The interior of the Moon, like the Earth, also has a layered structure, from the center to the surface of the moon, the Moon can be divided into three circles: the core, the mantle and the crust.

The combined thickness of the lunar crust and the lunar mantle is about 1,000 kilometers, and the location where Nie Yun is now is the junction of the lunar mantle and the lunar core!

And these black stone pillars are equivalent to stretching out the lunar core and mantle layer of the moon to form this underground world.

Nie Yun guessed that perhaps at the beginning of the formation of the moon, a unique cosmic environment that could form energy crystals appeared in this location, and then it was discovered by a certain cosmic civilization, and the energy crystals were mined by large-scale mining.

And the rest is nothing more than slag......

Thinking about it this way, Nie Yun felt a little unbalanced in his heart, it was equivalent to you originally having a piece of shit at the door of your house, but you hadn't gone out yet, but you were trampled on by a passing passerby!

If it weren't for this hateful passerby, the lucky one would have been his own!

Oh my energy crystal! My heart hurts......

Wait a minute! But it's a little wrong, with such a huge mining area, why did no one show up after I was bouncing on top of people's heads for so long?

When planting mushrooms, it is equivalent to beating gongs and drums and setting off firecrackers in front of people's homes every day, can aliens endure it so much?

A year beast, frightened?

Looking at the traces here, it seems to be ...... It's a long time ago, it doesn't look like someone has been active recently, could it be that it has been completely mined and evacuated?

Nie Yun didn't find any other abnormalities around, so he followed the already vague traces on the ground and prepared to find out the other party's mining base.

The empty terrain and the ideal drag racing environment without resistance made Nie Yun quickly soar the 11th Road to more than 600km/h, and the dragonfly turned into an afterimage flying over this land, and the speed is still increasing!

An hour later, the shadow of a huge base finally appeared in front of Nie Yun's eyes.

"......Boom" Nie Yun's feet ploughed out two deep ravines in the ground, stretching out for several kilometers, before he could stop more than ten kilometers in front of this ruin, leaving behind him a belt of earth, stone and dust that could not settle for a long time.

What appeared in front of Nie Yun's eyes was the ruins of a huge mining base, yes, the ruins!

It was a dilapidated and desolate scene that definitely didn't look like it was still in operation.

Nie Yun's pupils constricted, and he narrowed his gaze to observe the inside of the ruins, only to see that in addition to some semicircular functional buildings, this base was a row of strange machines nearly a hundred meters high in the open space, and in the center was a semicircular deep pit.

Seeing that he didn't find any signs of danger, Nie Yun jumped into this base in a few jumps.

There were no walls or gates built here, it was transparent on all sides, and there were no obvious defenses in these complexes, and it was clear that the owners of the ruins did not do much in such a safe underground depth.

Although it seems to have been abandoned for a long time, and some buildings and machinery have partially collapsed, making it look very dilapidated, the main body of the base still retains some integrity.

Nie Yun came to those huge machines that were very conspicuous first.

This is a very bloated-looking six-legged construction machine, a bit like a mechanical ant, with two drill arms, it looks like it should be an engineering robot for digging and mining, and the bloated size should be a specially designed storage space for carrying mined minerals.

"Bang bang!" Nie Yun tried to lightly tap one of the mechanical feet of the mining ant in front of him.

"Kala!" A crisp sound similar to the cracking of glass came, and a crack appeared directly in the mechanical foot that was struck, and then the crack spread rapidly.

"Click!" "Click!" "Boom!"

In Nie Yun's stunned gaze, this mechanical ant first broke one mechanical foot, and then the remaining mechanical foot shattered one after another like a chain reaction, and finally the entire mechanical ant tilted and collapsed, turning into a pile of dust and parts in front of Nie Yun.

"Uh......" Nie Yun was dumbfounded, how long would it take for the aliens' steel materials to age like this? You must know that this is a vacuum environment, and if you count your fingers, it must be at least tens of thousands or even hundreds of thousands of years, right?

Tens of thousands of years ago, human beings were still playing in caves to drill wood for fire, right? These aliens have the patience to observe humanity for 10,000 years?

His confusion intensified, and he ignored the machinery and turned into the semicircular buildings in search of clues.

"Warehouse...... Empty! Well, to be expected. It can be seen that this group of aliens is greedy!

Is this an energy pipeline? I didn't even have a generator left! Hum! It's really a little family!

Over here...... It seems to be a robotic automated production line that has been demolished to the core, how can it be ants again, are you ant stars? What kind of hobby is this......" Nie Yun complained while looking for it, and his tone was full of the sour taste of not being able to eat grapes.

As a result, there was no trace of alien life, but it confirmed that the other party had an extraordinary love for ants.

The robotic automated growth line that was discovered was made of a small ant robot that was only 2 meters tall, and appeared to be a basic unit for construction and maintenance, with some broken robot wreckage inside.

Seeing that there were no other clues, Nie Yun tried to carefully devour a relatively complete ant robot, and after a long time, he opened his eyes and frowned.

There wasn't much information from that robot, and its chip used a completely unfamiliar programming language, and of course it wasn't binary, and Nie Yun couldn't completely decipher it without a large number of data samples.

Just like when Nie Yun first saw those abstract paintings, he could clearly see the colors of each molecule in the painting, but when combined, they were ...... Who knows what the hell he painted?

In addition, a considerable part of the chips inside the robot have been aged and damaged beyond repair, and the fragmented information has brought more trouble to Nie Yun's deciphering work.

So in addition to some empirical values in the tectonics and materials science of the "multi-legged robot", the biggest gain so far is to find the source of the command that controls it.

When he came to the huge semicircular pit in the center of the base, he could see that there were dense lines and pipes in the pit, but it seemed to have been cut off alive, and it was over.

"There was supposed to be a spherical base core here, which is the alien mining vehicle! Was it recycled after mining?

In other words, all that is left behind are aging equipment or cheap tools that have no recycling value?! ”

Feed! You're doing this a bit unorthodox, aren't you? Forget it after eating and wiping it all, before leaving, you have to lick the dishes that you have used to eat, is it Erha!

Nie Yun was simply indignant!