The earth has no active population for nearly a thousand years, but the environment that has been broken off the biological chain will repair itself for tens of thousands of years.

The regulator has a mandatory environmental improvement directive, but maintaining the nutrition, communication, muscle maintenance and other expenditures of 20 billion humans requires a huge amount of materials and energy, and the maintenance of the regulator and the dormant area itself also requires resources, most of these resources are recovered by the original human world, but energy alone is the most difficult to deal with.

Hydropower, wind power, in the face of the figure of 20 billion seems powerless, even regulators can not concentrate the global feng shui energy into three dormant areas, not to mention the global energy grid just to maintain a large number of machinery, manufacturing that order of magnitude of machinery will make the environment worse.

Thermal power is an energy source that is directly excluded by mandatory orders and is not considered.

Solar energy, a representative of low maintenance, but unfortunately the mess left by the great migration wave is not even powerful to the atmosphere, cloudy is the main manifestation, and the solar energy that does not bask in the sun relies on diffuse reflection light......

In order to ensure the self-healing progress of the environment and complete the mission of protecting 20 billion human beings, as early as hundreds of years ago, Snow began to use the hard labor of the "NPCs" in the second world in the egg in exchange for fuel for the lunar base as a beneficial supplement. However, the basic personnel have limited help to the other three settlements through the Second World, and can only maintain a basic balance, and it is only possible to support additional polluting treatment plants if the Awakened are willing to donate fuel.

The additional contamination plant means productivity outside of the norm, which equates to a comprehensive guarantee for hardware upgrades, maintenance, and even proactive help in restoring the surrounding environment of the dormant area.

So it's normal for Snow to thank Sun for donating a lot of fuel in the last era, after all, between the two, on this earth where there are no other regulators, she is still more like a human - except that there is no entity.

While in the hovercar, although the snow and the sun occasionally talk, most of his attention is outside the window.

Although it is monotonous and lifeless, this is the earth, it is real, not a world made of numbers! In his eyes, such an earth is only a little bad.

The hovering car quickly descended on the edge of the city, and beyond that, there was no external environment to support the operation of the hovering equipment, and the place he had to see was still hundreds of kilometers away.

Then, a new vehicle appeared.

Bicycle!

…… That's right, it's a two-wheeled human tool in ancient times.

The vast majority of awakened people see the boring gray city and directly strengthen the hearts of immigrants, and they have no intention of looking at the more dilapidated environment outside the city, while the robots that deal with the environment and maintenance have their own wheels or tracks. Vehicles that are not used at all will naturally be excluded from the list of repairs and upgrades, and bicycles, which can be put together temporarily, have become the only option now.

Of course, he can also choose to pay for the moon base to build a car and throw it away, but a person who can only leave the "egg" for a few days for more than ten years will spend a huge amount of money on alien shopping...... At least he hasn't lost to that extent. Again...... It was useless for him to be willing to buy it, because apart from the connection between the three dormant cities, there was no more pavement in the whole world, and all the artificial ruins had long been naturally recycled in a state of disrepair.

It should be mentioned that even with the bicycle, he still did not get rid of the snow, and the next thing he was accompanied by a supervision robot.

The supervision robot is a ball, with several pairs of transparent wings on both sides near the top, which can fly for a long time, and is generally used to inspect areas and equipment that are not accessible to ordinary robots.

"Do you like to change around?"

At first, it was graphic projection, then it was projection of on-board equipment, and now there is no projection at all, light and sound.

"Fixed entities are inconvenient to move and cannot be used in case of emergencies." Outside, Xue not only answered questions that she didn't respond to, but her tone was not so serious.

Lieyang felt that Snow and the other Regulators were already intelligent beings, but he never thought that the Regulators would bring their lives closer to humans, which was also evident in the choice of entities.

Before setting off, he put the ball on the iron rack in front of the bicycle and equipped himself with the costume that he put together with the bicycle.

The costume is almost the same as a spacesuit in the Second World, and the bloat is better than the antique type, but it is not a close fit.

After the boat, he touched it casually, and the idea of his captain's uniform came out of nowhere, obviously the color, fit, and style were completely different, and there was even a full-face helmet.

Habitually made a movement on the side of the leg, the hand was raised, it was a plastic gun!

"How many meters can you hit?" He didn't use a gun when he went out last time, he was an "old monster" at the time, equipped with a sword and a crossbow.

"Thirty meters."

Thirty meters, which seems to be very short, is actually enough, he is not going to hunt, and most of the hostility areas are within ten meters, if there is a premeditation, the information gathering ability of the regulator is not soy sauce.

Then he hung a few kilograms of supplies on the back of the car, got into the car, pedaled a few times, and walked crookedly for more than ten meters, gradually getting better, and gradually increasing his speed.

Located in the subtropics with no history of earthquakes, the Hibernation City is surrounded by a large lake, and the direction of cycling is to the large lake, and the saline land divides the grass and low shrubs into small patches, and occasionally wooded dirt bags block the way, and the whole journey is about 130 kilometers. Speaking of trees, due to the lack of light, the remaining varieties are still mainly green, but it is normal for a tree to be colorful, and some of them are starting to form a symbiotic relationship with fungi for additional nutrients.

The road conditions were not too bad due to the lack of dense vegetation, but the scorching sun who had just come out of the dormancy pod was in poor physical condition and needed a lot of rest, and it took a full seven hours to move more than 100 kilometers to arrive, relying on toothpaste-like food and water brought out from the city to sustain it halfway.

Seeing that he was about to reach his destination, he spoke first.

"Aren't you going to give a briefing first?"

The spherical surveillance robot, which had been silent, quickly responded in a snowy voice: "The situation may be worse than you imagined, and you won't be in such a good mood on the road if you say it in advance." ”

Hearing such a response, Lieyang stopped making a sound, and was obviously not in such a happy mood.

Ten kilometers away from his destination, he began to take one last break under the warning of the supervising robot, and by the way, he took out a green needle from the supply and injected himself.

"Muscle Energizing Agent", a very strange name, but it is specially prepared for groups of people who have been dormant for a long time or space operations, it will stimulate the body's ability, and the body will reach a high level of physical fitness within half an hour, and the effectiveness will slowly fade after a few hours, and if you can supplement high-quality sleep during this time, there will be a very significant gap between the physical fitness after waking up and before the injection.

This injection requires a lot of nutrients, and the long-dormant body has a low absorption efficiency even if it is toothpaste-like food, so it is necessary to take nutrition injections to cooperate with it! The nutrition injection is not an injection, it is something similar to an intravenous bottle, the medicine bag is fixed on the chest of the clothes, and the automatic equipment inside the clothes is used for injection.

After resting for half an hour at the edge of the meadow, he found a nest of still alive and moist ants, carrying what looked like grain grains into the nest.

Before the last leg of the journey, the supervision robot flies, and when he starts riding, the supervision robot keeps flying five or six meters above his head.

As you get closer to your destination, the vegetation becomes denser and denser, and you can even see small animals shuttling through the vegetation, which is completely different from the previous scenery of 100 kilometers or so, and looks like a paradise outside the world. The only place where bicycles can pass here is by the creek, otherwise you can only take the animal trail.

Ride a few kilometers along the creek, and get off the bike at the signal of the flight maneuver of the supervising robot.

Then the scene in front of me was quite ancient, a stone leaning against a bag of dirt was lifted up for no reason, and a gentle slope descended from below!

There was no light inside, but Lieyang, who was in the know, knew that the safety inside this institution was the same as in the dormant city, so he went in before the supervision robot descended.

Speaking of this mechanism, the safest thing about it is that there is no external switch, and the internal equipment can only be opened remotely through a robot authorized by the regulator, and the hydraulic system is used to lift more than 30 tons of stone and camouflage topsoil.

With the low-light observation capabilities of a full-face helmet, the bicycle is pushed and attached to the spherical supervision robot down a gentle black slope and faces an underground facility.

This is the general control base of the "Paradise Zone".

The "Paradise Zone" is not an official name like the Dormant Zone, but its function is to "stock" humans, or "warriors" in the mouth of the sun.

…… Yes, humans outside of the dormant zone are here, it is the living area of a group of "NPCs" who united to demand human rights earlier, when the restoration of this biosphere with an area of more than 20,000 square kilometers was remade at great cost.