Lou Lanfeng was surprised: "There is electricity here, how much does it cost?" ”

Xia Xi walked to the window: "Decades of development have only come to this point, and it's still early." She pointed to the alloy cover above her head: "That one is also electrified, the voltage is relatively low, and it works like a radar, monitoring if there is anything going out here." ”

Lou Lanfeng: "It's all come to this point, I don't know what it is?" ”

Xia Xi shook his head: "I don't know, there are several such imports and exports in the country, we have tried our best to monitor them, and we have also sent several investigation teams after synthesizing all the contact information, but the vast majority of people have gone and never returned, and only Su Ting in the ministry has returned alive." ”

Lou Lanfeng was very shocked: "Since someone has come back, there is always a result of an investigation more or less, right?" ”

Xia Xi said: "Bring back a lot of possibilities and a non-aggression pact. ”

Lou Lanfeng: "Non-aggression pact? Are you saying they're really human? ”

Xia Xi: "I didn't say that I was a human being, and I haven't forgotten your Taiyin refining form?" What is certain at the moment is that they are by no means the human beings we define themselves, not even the kind of humans that are too Yin Refining Form. ”

Lou Lanfeng was even more surprised: "If you can sign a contract with us, that is wisdom, if you are not a human being, can't you be an alien?" ”

Xia Xi shook his head: "Not necessarily, it's still difficult to draw conclusions, maybe it's also an earth creature, and it's older than humans." ”

Lou Lanfeng: "So what is the possibility that Su Ting brought back?" What exactly is the content of the treaty? ”

Xia Xi turned his head to look at Lou Lanfeng: "What I just said is almost all the possibilities she brought back, not human, it may come from outside the earth, or it may come from inside the earth." ”

Lou Lanfeng spread his hands: "This doesn't mean that there are no dry goods, I can guess it." ”

Xia Xi left the window and walked over to examine the instruments one by one while continuing: "Their way of existence is beyond the visible spectrum of humans, which means that they are basically invisible to humans; Under certain conditions we can see them, they are deformable bubble-shaped, and it is not known whether this is the appearance of the living beings themselves or if they have some kind of coat or vehicle; We've had more than one attack on this kind of thing before, and at most we got the same liquid from last night, and we didn't find the body, so it's unknown whether this liquid is the bodily fluid of this kind of thing or the environmental fluid on which it lives. ”

Lou Lanfeng asked, "They don't have eyesight or a different sense of smell from humans, and that's how they analyzed?" ”

Xia Xi nodded.

Lou Lanfeng then asked: "Since they can make a contract with us, they can communicate, won't they rely on sound waves like us?" We don't even know for sure if they live in liquids. ”

Xia Xi closed the lid of an instrument and said: "We are not only in a completely different ecology with them, but also in two completely different cultures, and they should communicate with each other through some kind of psychological induction, but the communication with humans in the same way can only be maintained at a very low level, which is basically a kind of mental signal. ”

Lou Lanfeng: "It seems that Su Ting is not the only one who has been in contact with them. ”

Xia Xi then checked and said, "Yes, Su Ting came into contact with them during the underground mission, which is relatively formal, and we have had brief and sporadic contact on the ground. ”

Lou Lanfeng saw that she was almost done with the inspection and asked, "Did you find anything?" ”

Xia Xi closed the last lid: "The monitoring results of these instruments are sent to the satellite uninterruptedly, and we haven't found anything escaping through here recently, I just checked whether the instruments are working abnormally." Now it seems that the instrument is indeed fine. ”

Loulan Feng walked to the window, and could feel the wind blowing down the deep hole outside, he said: "The wind here is so strong, it must be convection, have you found the exit at the other end of this hole?" ”

Xia Xi also walked over: "We have searched the vicinity, and we have also taken infrared photos with satellites, but we have not found an exit, which is also a very strange thing." ”

The two of them listened to the whining wind outside and did not speak again.

Finally, Lou Lanfeng asked, "Everyone is surviving in their respective worlds, so what is the purpose of them running up to collect corpses?" ”

Xia Xi said: "According to the analysis, they have no eyesight or the spectrum of vision is very special, completely different from us, so we can't see each other, the corpses have no life, they may dig up those corpses like mining, as for what material elements are extracted, it is not known, at present, it is only known that thiol has an attraction effect on them." ”

Lou Lanfeng: "The people we went missing are alive. ”

Xia Xi said: "So you need to ask to understand." ”

Lou Lanfeng was surprised: "Who to ask?" ”

Xia Xi: "They! ”

Lou Lanfeng looked at Xia Xi and laughed: "You tease me? ”

Xia Xi greeted Loulan Feng: "Do I dare to tease you?" ”

Lou Lanfeng laughed twice: "How do you ask?" ”

Xia Xi said, "Let's go up." ”

Xia Xi was in front, Lou Lanfeng was behind, and he climbed up the stairs. Lou Lanfeng looked up at Xia Xi's ass, wanted to reach out and held back.

Xia Xi's sixth sense was very accurate: "If you move your hands and feet, I will kick you down!" ”

The bright sunlight above made Lou Lanfeng look a little discolored, and he asked Xia Xi, "What are we doing now?" ”

Xia Xi walked to the middle of the net, pointed to the bottom and said, "You program the grenade, shoot three rounds down, explode the first one in two thousand meters, and then explode one every one thousand meters." ”

Lou Lanfeng turned on the digital camera and controller, programmed it to kneel in the middle of the net and asked Xia Xi: "How deep is this hole?" ”

Xia Xi said: "At least five thousand meters." ”

Lou Lanfeng shot out three grenades, and Xia Xi quickly left the alloy net, and soon there were three explosions under the cave, but not even a single wave of air came up.

Lou Lanfeng pointed his gun at the hole: "Will they attack?" ”

Xia Xi said: "According to previous experience, it will take half an hour to come up, so we will wait for the room below." ”

Lou Lanfeng frowned and asked her, "Are you sure?" The space was too small for us to retreat. ”

Xia Xi said as he took the lead down the stairs: "Sure, lock the door when you come down!" ”

The two of them returned to the cramped room, and Xia Xi asked Lou Lanfeng, "Have you heard of the Fermi paradox?" ”

Lou Lanfeng said: "I am a liberal arts student. ”

Xia Xi then said directly: "Fermi is a Nobel Prize-winning physicist, seventy years ago he raised a question: the universe has existed for about 13 billion years, other galaxies are too far away we can not consider it, there are billions of planets with habitable potential in the galaxy alone, such a long time and such a huge number, there should have been intelligent life shuttling through the galaxy a long time ago, it stands to reason that there should be spaceships flying around in space, but where are they?" ”

"Because you have to think about it, human civilization has existed for less than 10,000 years, and the industrial revolution has been flying into space for more than 200 years. This is really a difficult question to understand, is it really only human beings in the whole universe? ”

Lou Lanfeng held the gun and nodded: "If you want to say that, I also remembered, I also thought of this question, it turned out that such a powerful person raised it so early." ”

Xia Xi glanced at him and continued: "The analysis of our scientists based on our years of underground discoveries coincides with the latest theories of the US space agency, maybe there is a wide range of intelligent life in the Milky Way, but most of them live in deep, dark underground or underground oceans, isolated from the rest of the universe. ”

"Underground cavities and oceans are probably common in the Milky Way. In fact, if we use our solar system as a reference, oceans are very common. Under the extremely cold surface shells of Jupiter's moons Ganymede, Ganymede, and Ganymede, as well as under the crust of Saturn's moon Enceladus, there are oceans of liquid water. And it is speculated that there are also subterranean oceans on other planets, including Pluto. The only planet known to have a liquid ocean on its surface is Earth. ”

"The subsurface and subsurface oceans provide a more stable environment than surface water bodies. As a result, celestial impacts and solar flares, nearby supernovae, what kind of orbit they orbit, whether there is a magnetosphere, whether the atmosphere is toxic or not, and so on, all become irrelevant. Such an environment may on average give life a longer time to evolve intelligence and sophistication. ”

Lou Lanfeng answered: "So we can come to a conclusion that the possibility of the existence of intelligent life underground on the earth, which is suitable for life on the surface, is probably tens of thousands of times higher than that of these planets, right?" ”

Xia Xi nodded: "Life on the surface of the earth has existed for hundreds of millions of years, during which it has experienced several large-scale extinctions, maybe the existence of life on the surface of the planet is a special case and an anomaly, and the existence of life underground is the norm and normal." ”

Lou Lanfeng: "But it is also difficult for the life underneath to develop the cosmic transportation technology to leave their own planet, because it is extremely difficult for them to reach the surface of their own planet. ”

Xia Xi said, "Yes." Then he took out the two gas masks from his bag and handed them to Lou Lanfeng: "This is not an ordinary gas mask, when we put it on, we can see those things when we turn it on, enter the spectrum of the mask and edit it." ”

Lou Lanfeng took it: "Since you have this thing, why didn't you use it last night?" ”

Xia Xi said: "Once the machine is turned on, there will be reflected light on our faces, and we ourselves will be exposed, and it will be dangerous to use it last night, and we will face the liaison messenger." ”

Lou Lanfeng: "Messenger? To communicate? Is that no danger? ”

Xia Xi said: "It's hard to say. She took out the liquid sample she had taken last night and placed it on the windowsill.

No wonder two samples were taken, and it seems that one was taken as evidence.

She took out another sampler and said to Lou Lanfeng: "Do things according to the regulations, stretch out your arm to take samples." ”

Lou Lanfeng stretched out his arm, Xia Xi took a blood sample, sealed it and placed it in a corner of the room. The sampler is very robust and can withstand tank crushing.

Lou Lanfeng looked at Xia Xi, and suddenly walked over and hugged her shoulder: "Wait for you to be behind me, everything will be up to me." ”

The two of them put on their masks and turned on the machine, the lenses in front of them emitted a lilac light, and there was no mouth for shooting outside the room, so Lou Lanfeng simply put away the gun.

The two of them stood in front of the window and stopped talking, only hearing the wind outside the window and their own breathing.

After about ten minutes, I don't know whether it was gradual or sudden, the wind outside the window suddenly stopped completely, and it became extremely quiet!