“A five-digit area!”

Li Yao was slightly surprised. Although he could feel from the dull air that he must be deep below the sea level, he did not expect that he would be so outrageously deep.

Any habitable planet with relatively stable geological conditions that allow humans to reproduce often has a triple structure composed of the core, mantle and crust, and the Pole Star is no exception.

Such a habitable planet is like a huge egg, the core of the earth is the egg yolk, the mantle is the egg white, and the crust with a thickness of thirty or fifty kilometers is a thin layer of "egg shell".

Although the earth's crust is just a thin layer, it is the main area for humans to live and collect resources underground.

In the mantle further downwards of the earth's crust, or in high temperature and high pressure magma, drilling a small hole at random will cause the magma to erupt and destroy everything; or in rock formations with higher density than superalloy steel plates, even the most advanced magic weapon for drilling and consuming astronomical spiritual energy may not be able to drill much deeper; in addition, the energy caused by earthquakes is often dozens or hundreds of times higher than the energy released by the most powerful crystal bombs of humans, and the squeezing and tearing force of plate movement that destroys the world is not something that any human strong man can resist.

In a nutshell, the mantle is a dangerous and lacks a cost-effective death zone. Even though the tentacles of human civilization have swept across thousands of planets in the three thousand worlds, they still only taste the "egg shells" on the surface of these planets. There is no such thing as not, and it seems that there is no need to penetrate deep into the mantle.

On the Pole Star, the imperial capital of the Real Human Empire, all towns are divided into six levels according to their altitude and the degree of civilization development.

The first level is a city with names on the ground, such as the Central Government District where the Senate is located, which is named after the founding emperor's name, known as "Black Star City".

There is also the "Baishi Special City", a heavy industrial magic weapon refining center that Li Yao and Long Yangjun once fought fiercely. In short, as long as they have a name, they are often dominated by cultivators and highly civilized and developed megacities.

Although underground towns do not have names and only numbers, the difference can be seen based on the size and number of digits.

From "0" to "9", there are a total of ten underground towns numbered in single digits, and are filled with the most important underground war forts and military fortresses in the imperial capital. They have all kinds of magic weapons, fuels and cultivation facilities, and their defense system is even stricter than that of ground cities. When strong enemies attack and the ground cannot support them, most immortal cultivators can retreat underground and continue to resist.

From District 10 to District 99, these double-digit towns are often located in areas where down-and-out cultivators and brain workers in the original humans live, as well as various large public facilities, such as hospitals, schools and ventilation base stations that continuously deliver fresh air to the underground are often set up here.

Dongfang Renxin chose to open his secret research institute in a double-digit town because only two-digit towns can support the existence of such a large-scale hospital. When the fourth-level underground areas such as District 100 to District 999, which are the lower-level towns where industrial workers and physical workers live among the original people, they have no ability to support the existence of large hospitals.

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

At their feet, among the underground mines and rock formations over five thousand meters deep, there are four-digit and five-digit towns. These towns are like forgotten corners, completely abandoned by the upper class of the Empire, and even have no value for exploitation and exploitation, and they let themselves fend for themselves.

Li Yao was once very interested in the four-digit and five-digit areas built at least five thousand meters underground. He tried every means to collect materials in this area, but what he found was only a few words. It is said that the remnants living in the abyss had long degenerated civilization, and even basic intelligence was gone. Just like the "wolf child" who was abandoned in the jungle and raised by wild beasts since childhood, he only had the appearance of a human, but only the souls of wild beasts, and the existence of the muddy and ignorant creatures, which just proves that "real person" and "original person" are not the same race. "original person" are essentially a wild beast that looks very similar to humans, that's it.

The attitude of cultivators to treat these abandoned people deep in the ground is like an elephant treating ants deep in the mud under their feet. They are completely deemed that they do not exist, and they do not even have the interest to trample them to death.

Unexpectedly, Long Yangjun actually set up her nest in a five-digit underground town. What exactly are the residents "abandoned by civilization" here? What is Long Yangjun's so-called "conspiracy"?

Li Yao's head began to hurt again. He frowned slightly, climbed out of the medical pool with some difficulty, wiped his body clean under the service of Li Jialing, put on a mustard battle suit, and wore all the Qiankun rings to ensure that the crystal armor could be activated and fed at any time. Then he was excited and asked: "What kind of place is this...? Where is Dongfang Mingyue going?"

"I don't know how to describe it. I have lived on the ground and above the starship before. I never knew that there were still places in the civilized world, and that humans were living in... this way."

Li Jialing hesitated for a long time and didn't know what to say, but said, "Anyway, Brother Yao is awake now, so I can see it slowly, that... Sister Dongfang specifically instructed me when she left that no matter where Brother Yao wants to go, and everything is open to you if you want to see. It doesn't matter if you want to find her. In short, everything is free.

"But, don't worry about so much. Brother Yao, are you sure you are really okay? Do you want to use medical magic weapons to take a look? Sister Dongfang told me the whole picture of the battle. Unexpectedly, Brother Yao was so powerful that he could even bombard the Black Star Emperor Wu Yingqi with one shot. It's really... it's really..."

Li Yao glanced at the rusty medical magic weapon next to him, shook his head and said, "No need to take a photo. I should be fine. Even if I have any injuries, I don't care for so many days... By the way, why are you staring at my head?"

"Nothing, nothing."

The little lion shook his head like a rattle and said hurriedly, "I just want to say, Brother Yao, you can recover from your injuries. Just use your brain and carefully deduce and calculate the small matters. Leave them to me to deal with them. Don't destroy your brain cells without any unnecessary trouble. No matter how talented you are or outstanding, you should pay attention to maintenance!"

Li Yao blinked and stared at Li Jialing with suspicion: "What does this mean?"

"It's boring, just... I'll ask you to take care of it!"

Li Jialing held it in a long time and said, "If you don't pay attention to maintenance in your daily life, how can you fight with the Black Star Emperor Wu Yingqi next time?"

"By the way, after talking about this, I don't know if Dongfang Mingyue told you?"

Li Yao said anxiously, "After that battle ten days ago, we have confirmed that your mother was wrong decades ago. She was entangled by the remnant soul of the Black Star Emperor Wu Yingqi when she was exploring the tomb of the Emperor more than a hundred years ago. It was only in recent decades that it was slowly happening. So, in her original intention, she must not really want to kill you!"

Li Jialing bit his lips, looking both relieved and depressed, and said softly: "I know that if possible, I will definitely expel the remnant soul of the Black Star Emperor from the body of His Highness!"

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

"Fortunately, the remnant soul of the Black Star Emperor should have been seriously injured in that battle. It is estimated that it will delay his conspiracy for a while, give us some breathing space, find out what he is going to do, and come up with a way to crack it!

"But first, let's sort out how many cards we have in our hands. Since this is Dongfang Mingyue's nest, is there any advanced weapon refining room that can repair giant god weapons?"

Li Jialing shook his head quickly: "No, there is only a small weapon refiner here, and he can barely maintain the crystal armor, so the giant god weapon can do nothing."

"All right."

Li Yao thought about it, the super refining room that can repair the giant god weapon requires not only an extremely huge space, but also a stable and continuous supply of powerful psychic energy, as well as various precious resources and the support of a whole technical team. It is indeed not something that Long Yangjun can have in his secret base.

"What's here?"

He asked helplessly.

Before Li Jialing could answer, a soft knock on the door came from outside.

Pushing the door was a girl wearing a gray cloak with a face that had never seen the sun and was almost transparent. A trace of light green blood vessels appeared in the tiny bit, her pupils were slightly red, and they instantly gathered into two red beans. She was not very comfortable with the light, but her facial features as delicate as porcelain did not show any expression. She first bowed slightly to the two, then placed a huge tray in front of them, and said, "Please use the VIP slowly."

Li Jialing said thank you, but the girl said nothing else, and walked backwards without expression.

The girl has lived under the ground tens of thousands of meters deep for many years. She has never been to the ground in this life and has been exposed to real sunlight. Her appearance has become subtle differences from those on the ground and the shallow ground.

The tone is full of a monotonous and ethereal smell, like the drops of water on the stalactite deep underground, dripping on the smooth jade-like rock, "tick, tick, tick", which is both nice and weird.

Li Yao was interested in thinking about the girl's identity and the habits of underground humans. From the fact that the girl could say fluently "please use VIPs slowly", he knew that it was definitely not a "human-shaped beast" that the cultivator talked nonsense.

Looking at the huge metal pallet in front of me, it was originally a very flat industrial product, but it has been used for thousands of years. It is covered with bumpy marks, but the edges are polished to a shiny tiles, which can clearly reflect the light.

Above the metal tray is a large bowl of paste that is more viscous than rice porridge, and there is also a fragrant pipa-shaped animal leg. Don’t underestimate the skills of barbecue animal leg. Through the different traditional and simple methods of food processing, you can often see the level of development of a civilization.
Chapter completed!