This set of armor is the most rudimentary, the self-inspection function is too simple, and there is no automatic repair function, and now Chen Mulin doesn't know what is wrong with the armor.

Fortunately, the signal here is very strong, and it can still be connected to the base.

Chen Mulin decisively connected and communicated with the supercomputer and sent the data of the battle armor to the past.

"Xuannu, my flight system is out of order, help me see if it can be repaired?"

After a few moments, the Xuannu replied to the message.

[Xuannu: "The data shows that the engine is overloaded, and the damage to the engine is permanent and cannot be repaired, so it can only be replaced!"]

"I'm going to go, so unlucky?"

This is estimated to be a jump from a height, the speed is too high, and the overload and heating caused by the instantaneous activation of the flight system have been damaged in the first time, resulting in the second malfunction.

This is also something that cannot be helped, the level of the warframe is too low, of course, the level of the engine will not be too high, and there will be some problems of this or that.

It's just that this problem is too bad to appear, it's going to be a dead man!

The passage is straight and 4,500 meters long.

You can't fly, it takes a long time to climb up like that, and although you have the help of a Warframe, you can't change much.

After all, the diameter of this passage is about three meters, every time you climb up a little, you need to dig a pit, which is very time-consuming, it is difficult to ensure that there will be problems with the armor under high-intensity operation, if you don't climb high, it's okay, at most it hurts to fall down, and it is estimated that you will fall to death if you climb high.

Chen Mulin still didn't give up, and asked again: "It really can't be repaired?"

[Xuannu: "It's not that it can't be repaired, although this damage is permanent, but a simple repair will not affect the flight in a short time, but you are not in the base, and there is no equipment to use, so you can only wait for the engine to recover slowly!"

"Can it be automatically restored?"

Chen Mulin frowned when he heard this, and hurriedly asked, "How much time will it take to recover?"

[Xuannu:" Some parts of the engine are made of a kind of memory metal, although it cannot automatically repair the damage, but if the damage is small, it can be restored, but the recovery time is not guaranteed, it may be restored when the engine cools down, it may take several days, but it will not exceed a month. ”】

White was happy.

Feelings, this depends on luck!

The more time now, the more you need to be calm, Chen Mulin didn't care about the opposition of the sailors, and directly switched the live broadcast camera back to the farm to let them count the rice, and squatted in the corner to draw circles.

After a while, Chen Mulin stood up and tried, but still failed to activate the flight system.

"No, you can't just sit still!"

"It's okay if you're lucky, if you're unlucky, it's not a way to spend it here, you have to think of a way!"

Suddenly, Chen Mulin set his eyes on the drone not far away.

There are countless passages in the cave here, and those cockroaches don't go out through the passage overhead, there must be other exits!

I don't dare to explore it easily, but there are drones!

It's better to have the drones fly one aisle each through until they find an exit, and they don't know when the engines will recover, rather than just waiting.

As soon as he said it, Chen Mulin entered a command, and eight drones took off and flew towards the passages where cockroaches came in.

Just pay attention to the eight split screens and watch the drone keep moving forward.

On the way, the drone passed through many forks, but none of the forks were inclined upward, so Chen Mulin had to try his luck and choose randomly.

I don't know how long it took, but the farthest drone was already nearly a kilometer away from here, and the nearest was eight hundred meters away, and it was still a diameter, but it didn't find the passage up.

This is a very unfriendly news, judging by the speed at which the cockroach returns, it will definitely not be so far, which means that it has flown the wrong way.

There is also the possibility that the shock wave from the explosion will cause all the passages leading to it to collapse.

It is also very possible that the footage transmitted from the drone does have collapsed places, and there are more than one place, many places have been found.

Suddenly, the drone's footage was cut off without any warning.

I don't see any problems, judging from the data, the drone is still flying normally, it seems that only the camera is malfunctioning.

If it's just one drone's camera malfunctioning, that's a good explanation, but at the same time it's a problem.

But it's far-fetched to say that the fault is wrong, how to say it, the picture does not have the black and white stripes after the signal is interrupted, nor is it pitch black, but the green is very weird, like the slime of cockroaches.

Fortunately, this does not affect the continued progress of the drone, they have an automatic flight system, and they will not crash because Chen Mulin can't see the road clearly, as long as there is a road, they can continue to move forward.

And Chen Mulin, because he can't see the picture, can only use the equipment on the drone to simulate a passage out.

Compared with the captured picture, this simulated channel is more accurate, and will not miss some important intersections due to a moment of negligence, especially which type of dead end will be simulated.

Gradually, an hour passed.

Still unable to find a passage to the surface, Chen Mulin sat slumped on the ground, his face dead.

"It's over this time!"

"This damn cockroach is really good at digging holes, and everything they dig has collapsed!"

Simply, Chen Mulin no longer looks at the data transmitted by the drone, and he has no hope.

The underground space is so large, although there may be a passage to the ground from other locations, but what is the use of finding it? It is so far away from the base, there is no ability to fly, there is no car, and before it can return to the base, it will starve to death, and drinking water is also a problem.

Now Chen Mulin has no food on his body, only two liters of water, which will not last long.

But there is no other choice, except to wait here for the engine to recover, there is no other choice for the time being.

In this way, Chen Mulin spent the night here until he woke up the next day.

At this moment, the drone has flown a long distance.

Just staring at the eight split-screen analog channels, Chen Mulin suddenly remembered something.

For so long, what he wanted most was to learn about the underground world, and although he couldn't get out now, it was a good opportunity, and he wouldn't necessarily die here.

Chen Mulin started to operate, he needed to integrate all the drone data, and then use the existing simulated channel, plus scanning, to get the drone and the underground structure map in the range here, and it is also 3D.

Soon, a huge 3D map appeared, and although it was only a small area of underground space, it was enough to stun people.

"Oh my God, it's just another world!"

As you can see, the entire 3D map is covered with a network of interconnected passages, extending in all directions, and a small space appears at intervals.

If you don't find this place, maybe to outsiders, Mars is a dead planet.

In Chen Mulin's view, this is a new world full of incredible.