40,000 Years of Cultivation

"A five-digit area!"

Li Yao was slightly surprised. Although he felt from the dull air that he must be very deep below sea level, he did not expect it to be so deep.

Any habitable planet with relatively stable geological conditions that can be used for human reproduction often has a triple structure consisting of a core, a mantle and a crust. Celestials are naturally no exception.

Such a habitable planet is like a huge egg, the core is the yolk, the mantle is the albumen, and the crust, which is thirty to fifty kilometers thick, is a thin layer of "egg shell."

Regardless of the fact that the crust is only a thin layer, it is the main habitat and resource collection area for human beings underground.

In the mantle below the crust, or high-temperature and high-pressure magma, drilling a small hole at will will cause magma to erupt and destroy everything; or a rock layer with a density higher than superalloy steel plate, even the most advanced earth-drilling magic weapon, The psychic energy that consumes astronomical numbers may not be able to drill as deep as possible. In addition, the energy generated by earthquakes is often dozens or hundreds of times higher than the energy released by the most powerful spar bombs of mankind. The squeezing and tearing force that destroys the world can not be resisted by any human strong.

In a nutshell, the mantle is a dead zone that is both dangerous and lacks cost-effectiveness. Even though the tentacles of human civilization have swept thousands of planets in the world, they still only have a taste of the "egg shells" on the surface of these planets. Not yet, it seems unnecessary, deep into the mantle.

On the Celestial Star, the imperial capital of the true human empire, all towns are divided into six levels according to the altitude and the degree of civilization development.

The first level is the cities on the ground with names and surnames, such as the Central Administrative District where the Senate is located, named after the name of the founding emperor, known as the "Black Star City."

There is also the "White Rock Special City", the heavy industry magic weapon refining center where Li Yao and Long Yangjun fought fiercely. In short, as long as you have a name, it is often a large city with highly civilized and developed immortals who dominate the mainstream.

Although underground towns have no names, only numbers, the difference can be seen based on the size and digits of the numbers.

From "0" to "9", there are a total of ten underground cities and towns numbered in single digits. The most important underground battle fortresses and military fortresses of the imperial capital are scattered. There are all kinds of magic weapons, fuels, and training facilities. The defense system is even better than that on the ground. The city is even more severe. When a strong enemy strikes and the ground cannot support it, most of the immortal cultivators can withdraw into the ground and continue to resist.

From the 10th district to the 99th district, these double-digit towns are often the areas where down-and-out cultivators and original human brain workers live, as well as various large public facilities, such as hospitals, schools, and a steady stream of underground. Ventilation base stations that deliver fresh air are often located here.

Dongfang Renxin chose to open his secret research institute in a double-digit town, because only double-digit towns can support the existence of such a large-scale hospital. Wait until the fourth-level underground area from the 100th to the 999th district, that is, The low-level towns where industrial workers and manual workers live among the original people are simply unable to support the existence of large hospitals.

However, the three-digit area where industrial workers and lower-level workers live is not yet the most miserable and barren area.

Under their feet, in underground mines and rock formations more than five kilometers deep, there are four- and five-digit towns. These towns are like forgotten corners, completely abandoned by the upper class of the empire, even There is no value in squeezing and exploitation, let them fend for themselves.

Li Yao was once interested in the four-digit and five-digit areas built at least five kilometers below the ground. He tried to collect materials in this area, but in the end he found only a few words. It is said that the survivors living in the abyss have long been civilized. Degradation, even the basic intelligence is gone, just like a "wolf boy" who was abandoned into the jungle from childhood and raised by wild beasts. It has the appearance of a human, but only the soul of the beast-these are muddled. The existence of ignorant creatures just proves that "real people" and "primitives" are not the same race, and "primitives" are essentially a beast that resembles humans, that's all.

The attitude of the immortal cultivator towards these abandoned people deep in the ground is like the attitude of an elephant towards the ants deep in the muddy soles of their feet, completely treating them as non-existent, and even having no interest in trampling them to death with much effort.

Unexpectedly, Long Yangjun set up her lair in a five-figure underground town. What are the residents "abandoned by civilization" here, and what is Long Yangjun's so-called "conspiracy"?

Li Yao's head started to hurt again. He frowned slightly, crawling out of the medical pool with some effort, wiped his body clean under Li Jialing's service, put on the mustard combat uniform, and put on all the heaven and earth rings to ensure that the crystal armor was always able to The state of activating and recolonizing, then refreshed, and asked: "What kind of place is this... and where did Dongfang Mingyue go?"

"I don't know how to describe it. I have always lived on the ground and on starships. I never knew that there is such a place in the civilized world, and that humans live in... this way."

Li Jialing hesitated for a long time and didn't know what to say. He just said, "Anyway, Brother Yao is sober now. Take your time to see that. That... Sister Dongfang specially asked when he left, that you can go wherever Brother Yao wants to see. Everything is open. It doesn't matter if you want to go to her. In short, everything is free.

"But, don't worry about so much. Brother Yao, are you sure you are really fine? Do you want to take another medical treatment? Sister Dongfang told me the whole picture of the battle. I didn't expect Brother Yao to be so powerful. To such an extent, even Black Star Great Emperor Wu Yingqi can blast away, really...really..."

Li Yao glanced at the rusty and dusty medical magic weapon next to him, shook his head and said: "No need to take pictures, I should be fine, even if I have injuries, I don't care for so many days... What are you staring at my head? "

"Nothing, nothing."

The little lion shook his head like a rattle, and hurriedly said, "I just want to say, Brother Yao, even if you take care of your injuries, you usually have to use your brain, carefully deduct and calculate all the trivial matters, just leave it to me, don’t No matter how worthlessly destroying your brain cells, no matter how talented and outstanding you are, you must pay attention to maintenance!"

Li Yao blinked, staring suspiciously at Li Jialing: "What does this mean?"

"It's boring, just... tell you to pay attention to maintenance!"

Li Jialing held back for a long time, "If you don't pay attention to maintenance, how can you fight Black Star Emperor Wu Yingqi next time?"

"By the way, having said that, I don't know if Dongfang Mingyue told you--"

Li Yao said anxiously, "After the battle ten days ago, we have already determined that your mother turned out to be a few decades ago, not right, it should have been the Black Star Emperor Wu Ying when she was exploring the emperor’s tomb more than 100 years ago. The strange remnant soul is entangled, it has only slowly occurred in the last few decades, so, in her original intention, it must not really want to kill you!

Li Jialing bit his lip with a look of relief and sadness, and said softly: "I know, if possible, I will expel the remnant soul of the Black Star Emperor from the body of His Royal Highness!"

Li Yao shook his head and said: "It's not enough to be expelled, because you are most likely the carrier he carefully prepared for himself. If you escape the queen's body, but rush into your body, the consequences will be even more serious.

"Fortunately, the remnant soul of the Black Star Emperor should have suffered serious injuries in that fight. It is estimated that it can delay his conspiracy for a period of time, giving us a little breathing space, and we can find out what he is going to do. And come up with a cracking method!

"But first of all, let us sort out how many cards we have in our hands-since this is Dongfang Mingyue's lair, is there a refining room with advanced facilities that can repair giant soldiers?"

Li Jialing shook his head quickly: "No, there is only a small refining room here. It is barely able to repair the crystal armor, and there is nothing the giant soldier can do."

"Ok."

Li Yao thinks about it, too, the super refining room that can repair the giants requires not only an extremely large space, but also a stable and continuous supply of powerful psionic energy, as well as various precious resources and the support of an entire technical team. It was indeed not something that Long Yangjun could have in his secret base.

"Then what's in here?"

He asked helplessly.

Li Jialing didn't answer yet, but there was a soft knock on the door outside.

Pushing the door and entering is a young girl in a gray cloak, with a face that has never seen the sun before, almost transparent, and traces of light blue blood vessels are all visible, and her pupils are slightly red, and they instantly gather into two. The red bean, not quite accustomed to the light, did not show the slightest expression on the delicate and porcelain features. First, he bowed slightly to the two of them, and then put a huge tray in front of the two of them, and said: "Please take your time, VIPs. "

Li Jialing said thank you very much. The girl had no other expressions, and she walked out with no expression on her face.

The girl has lived in the ground tens of thousands of meters deep for many years. She has never been to the ground in her life and has been exposed to real sunlight. Her appearance has been slightly different from that of people on the ground and shallow ground.

And the tone is full of a monotonous and ethereal taste, just like the sound of water droplets on stalactites deep underground, dripping on the smooth jade rock, "tick, tick, tick", both nice and weird.

Li Yao thought about the identity of the girl and the habits of the underground humans with great interest-from the fact that the girl can fluently say "please use VIPs", he knew that it was definitely not a "human-shaped beast" talked about by immortals.

Look at the huge metal tray in front of you. It should have been a very flat industrial product, but after thousands of years of use, it was covered with traces of pits and pits, but the edges were polished so bright that it could clearly reflect the light. .

On the metal tray, there is a large bowl of paste that is more viscous than rice porridge, and a fragrant lute-shaped animal leg. See the level of development of a civilization.

The savage races who drink blood can never be proficient in cooking. A civilization that can use dozens of cooking techniques and hundreds of seasonings must be highly developed.