(The second volume has been revised. It is expected to end after May Day and will resume normal updates after May Day.)

There are long floating bridges and long metal tunnels. Automatic doors with strong technological style are sporadically distributed on both sides of the tunnel.

The size of each automatic door is far greater than the normal size commonly seen in the Four-Leaf Star. The width is at least six meters, and the height is even exaggerated. The highest one is even more than ten meters. However, when they open and close, the sound is very small, and even the sound of metal friction is rarely heard.

The environment in the tunnel is very clean. Although it is not considered light to be visible, there is no obvious dust. Flower pots with flowers and green plants are placed on both sides. Under the sunlight above the head, the plants grow very healthy.

"Moisturized and delicate, with sufficient nutrients." The female leopard pinched a pinch of soil, put it under her nose and smelled it, and said with certainty, "These plants seem to have been well taken care of."

"Well, the children are very happy." The fingers gently stroked the leaves, and the rose's face was filled with rare tenderness. The leaves of the plants were rolled up and wrapped with white fingers, just like a baby holding the mother's fingers. "It's hard to imagine that there are plants with such vigorous vitality in the wasteland world. I thought that after experiencing the nuclear war, even the plants lost hope."

"Underground bunker...I x, what's the matter."

A giant metal door on the right opened quickly, and two strange birds walked out in square steps. Their strong legs, thick necks, flesh-like bodies, and short wings were like walking normally, as if they were performing a funny comedy.

The two birds and the female rose leopard met head-on. At the fuss of the female leopard, the two birds rattled a few times, turned their heads to the side disdainfully, swayed and turned away. Then they turned into the corridor, disappeared at the corner in the distance, and threw the female leopard with its middle finger up far behind.

"x, what are you so arrogant? Find an opportunity to stew you all."

The big cat, who was furious, scratched his head embarrassedly, waved his fists at their backs amid the low smile of roses, but still couldn't control the curiosity of the cats, and leaned his head and looked into the door that had not yet been closed.

The very special environment is simply an indoor stadium. The area of ​​the stadium is large, equivalent to the size of two side-by-side football fields. The center of the stadium is empty, with a stadium and a runway. Several unknown creatures on the stadium are jogging under the supervision of two mechanical bodies. More than a dozen mutated kangaroos in the stadium were chasing a ball and having fun.

At the edge of the stadium, various fitness equipment are arranged. These equipment are strange in appearance and are not suitable for human use, but some specific species are just right when standing on it, just like a mutant hunter dragon playing on a climbing rack. The short forelimbs and thick hind legs make it jump up and down on the rack, which seems to be crumbling, but is actually as stable as a rock.

"Ha? Is morality, intelligence and physical fitness comprehensively developed? x, that's my coin."

A coin popped up to the nearest supervisory mechanical body. Although it was just a random shot, the coin wrapped in source energy was like a bullet breaking through the air, roaring and hitting the robot's body and knocking it to the ground. The female leopard was about to laugh at him when she saw the mechanical body skillfully sucking the coin into her body. It seemed that she had no intention of returning it to her.

"Please don't interfere with the normal work of my branch thread." A light screen suddenly unfolded on the wall of the tunnel, and the master's holographic projection appeared on the screen. "Please don't touch the experimental subject too much to avoid adverse effects on the experiment."

"You should tell that person this request." Rose grabbed the female leopard's ear and pulled her away from the stadium door. "It's been a few hours, I think it's enough for him to cheat you out of your experiment."

"Not yet, it's still within acceptable limits."

"I hope so." Rose shrugged, "Is it still ahead?"

"Well, the end is."

Crossing the stadium and continuing along the tunnel, more and more animals are coming and going along the way. Although these animals have never used human language, they can be seen from their actions that they all have certain wisdom and are not sure how tall they are, but at least not less than five or six years old human children. There are animals that eat carnivorous and plant-eating. According to different races, some are in groups, and some are alone, but overall they get along well. Some are obviously juvenile animals even gather together across races to play, which is completely contrary to the nature of the species.

There are more and more animals, and there are more and more rooms or areas. You can see from the doors that occasionally open. Most of the doors are simulated natural environments. Although the outer wall of the area is metal, the ground is covered with thick soil. Various plants grow in the soil, from trees to moss. In the simulated nature, there are a large number of nests of different creatures, on the ground, underground, open, and in the corners. Due to the environment, the nests are built very densely, but they are barely kept safe and secure, just a little crowded.

"What kind of experiment is it doing?" The female leopard wanted to grab the ear of a passing rabbit, but she was glaring at Rose with her eyes and gave up her thoughts. She sniffed at Rose while pouting, "You can't see the meaning at all, well, that stupid bird should be able to see a little."

"Swish, stupid cats can even use tricks to trick them." Rose's parasol hit the female leopard's head and said in her silly smile, "The experiment is nothing more than artificially improving the intelligence of species for observation. As for the purpose... it's hard to say now, but it has little to do with us for the time being. I'll catch that guy first."

At the end of the tunnel, there were three airtight doors that were continuously crossed. The airtight door was not closed, but was just a false cover. When the first airtight door was pushed open, the corners of the female leopard's mouth trembled and muttered a few dirty words in a low voice.

The four walls of the passage behind the door are as smooth as mirrors, and even the walls are glass. Through the thick transparent bulletproof glass, you can see that there are many light emitters distributed behind them, paired in pairs, and they can move freely behind the bulletproof glass. There are no weapons in the passage, which seems very safe, but those light emitters do not look like they are just decorations.

"At least it will not cause a fatal threat to us." The twenty-meter-long passage jumped over in two steps. The female leopard, who was discomfort, pushed open the second airtight door as quickly as possible, "Rose, wait first, wait until I go over."

The passage behind the second door is much more normal, but there are many vents and water jets at the top and bottom. These jets are dense enough to cover the entire tunnel. The problem is to carefully distinguish the smell from the vents and water jets. The female leopard shook her head and stopped a cat's fantasy of bathing in poison gas and sulfuric acid.

"Bang", a vine passed by her side and opened the last airtight door first. The female leopard slid along the vine as if she was ready. It didn't work for a second and appeared opposite the airtight door.

Then she saw the crow.

This is not an artificial space like an underground bunker, but a real cave. The cave is very large and looks like it has existed since ancient times because its walls are covered with strange murals. These murals are quite ancient, with rough human figures and strange symbols, which are probably masterpieces of primitive humans in the wasteland world tens of thousands or even hundreds of thousands of years ago.

In addition, traces left by ancient times can be seen everywhere in the cave. The piles of radiation stones that have condensed into one, sunken stone pits and stone pestles, scattered with stone tools and wreckage everywhere, and... a large group of mutant animals' juvenile bodies.

The animals were rolling into a ball, and crows were among them. Yes, the crow was holding two young lambs, a fluffy koala on its head, and a kangaroo hung on its legs. While smiling happily, rolling around among the animal's juvenile bodies, happily like a child.

The little doll that never leaves the crow is floating in the air with her hands on her back, facing the murals on the cave walls, looking at it with a selfless look. It was not until the sound of opening the door that it rushed back to the crow as quickly as possible and climbed onto his shoulders.
Chapter completed!