"Take it, one day I'll give it to you really. Lin Rui quietly handed the grenade ring to Yelena.

Then he turned around and gritted his teeth, "But what are we doing now, what are we doing? ”

"But we can't get out. ”

Crazy Horse whispered.

"If you don't have a way, you have to figure out a way, and if you don't have a way, dig a way. We have come through a rain of bullets, we have experienced many cruel scenes, we should not fall here, nor should we give up at this moment. ”

Lin Rui shouted.

"It's all about cheering me up and finding a way. ”

"A hundred meters of underpass, blocked at both ends to less than twenty meters, how can we escape? Dig thirty or forty meters with bare hands? We are not superhuman. ”

Crazy Horse whispered.

"Maybe it's not as difficult as you think. ”

Lin Rui shook his head and said, "Such a landslide cannot be completely sealed. There will always be gaps in the place of the collapse. With an ultrasonic detector, we can tell if there is a void and dig along the location of the gap. If you don't have tools, you use a combat dagger, or dig by hand. ”

"We can also use explosives in small quantities, divide them into smaller portions, and use them only when we encounter obstacles. It is used to clear obstacles, but try not to cause secondary collapses. ”

Tang Kun nodded.

"Anyway, I don't want to sit down and die. ”

Lin Rui said in a deep voice.

Crazy Horse stood up and pulled out the ultrasonic detector, and when he turned it on, the results of the area scan began to appear on the LCD screen.

The sides of this section of passage were indeed very blocked, with a lot of collapsed masonry, concrete blocks and earth.

However, such a landslide does have a certain void as they estimated, but it is still a very difficult task to dig out.

Lin Rui was silent for a long time and said, "I have an idea. ”

"What?"

The shore said in a deep voice.

"The landslide caused by the explosion blocked the passage, but where did the collapsed masonry and earth come from? This means that the passage below is blocked, and there may be some space in the upper part of the passage. If we can get to the top of the passage, maybe there will be a glimmer of life. ”

Lin Rui raised his head and said at the top of the road.

"Go up there, ventilation!"

Shogishi suddenly woke up.

"Yes, this kind of underground air defense facility, in wartime, many people will come in and hide from the gap. Therefore, the ventilation and exhaust facilities must be made very large, otherwise they will not be able to meet the requirements at all. ”

Tang Kun also reacted.

"There are vents every 10 meters, and the ducts from these vents should be above us. ”

Lin Rui nodded, pulled out the dagger at his waist, and drew a figure on the ground.

"You guys and we're in the passage, where explosives have been set up at both ends. After the explosion, a large amount of earth and rocks fell from above, blocking the passage. But these earth and rocks all fall from above, blocking such a large space below, then in the upper part, there must be a collapsed space. Because these earth and rocks did not come out of thin air, but just collapsed from above to below. So if the bottom is blocked, the top will be empty. ”

Lin Rui explained.

"Then we can go up to the top of the passage through the guò ventilation duct. Because the ventilation duct will not collapse, at most it will be broken and blocked. There is a great possibility that we only need to clear a very small amount of soil to dig up the upper space. And follow the space formed by this collapse, climb past it, and reach the other side. ”

Shogishi nodded.

"That's right. ”

Lin Rui nodded and said, "Let's get started." ”

Several people immediately took action, even the underground passage of a large air-raid shelter was actually not too high.

Because the design takes into account the safety and resilience of the structure, the height of such facilities is generally relatively low.

Crazy Horse and Tang Kun held each other's arms, letting Lin Rui step on their knees, upper shoulders, and finally leap high, their hands firmly attached to a vent at the top.

Lin Rui smashed the shutters on the vents with his fist and squeezed his body in.

The old vents contain the damp air that is characteristic of the underground.

The space inside the pipe was large enough for him to crawl forward.

It's just that after more than half a century, many of the original iron pipes have been rusted and damaged.

Lin Rui placed the gun in the crook of his arm to ensure that the tactical flashlight on the gun could illuminate the position in front of him.

Crawl sideways through the narrow pipe.

"What's going on inside?"

Shogishi whispered.

"Better than I thought, I could feel the wind in the pipes, so the air was moving. Even if there is an obstruction on the other side of the ventilation duct, it should not completely block the air circulation. ”

Lin Rui whispered as he climbed.

"It's just that these ventilation ducts are very old, and many places have rusted badly. ”

"Lin Rui, be careful yourself. ”

Yelena said in a continuous voice.

"He has no problem. We should believe him, you can rest assured. ”

Tang Kun nodded.

Lin Rui climbed forward for a while and finally reached the end of the pipe, as he thought, the mouth of the pipe was not completely blocked, but it was impossible to get out of the pipe, because the metal pipe was completely flattened and deformed by the falling rockfall at that end.

Although there is still air circulation, people can't climb it.

After Lin Rui tried it, he could only whisper through the guò wireless earphones, "I'm in trouble." ”

"What's going on?"

Shogishi immediately asked.

"The pipe at this end has been smashed flat, people can't get through, and there is a big rock pressed on it. I may not be able to use explosives. Because the gas produced by the explosion will be directed along the pipe to the other side, the amount of explosives used is small, and it will be difficult to have a destructive effect. And if we use it too much, it is very likely that there will be another landslide, burying us more solidly. ”

Lin Rui replied.

Tang Kun thought for a while and said, "I don't want to use explosives to do it, I can't go to this end of the passage on the other side first, maybe the other end will be discovered." Because since the air is circulating, the other side must also be circulating. ”

"I'm turning around, and to be honest, it's not fun to crawl around in this metal pipe. Makes me feel like a mouse. ”

Lin Rui said in a low voice.

The more he was in such moments of despair, he tried to make his tone as relaxed as possible to comfort his teammates.

"I'd rather be a cockroach, so that I can get through even the narrowest gaps. ”

Crazy Horse said with a wry smile.

"Relax, we can get out. ”

Jiangan patted Crazy Horse on the shoulder and said, "Lin Rui didn't give up, and we shouldn't give up either." ”

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