merit book

Rong Yuan's reaction was extremely quick, he immediately grabbed the edge of the hole, and only let go and jumped down after seeing the environment under his feet clearly.As soon as the hole above the head opened and closed, Rong Yuan's eyes were suddenly pitch black.He turned on the night vision and scanning functions on the helmet of his space suit, and waited quietly for a while, but nothing changed around him. It seemed that no second life form had discovered his visit in this hidden underground building.

The place where he was standing was about four or five meters deep from the hole above his head, surrounded by rocks and soil, and some ore crystals could be seen from time to time. It seemed to be just an ordinary underground tunnel, and there was not even a trace of artificial excavation.The ground under his feet was not flat, showing a slope of [-] to [-] degrees, and the scratch on the ground continued to the lower ground.

Rong Yuan raised his left hand, there is a small round button on his wrist, a virtual operating platform will appear when he presses it, he clicks on the operating panel a few times, sets this as the origin, and records the route and relative position, these data will be displayed on the display screen of the helmet glasses.Then he drew his dagger, slowed down, and followed the scratch to go deeper into the tunnel.In this world, he couldn't hear other sounds except his own breathing, and he seemed to lose his sense of direction and distance as he walked in the darkness.He felt like he had walked a long time, but looking at the display, he had only traveled less than a kilometer.

Suddenly something moved on the screen, Rong Yuan looked intently, there was a strange bug lying on the rock wall, at first glance it seemed to be no different from a broken egg, flat, palm-sized, very long in shape Random, but its surface is much smoother than gravel, which makes Rong Yuan see the clue.

After a while, the worm seemed to sense that Rong Yuan had spotted it, or maybe it just got tired and wanted to change its position. Two mushroom-like sticks popped up from its smooth back and turned left and right. Turn, as if it were its eyes or antennae.I couldn't see if there were legs wriggling under its body, but the bug crawled away as quickly as if it was floating on the water.

Scientists on Earth have always believed that there are no life forms on the moon because of the harsh environment. Even if there are, they should be microorganisms or bacteria.What Rong Yuan saw in front of his eyes undoubtedly subverted the earth people's perception of the moon.If he brought the worm back, this creature that can survive in a vacuum, without liquid water, and in an environment with a huge temperature difference between day and night must be a discovery of the first century.However, although he was very curious, he didn't have the inquisitive mind of some scientists who probe into everything. He didn't want to catch it for dissection and study, and he didn't want to use it to become famous, so the bug smoothly disappeared from Rong Rongyuan's eyes.

Rong Yuan continued to move forward, his heartbeat speeding up slightly.Since the environment of the moon can breed the bug just now, will there be more advanced intelligent creatures?

If this assumption is true, it would be very dangerous for Rong Yuan, an uninvited guest, but no matter the danger, he would rather encounter something different than a dark tunnel .

He had been walking for five or six hours, and when the vertical distance from the surface of the moon was about ten kilometers away, the scenery in front of him changed suddenly——

The scratch on the ground disappeared.Starting from a certain place, the rough rock wall of the underground tunnel that seemed to be naturally formed suddenly became smooth as a mirror, square and square, and the ground under the feet was flat and hard, not even dusty.I can't see the color of the floor through the night vision device, but I can see that it has some criss-cross patterns, the patterns are complex and abstract, and it seems to be some kind of flowers with branches.

——In addition to humans, what other creatures can build such underground structures?

After walking on this channel for only five or six minutes, the scenery in front of me changed again: a layer of smooth and soft but opaque material like soap bubble film completely covered the front of the channel, this layer of material was not smooth, and It protrudes slightly toward Rong Yuan.He turned the dagger upside down and poked it, and the film was immediately dented a little, showing good elasticity.With another push, the handle pierced through, including Rong Yuan's half of the palm, without feeling any hindrance.

Rong Yuan hastily withdrew his hand and looked carefully, there was nothing serious.Let pea scan it again, and no problems are found.

Pea also scanned the film blocking the road in front of him, and found that it had both biological and synthetic properties. It was hard to say what it was, but it was harmless to the human body.Rong Yuan was dubious, and lightly poked a finger in, it felt like passing through a layer of jelly, and then poking into the air.

What's on the other side of the film?

Rong Yuan regained his composure, walked in through the film, and then widened his eyes, showing a shocked expression.

—what did he see?

Rong Yuan always thought that this was a scene that only existed in fantasy.

That layer of film is not a barrier to the entrance of the passage, it is a huge protective film.It is so big, as far as the eye can see, it seems to have hollowed out the entire moon and turned the inside into such a "soap bubble".Inside the soap bubble is an unimaginably magnificent underground city.Standing on a small platform in the corner of this underground city, Rong Yuan felt that he was so small compared to this city.

"Rongyuan, after testing, the air quality here is excellent, the oxygen content is 13.00% higher than that of City A, and the harmful gas content is [-]% of that of City A. It is an environment suitable for human survival and activities." pea road.

Hearing this, Rong Yuan took off the helmet on his space suit, and a gust of slightly humid air immediately entered his spleen and lungs. The air here is much fresher than that on Earth, which is very comfortable.But Rong Yuan ignored these things, he looked at this underground city without blinking, his heart was full of shock and admiration.

The center of this underground city is a light blue hexahedral crystal stone.This crystal stone is very large, Rong Rong is so far away from it, it feels as big as a mountain range from a distance.

This crystal stone is not only the core of the underground city, but also the light source here.It exudes a soft and desolate light, illuminating this underground city as bright as day.There are no streetlights common on Earth to adorn the city, because it doesn't need it.In places where crystal stones cannot be illuminated, it is sufficient to install some reflectors on nearby walls.

The top of the crystal stone is fixed with metal, and then six long metal rods extend from it, reaching the edge of the soap bubble film.Some small metal brackets split off from the metal struts in the middle, and more splits near the edge. In the end, there are such metal frames densely packed, like branches split from a big tree, supporting the membrane wall. .

Most buildings are on the outermost brackets.From Rong Yuan's point of view, these buildings are very strange, perhaps because there is a frame first and then a building. In order to accommodate the position and shape of the metal frame, this building has to twist itself into a strange shape.Some are condensed into twists, some are like an inverted U shape, and some are tilted seventy or eighty degrees; some are as thin as a girl's arm at the bottom, but the top is getting bigger and bigger, like a round Big fat balls; there are also buildings that are sometimes recessed and sometimes protruding, just like children's random building blocks.The number of floors of these buildings is also very different. There are many single wooden courtyards, like an inconspicuous bird's nest; On a large support, and then go around half a circle and connect to another support, the densely packed small windows on it are like a honeycomb.

It is difficult for Rong Yuan to appreciate the architectural style here, but it can be seen that the owner of each strange-looking building is very proud, not only to install exaggerated decorations on his house-such as hundreds of colors flashing together Neon lights or something, and words that may be titles or shop signs are written on big signs for everyone to see.

There are large and small bridges connecting different bracket building groups, and sometimes some winding bridges are built between buildings. It feels that the construction is very random, and there is no plan.Presumably, if people here want to travel, if they want to go east, they may be turned to the west if they walk along the bridge.

There are also some plants here.Most of them are small moss plants, covering the roads, walls and all the decorations like carpets, only the crystal stone in the middle is not touched by them.There are some vines or flowers, but no trees.The bracket on the inner side is probably the botanical garden here. Rows of square platforms are fixed on the bracket, and various plants as tall as a person are planted on it.Perhaps because of the lack of sunlight, the plants here are rarely green, mostly white or transparent, and only a few of them have light colors.

Some mechanical creations that looked like stones or birds slid quietly on the road or walls.Rong Yuan watched for a while, only to realize that they were cleaning.It's just that the walls and pavement are already very clean, and this kind of cleaning seems to be doing nothing but useless work.Rong Yuan thought of the road outside the film that was not even covered with dust, it must be the result of their labor.As for the "stone" that led him over, it had already been sent somewhere by a conveyor belt.

This is a city so peculiar that it seems to exist only in fantasy, it is so clean, fantastic, and so... dead silent.

There are no sounds, no animals, no humans.

The only thing left is... corpses.