The cave is not very wide, with a volume of only more than 100 cubic kilometers, such a project may be a miracle for the human beings who lived on the earth before, but for Chen Xin, who has been accustomed to seeing incredible civilization creations, such a cave can only be regarded as a small project, and its volume is not even comparable to the large dock in the New Earth.

The cave is a tight square, and the rock walls are shiny black reflective, smooth and recognizable, and it is obvious that special materials have been laid, and Chen Xin's position is located in the middle of one of the rock walls.

The cave contains millions of treasures and ores, neatly bound in the void under the action of gravitational fields.

Some of the materials cast strange fluorescence, and the entire cavern was shrouded in a layer of dreamy colors.

Chen Xin didn't pay attention to these so-called treasures, most of these materials can only be synthesized by fourth-level civilizations, they may be treasures to Pruk, but to Chen Xin, they are very ordinary things, and the steel hammer can synthesize materials with much higher value than these in minutes.

Chen Xin turned his head to Kafra and said, "Kafra, what are you talking about?"

Kafra said respectfully: "Master, please come with me!"

As he spoke, Kafra leaped into the cavern's void, and slowly floated towards the rock wall opposite the cave under the impetus of the spacesuit's power system.

Chen Xin and the robot guarding beside him also floated over.

On the opposite side of the cave, there are also hundreds of secret chambers, the whole of which is made of high-strength alloy, and then inlaid into the rock wall, according to Kafra, these secret rooms are stored inside some special treasures, some are scientific and technological materials, some are special minerals. There are also some high-level civilization technology products.

Kafra took Chen Xin to an inconspicuous secret room, turned his head to Chen Xin and said, "Master, the star map I said is hidden here, but there is no password......

Chen Xin smiled slightly and gestured to a small robot beside him.

The robot stepped forward, just like before. The moment the robot touched the alloy door of the secret room, its body turned into a liquid state and silently melted into the secret room.

In a matter of moments, the door to the chamber had opened on its own.

Kafra couldn't help but swallow, although he had seen such a scene before, he couldn't help but be a little surprised.

He looked at the robot that had changed from liquid metal to solid again, and then walked in after Chen Xin.

The chamber was dark, except for a dark blue sphere suspended in mid-air. The orbs emit strange and mysterious fluorescence that looks extremely remarkable.

Chen Xin stared blankly at the dark blue ball in front of him, and there were only two words in his mind - Star Stone!

……

Inside the "Jiangcheng" spaceship, Chen Xin's body directly summoned the steel hammer from a corner of the spaceship.

"Steel, come to the command center immediately, there is an emergency!"

"Old Bean, what's wrong, what's going on?"

A few seconds later. The figure of the steel hammer slowly appeared in front of Chen Xin.

"Come over here and see what I've found in the Star Thief's treasure vault!

Chen Xin shared his perspective through the holographic projection with Gangyi. Soon, the steel hammer shouted: "Star Stone, old bean, what's the situation, how can there be a star stone here?"

Chen Xin shook his head and said, "I don't know what's going on, wait a minute, I'll ask Kafra first!"

……

Inside the secret room. Chen Xin's holographic projection seemed to be frightened, staring blankly at the dark blue ball suspended in mid-air.

There was a hint of excitement in Kafra's eyes and he said, "Master, this ...... This is the star chart. ”

After a long while, Chen Xin seemed to come back to his senses. He looked at Cavram with an inquiring gaze and said, "Khafra, are you sure this is it?"

Kafra nodded and said: "Master, that's right, this is it, after the Black Pearl ambushed the Cairns civilization fleet, Puruk picked it up when he was cleaning up the battlefield behind us, at first we didn't know what it was, and there was no way to detect its specific materials." It wasn't until we heard a legend in the Dark Market that we realized what it was. ”

Chen Xin was slightly stunned, and wondered: "What legend?"

Kafra said: "It is said that every time the Black Pearl loots a fleet, it will leave a star map on the battlefield to go to the Death Star Field, the Death Star Field opens every two hundred years, and every time there is an expedition team to the Death Star Field to search for treasure, without the guidance of the star map, it is impossible to find the entrance to the Death Star Field." ”

Chen Xin nodded, the reason why the Death Star Field is famous in the Milky Way is not only because this star field is full of white dwarfs and neutron stars, but also because of its own mysterious color.

The Death Field does not appear in a fixed place in the Milky Way, but appears once in a while, usually between 150 and 250 years, and in inconsistent locations, and even more peculiarly, it has many entrances, and it may be thousands of light-years apart.

When the Death Star Domain appears, whether it is the Four Great Spiral Arms, the Silver Heart Silver Plate, or the Chaos Star Field, there is a possibility that the entrance to the Death Star Field will appear.

Therefore, in the past hundreds of thousands of years, there have been many spaceships that have entered the Death Star Domain, but there are very few fleets that can come out of the Death Star Domain, and the only few fleets have come out of the Death Star Domain after obtaining the star map of the Death Star Domain through the Black Pearl in the past 10,000 years.

And what is even more interesting is that all the fleets that come out of the Death Star Domain have obtained countless benefits, including those who have found rare ores, and those who have found advanced civilization technology, and what is even more exaggerated is that more than a thousand years ago, there was also an expedition team with a star map that found a small planetary warship of a sixth-level civilization from the Death Star Domain.

From this, you can imagine how valuable such a star map is!

Chen Xin walked to the side of the star stone, although his body was projected, but under the effect of the force field, it could show a similar effect to the entity.

Chen Xin stretched out his hand and gently held up the star stone and held it in front of him.

The inside of the ball is in the shape of a dark blue starry sky, and if you look closely, you can see a little starlight inside, as if the entire starry sky has been packed into this star stone.

Chen Xin couldn't help frowning, it stands to reason that the star stone is mainly the computing core of the first generation of robots made of steel and hammer, just like Vali and Eva left in the New Earth, they also have star stones in their brains.

Chen Xin didn't expect that the Black Pearl would actually transform it into a device for storing star maps. (To be continued......)