Thinking of this, Yu Yifeng suddenly had a flash of inspiration and jumped up violently.

He shouted into the liaison, "Liquid nitrogen! Let's find out if there is liquid nitrogen! Or ice cubes...... As long as it's the kind that can lower the temperature. These bugs are afraid of low temperatures! ”

"Yes, yes!" A few quick responders immediately pulled out a few liquid nitrogen canisters from a corner and shouted hurriedly.

Also, there's a lot of ice in the food freezer!

The voices of other vehicles also sounded in the headphones: "Is it okay to have a fire extinguisher for dry ice?" ”

"Yes, as long as it's a cold object!" Yu Yifeng immediately replied.

Liquid nitrogen and dry ice are commonly used in laboratories, and they are also used to quickly freeze food and make fire extinguishers, so there are still some reserves on the car.

After two minutes, Yu Yifeng roughly counted it, and was slightly disappointed.

"Is that all?"

But it has come to this point, and it can no longer be forced. When they first left the flight base, they didn't know what to take with them. These things were brought in hastily and haphazardly, so the number is certainly not very large.

In less than a second or two, Yu Yifeng accepted this reality and said loudly: "Okay...... We turn on the energy consumption of the power armor to a minimum, and then spray some water on the body, and then spray some liquid nitrogen or dry ice to reduce the surface temperature. ”

"Everyone bring what they need and get ready to go! We can't afford to spend it here! ”

"Captain, let me go out and try it first!" Zhao Yao gritted his teeth and took the lead in speaking.

You can't let Yu Yifeng take the lead in everything.

To be honest, in Zhao Yao's mind, Yu Yifeng's life was more important than all of them combined!

Yu Yifeng was stunned, then nodded solemnly, he first sprayed some water on Zhao Yao's body, and then sprayed some liquid nitrogen. The temperature of liquid nitrogen is -196°C, and in an instant, it mixes with liquid water to produce a white mist that freezes the water into ice beads.

"Be careful, come back immediately if something is wrong!"

"Yes!"

Zhao Yao opened the door hard, and then jumped out first......

Facing the endless army of black worms, Zhao Yao's heart was beating wildly, and he felt that the blood in his body was about to boil! There was even a dense pile under his feet, and these black insects flew up sensitively before he could step on them.

In the face of the direct threat of death, he was of course afraid, especially after witnessing the death of several comrades......

Their entire faces were as if they had been splashed with sulfuric acid, and even their skulls were corroded, how could he not be afraid?

But there are some things that are more important than death. As a soldier, you must face what you should face, and you always have to be tough when you encounter danger, otherwise what kind of soldier should you be?

Now that you have come forward, you will never back down!

Zhao Yao's heart was horizontal and he stepped forward......

However, the development of the matter has obviously improved, and these black insects feel the low temperature, as if they are very disgusted, and they don't even have the slightest desire to stop, and they have stayed away from this iceman.

Seeing this scene, Yu Yifeng was immediately overjoyed and shouted loudly: "Have you seen it? They are afraid of low temperatures! Everyone brings their own stuff and lowers the temperature on the surface of the power armor with water and liquid nitrogen! ”

"Let's go now!"

"And ...... Bring all the incendiary bombs and fuel with you! ”

The unknown is always the most terrifying, and fear often comes from the imagination of human beings themselves. Humans always fantasize about strange things to intimidate themselves.

However, when everything is justified, this horror is completely gone.

This large group of black insects is the product of natural evolution, not a nonsensical alien, nor a legendary zerg......

When people saw the scene of Zhao Yao intact in the insect swarm, the panic in their hearts slowly calmed down.

They tried to step out of the door, but they were relieved to find that there were no insects to bite.

Yu Yifeng frowned, and estimated in his mind that even if he saved, the frozen gas in people's hands would only be enough to sustain everyone for about four to six hours, which was shorter than the time of a nuclear explosion.

In other words, preferably within four hours, people must find an exit and escape from this hole!

"Keep up, keep up!"

Before setting off, they also drove the engines of the three tracked trucks to the maximum, but all of a sudden, a large number of bugs began to swell wildly.

Then another Molotov cocktail was dropped, and the three dead were laid to rest forever......

There was no way, there was no way for the current human team to bring them to the surface.

While the swarm was rolling wildly, hundreds of frozen people took the opportunity to rush out. Yu Yifeng walked at the front of the team, and Zhao Yao and several other high-ranking soldiers walked at the back to maintain order in the team.

In the middle of the team were soldiers carrying stretchers, and several patients who had broken their legs and had been injected with broad-spectrum immune reagents had lost their mobility and had to be carried away.

Because of the power armor, this is not heavy work.

As for how to go and which direction......

First, rely on the compass to find the right general direction. Second, geologists will draw maps as they go. They carry professional work computers and can draw their paths completely with their personal professionalism! Third...... Of course, it depends on Yi Feng's intuition.

In fact, although they managed to escape for the time being, people's morale was still relatively low, and the death of three brothers was still the kind that usually worked together and did not look up and see each other, and no one could be happy.

But now that the crisis has not passed, people have no time to think of anything else, and the underground caves are full of strange landscapes, which has washed away people's sadness to a certain extent.

The diversity of life in the underground of the planet Nix is completely beyond people's imagination!

Not to mention all kinds of strange insects, there are also large and small animals, the smallest is only the size of a human fist, and the largest is comparable to a monkey!

Most of these creatures are found in groups, and they generally have scales that resist acid. With the aesthetic appearance of human beings, it is really ugly, and they are all hideous and abnormal, as if they are abnormal underground.

Affected by the insect infestation, they burrow out of their burrows and prey on a large number of animals.

It's incredible that this kind of bug, which can easily corrode human helms, is the bottom of the food chain in the cave!

There's even a bunch of small rat-like predators that have been confronting the human team for a while!

But when they threw a few blocks of ice to make them feel the cold, they immediately left.

Heat energy is the most precious thing in the crypt!

No creature wants to stumble to these strange-looking, cold-covered steel.

"The surface temperature has reached 11 degrees Celsius, and it could be even higher if it goes any further, and it is completely capable of supporting large life, which is a miracle! A miracle created by geothermal energy. A biologist had to sigh.

However, at this time, no one has time to capture biological specimens, because after a two-hour delay, people are speeding up to find the exit of the cave as soon as possible.

Yu Yifeng also explicitly forbade people to shoot at will and kill the creatures here.

This is because firing a gun will inevitably generate heat, which may trigger an attack by other creatures.

More is better than less, the capture of biological specimens can only be talked about later, the most important thing now is to escape from the burrow, before the nuclear bomb explodes!