

On the other side of the mountain wall, it was really the four of them, and the four of them slowly went out to take a look after hearing the rubble falling continuously.

The fat man was surprised and said, "Good guy, why did you collapse such a big hole?" ”

Gao Chao noticed that what the fat man said was true, and where he placed the explosives, a large hole with a diameter of almost ten meters suddenly appeared, which Gao Chao and Xia Qing did not expect.

"It is estimated that it is ......" Xia Qing thought and said: "It is estimated that there is a lot of pressure inside the passage in the mountain, and after the explosives are detonated, this pressure is released, so the explosion effect has increased exponentially, resulting in such a large hole." ”

Just when they were still a little stunned, the fat man said again: "Strange, you see, how has the dust on it been sucked back?" Isn't this place supposed to be out of the wind? ”

Xia Qing listened to it and quickly took a look at the situation above, and sure enough, all the smoke and dust were quickly sucked into the hole of more than ten meters, it was like a huge vacuum cleaner, and in an instant, everything around seemed to be calm again.

Gao Chao looked back at Xia Qing and said, "Could it be that there are other organs in here?" ”

Xia Qing shook his head and said: "Maybe this is a normal phenomenon, when the internal pressure is too large and released, it will produce a negative pressure again, and it will suck the air inward." ”

Gao Chao thought for a moment and suddenly asked, "How long will this suction situation last?" ”

Xia Qing shook his head and said: "I can't say this well, it depends on the design of the internal passage, maybe a few minutes, maybe a few hours." ”

Gao Chao nodded and said: "That's a good time for us, hurry up, follow me, let's use it to go in when it is pumping in now, so that it may save a lot of effort." ”

The fat man thought for a moment and said, "You mean to suck us in too, don't you?" ”

Gao Chao patted the fat man and said, "Actually, I mainly sucked you in by the way, because I was most worried about you." ”

The fat man has nothing to say, the problem is like this, the fat man is not good at rock climbing, and now if he is asked to drill the tunnel, he really has a little psychological pressure, if the tunnel is wide, it is fine, if it is particularly narrow, the fat man really doesn't know what to do.

Thankfully, when they finally climbed up to the hole in the rock wall as fast as they could, they found that the structure inside was completely different from what they had imagined.

Inside the big hole with a diameter of more than ten meters, there were three holes of different sizes, that is to say, the inside of the big hole they blew up, it was also divided into three small holes, the largest of the small holes was about two meters in diameter, and the smallest one was more than 50 centimeters, not round, but square, and at a glance you knew that it was artificially carved out.

As soon as the four of them climbed up to the entrance of the cave with a diameter of more than ten meters, they felt a gust of wind heading inward, although the wind was not so strong, but it was not small, and even the backpacks on their bodies could be dragged inward.

Gao Chao tried to speak loudly, but no one could hear what he was saying, and in the end he only pointed to the largest hole, which was two meters in diameter, and then walked towards it first.

What he didn't expect was that the edge of the two-meter-diameter cave was much stronger than the outside, and when he came to the hole, he was almost dragged into it by pressure, and behind him was the fat man, who didn't stand firm at the moment, and was directly the first to be sucked into the hole.

This startled Gao Chao, he didn't think about it, he immediately let go of his hands, and he also entered the square hole with the wind, and then Xia Qing and Xinlan also followed, and the four of them disappeared into the depths of the cave in a blink of an eye.

Inside this square hole, Gao Chao felt a huge wind, fortunately the cave ** part is also spacious, and flat, he entered the kung fu for a while, and suddenly found that a stone wall appeared in front of him, it looked like it was about to turn, but on the stone wall directly opposite, there seemed to be a strange figure.

This shocked Gao Chao's heart, and because he was a little nervous, Gao Chao didn't think too much, but picked up the black-barreled rifle, ready to see the situation in front of him clearly, and then make plans.

Although his whole state is walking, it is like the whole person has been sucked up, although he tries to control his pace, but the speed is still not slow, and he has not seen the details of the figure clearly, and he has already collided with it.

"I'm grass!" As a result, the figure scolded and shouted, "Old Gao, can you be lighter?" ”

Gao Chao realized that this figure was none other than the fat man who had been inhaled before, and his whole person was now like a fat gecko sticking to the wall, not daring to move more.

The wind is not small, although Gao Chao heard that he was fat, but it was difficult to communicate with words, he was trying to say something to the fat man, but there were suddenly two very violent impacts behind him, this time, Gao Chao almost vomited blood, especially the fat man at the front, and scolded his mother loudly.

Gao Chao turned around and saw that it was Xia Qing and Xinlan, these two women probably hit their bodies directly because of their weight, but fortunately, they did some cushioning, otherwise they were really easy to get hurt.

Xia Qing shouted loudly: "Old Gao, if this kind of wind goes inside, it will be dangerous!" ”

Although Gao Chao couldn't hear what she was talking about, seeing Xia Qing's worried look, he probably guessed what kind of feelings she wanted to express, so Gao Chao nodded and looked at the passage after turning the corner with his headlamp.

As a result, when he saw this, he couldn't help but shake his head and shouted, "It's okay, you see, it looks like an upward staircase when you go inside." ”

Everyone used their headlamps to shine, and sure enough, just in front of them was almost ten meters away, it was already a staircase going up, although the stairs looked a little rough, but the uphill slope was certain, which means that even if the wind was still strong now, they could still maintain their safe speed with the help of the upward stairs, so as not to hit the stone wall because of the strong wind, causing injury.

Xia Qing thought about it before reluctantly nodding, agreeing with Gao Chao's idea.

So Gao Chao pointed to himself, meaning to let them learn to go in like themselves, only to see Gao Chao support his body with his arms, and then walked towards the inside of the cave in the other direction, his arms were tightly attached to his chest at first, on the one hand, to reduce the pressure caused by the wind, on the other hand, to protect himself, but he suddenly opened his arms again, and as a result, the wind immediately produced a very large thrust on him, and his whole person instantly seemed to fly, He made a five- or six-meter line straight ahead, then he tightened his arms again, and this time his feet landed, and he leaned back with his body to control his speed.

Gao Chao looked back at everyone, and then gestured with his hand to make an "OK" gesture, Xia Qing saw Gao Chao's movements, and also responded to one, which can be regarded as already knowing Gao Chao's meaning.

Xinlan may have felt that she was a little left out on the side, so she walked towards the cave ** part of the second one, Xia Qing wanted to stop her, but she didn't succeed.

However, Xinlan's skills are not bad, I saw that she learned to take a few steps quickly, and then opened her arms, and suddenly, the whole person flew up, which made her a little panicked, and suddenly her body was balanced, and the speed became extremely fast.

If a person can stay calm at such a time and contract all her hands and feet, she may lose so much thrust immediately, but if a person starts to panic, then her natural reaction can only be to scratch around, hoping to grab some life-saving straw.

The current state of Xinlan, of course, is the latter.

The more Xinlan opened her arms, the greater the pressure on her body, and the whole person flew faster and faster, and in the blink of an eye, she had already arrived in front of Gao Chao.

Faced with such a situation, Gao Chao had no other choice, he could only hug Xinlan's people, but because the speed was too fast, the wind seemed to be getting stronger and stronger, so the two of them were blown up by the strong wind together.

This is not the most fatal, the worst thing is to go forward about four meters, it is an upward slope, there is no doubt, this cave has gone to the top of the slope, Gao Chao held Xinlan and hit the bend of the slope heavily, but Gao Chao did not let go of Xinlan, he hugged her tightly, but the two of them were pulled up by the strong suction, and in an instant, they disappeared from the sight of the fat man and Xia Qing.