"Five digit area!"


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


    Any habitable planet with stable geological conditions for human reproduction often has a triple structure composed of earth''s core, mantle and crust, and Antarctica is no exception.


    Such a habitable planet is like a huge egg. The core of the earth is the yolk, the mantle is the protein, and the crust with a thickness of 350 km is a thin "eggshell".


    Although the earth''s crust is only a thin layer, it is the main living and resource collecting area of human beings underground.


    If a small hole is drilled at will in the mantle further down the crust, or in the magma with high temperature and pressure, it will lead to magma eruption and destroy everything; Even if the most advanced earth drilling magic weapon consumes an astronomical amount of power, it may not be able to drill much deep; In addition, the energy generated by earthquakes is often tens or hundreds of times higher than that released by the most powerful crystal bomb of human beings, and the crushing and tearing force of plate movement can not be resisted by any strong human being.


    In a word, the mantle is a dangerous and cost-effective dead area. Although the tentacles of human civilization have swept thousands of planets in the world, they are still only on the "eggshells" on the surface of these planets. There is no need to go deep into the mantle.


    On the Celestial Star, the capital of Human Empire, all towns are divided into six levels according to altitude and civilization.


    The first level is cities with names on the ground, such as the central government district where the Senate is located, which is named after the emperor of the founding of the country, known as "Black Star City".


    There is also the "Baishi special city", the refining center of heavy industry magic weapon that Lee Yao and long Yangjun once fought fiercely. In a word, as long as they have a name, they are often megacities with high civilization and the mainstream of immortals.


    Although underground towns have no names but numbers, the differences can be seen according to the size and number of numbers.


    From "0" to "9", a total of ten underground towns numbered by single digits are full of the most important underground battle fortresses and military fortresses in the imperial capital. There are all kinds of magic weapons, fuel and cultivation facilities. The defense system is even more strict than that of the ground cities. When the strong enemy attacks and the ground can''t support it, the vast majority of immortals can withdraw into the ground and continue to resist.


    From the 10th to the 99th districts, these double-digit towns are often the areas where the down and out immortals and the original mental workers live, as well as various large-scale public facilities, such as hospitals, schools and ventilation base stations that continuously supply fresh air to the ground.


    Dongfang Renxin chose to set up his secret Research Institute in double-digit towns, because only double-digit towns can support the existence of such large-scale hospitals. Until the fourth level underground areas such as the 100th to 999 districts, that is, the bottom towns where industrial workers and manual workers lived, they simply can''t support the existence of large hospitals.


    However, the three digit area where industrial workers and bottom class workers live is not the most miserable and barren area.


    At their feet, in the underground mines and rocks more than 5000 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 of exploitation and exploitation, leaving them to live and die on their own.


    Li Yao was very interested in four digit and five digit areas built at least 5000 meters below the ground. He tried every means to collect materials in this field, but only a few words were found. It is said that the civilization of the adherents living in the abyss has already degenerated, and even their basic intelligence has disappeared. It is like being abandoned to the jungle since childhood, The "wolf child" raised by wild animals has the same appearance as human beings, but only the soul of wild animals. The existence of these ignorant and stupid creatures just proves that "real person" and "original person" are not the same race, and "original person" is essentially a kind of wild animal that is very similar to human beings, that''s all.


    The attitude of the immortals to the abandoned people deep in the earth is the same as that of the elephant to the mole ants deep in the mud under his feet. They don''t even have the interest to trample them to death.


    I didn''t expect that long Yangjun would set her old nest in a five digit underground town. What are the "abandoned" residents here and what is long Yangjun''s so-called "conspiracy"?


    Li Yao''s head began to ache again. He frowned slightly and climbed out of the medical pool with some difficulty. Under the service of Li Jialing, he wiped his body clean, put on his mustard combat suit, put on all the heaven and earth precepts, and ensured that the crystal armor could be activated and colonized at any time. Then he got a boost and asked: "what kind of place is this... And where is the Oriental moon?"


    "I don''t know how to describe it. I used to live on the ground and on starships. I never knew that there were such places in the civilized world and that human beings lived in such a way."


    Li Jialing hesitated for a long time, but he didn''t know how to say it. He just said, "anyway, brother Yao is sober now. When she left, sister Dongfang specially told him that no matter where brother Yao wants to go, he can open up everything he wants to see. It doesn''t matter if he wants to find her. In short, everything is free.


    "But don''t worry about so much, brother Yao. Are you sure you''re ok? Do you want to take a picture with a medical magic weapon? Sister Dongfang told me the whole picture of the war. Unexpectedly, brother Yao was so powerful that he could even run away with one shot from the black star Emperor Wu Yingqi


    Li Yao glanced at the rusty and dusty medical magic weapon beside him, shook his head and said, "don''t take photos. I should be OK. Even if I''m injured, I don''t care about these days... What are you staring at my head all the time?"


    "Nothing, nothing."


    The little lion shook his head like a rattle and said in a hurry, "I just want to say, brother Yao, although you take good care of yourself, you need to use your brain, carefully deduce and calculate all the little things. Just leave them to me to deal with. Don''t destroy your brain cells. No matter how talented and outstanding you are, you should also pay attention to maintenance!"


    Li Yao blinked and stared at Li Jialing suspiciously: "what does that mean?"


    "It''s boring. I just want you to pay attention to maintenance."


    Li Jialing said for a long time, "if you don''t pay attention to maintenance, how can you fight with Wu Yingqi, the black star emperor next time?"


    "By the way, speaking of this, I wonder if Dongfang Mingyue has told you --"


    Li Yao said urgently, "after the war ten days ago, we have determined that your mother was entangled by the ghost of Wu Yingqi, the black star emperor, when she explored the emperor''s tomb more than 100 years ago. It only happened in recent decades. Therefore, in her original intention, she must not really want to kill you!"


    Li Jialing bit his lips, looking both happy and sad, and said in a soft voice, "I know that if possible, I will expel the ghost of the black star emperor from her royal highness!"


    Li Yao shook his head and said: "it''s not enough just to expel you, because you are very likely the carrier he carefully prepared for himself. If you escape from the Queen''s body, but enter your body, the consequences will be more serious.


    "Fortunately, the ghost of the black star emperor should have suffered a lot in that fight. It''s estimated that it can delay his conspiracy for a period of time. Let''s have a little breathing space to find out what he is going to do and come up with a solution!


    "But first of all, let''s sort out how many cards we have in our hands. Since this is the nest of Oriental moon, is there a refining room with advanced facilities that can repair giant soldiers?"


    Li Jialing quickly shook his head: "no, there''s only a small refining room here. It''s barely able to repair the crystal armor, but the giant soldiers can''t help it."


    "All right."


    Li Yao thinks that the super refining room, which can maintain the giant magic weapon, not only needs a huge space, but also needs a stable and continuous supply of powerful psionic power. It also needs the support of all kinds of precious resources and a whole technical team. It''s really not what long Yangjun can have in his secret base.


    "And what''s here?"


    He asked helplessly.


    Before Li Jialing answered, there was a gentle knock on the door.


    The girl who pushed the door was a girl in a gray cloak. She had a face that was almost transparent and had never seen the sun before. The blood vessels of light cyan were all very delicate. Her pupils were slightly red. In an instant, they gathered together into two red beans. She didn''t adapt to the light. Her delicate features, such as porcelain, didn''t show any expression. First, she bowed slightly to them, Then he put a huge tray in front of them and said, "please take your time."


    Li Jialing said thank you. The girl showed no other expression and walked out backward.


    The girl has lived under the ground tens of thousands of meters for many years. She has never been to the ground in her life and has been exposed to the real sunshine. Her appearance is subtly different from that of people on the ground and under the ground.


    And the tone is more full of a monotonous and ethereal flavor, like the water drops on the stalactite deep in the earth, the sound of dripping on the smooth jade like rock, "tick, tick, tick", which is both nice and strange.


    Li Yao pondered with great interest on the identity of the young girl and the habits of the underground human beings. From the fact that the young girl could say "please use it slowly", he knew that she was not a "human beast" of the Immortals'' nonsense.


    If you look at the huge metal tray in front of you, it should have been a very flat industrial product, but I don''t know that it has been used for thousands of years. It is full of potholes, but the edge is polished and polished, which can clearly reflect the light.


    On the metal tray, there is a big bowl of paste which is thicker than rice porridge, and a Pipa shaped leg which is fragrant. Don''t underestimate the craft of barbecue leg. The development level of a civilization can be seen through the complexity of food processing methods.


    It is impossible for the barbarians to be proficient in cooking. A civilization that can use dozens of cooking techniques and hundreds of seasonings must be highly developed.