During this day's search, the two of them did not find any useful clues. In the vast underground city, there were traces of human activities everywhere, but they could not see a single person, not even a single person.
No corpses were seen...
No staff were seen in the city's hub, the city's main control room.
All instruments, equipment, and infrastructure in the underground city are operating automatically, and even the underground transportation vehicles are operating in an orderly manner according to established patterns.
The entire underground city is filled with an extremely weird atmosphere.
What force could make such a huge underground city empty?
Zhao Yuan could not give a reasonable answer.
Xueyi, as an awakened human being, cannot be explained by science.
Of course, the two of them did not gain nothing. In addition to harvesting a lot of useful things, Zhao Yuan also gained an exoskeleton mecha. In addition, they also found out about the war that only heard and ignored the people.
The credit goes to Xueyi. When the two arrived at the city's main control room, Xueyi quickly understood the ins and outs of the matter.
Everything originates from the huge metal crust of the underground city. In fact, it is a huge instrument. When it is hit by an external force, it will generate a force to form Gang Qi. At the same time, it will also simulate ancient times.
The sound of war...
…
Many things seem complicated, but are very simple.
But a dungeon without a person is extremely complicated.
Zhao Yuan is a cultivator with vast supernatural powers, and Xueyi is an awakened human being with profound knowledge. However, the two of them cannot explain why there is no one in the dungeon. It seems that in an instant, everyone is...
All disappeared.
Zhao Yuan believed that even the most powerful gods among cultivators would not be able to do this.
It is easy to destroy the underground city, but it is simply impossible to make the hundreds of millions of humans in the underground city disappear at the same time without destroying the underground city.
Regarding the number of humans, Zhao Yuan and Xueyi reached a consensus and both believed that there were at least more than 100 million humans living in this underground city, and this was still an extremely conservative estimate.
Zhao Yuan spent the next three days searching, believing that he could always find some clues.
And Xueyi, in the past three days, was also looking for clues in the city's main control room.
Zhao Yuan gained nothing, but Xueyi gained greatly because she deciphered the city code, entered the city's main control optical brain, and called up the entire city's monitoring system.
Under the surveillance information, the prosperous side of the city appeared in front of them.
Busy traffic, hustle and bustle, some warm families, some heart-wrenching stories.
The surveillance footage made Zhao Yuan feel as if he had returned to Earth.
This is a city that is very similar to the earth. The only difference is that it is underground. Of course, the technological level here is much higher than that on the earth. The quality of the human beings here is even more unmatched by the people on the earth. As for the spiritual and material
, the two are not on the same level.
Such a powerful civilization suddenly disappeared, leaving behind only a ruins beyond human imagination.
No result.
Even though a large number of surveillance videos were discovered, there was still no result because the surveillance videos did not record the sudden disappearance of human beings...
…
Starlight is like silver.
Zhao Yuan and Xueyi sat side by side by the lake, looking at the vast stars in the sky.
"When are we leaving?" Xueyi Zhen leaned her head on Zhao Yuan's shoulder very naturally.
"Let's go?" Zhao Yuan smelled the fragrance emanating from Xueyi's body, and a wry smile appeared on his face.
"What's wrong?" Xueyi sat up straight, and she felt something was wrong from Zhao Yuan's tone.
"I don't have coordinates, and there is no teleportation array here." Zhao Yuan sighed.
"You mean you have no way to leave here at all?" Xueyi looked at Zhao Yuan in surprise, but she remembered that Zhao Yuan said with confidence that he could leave here.
"Maybe I can leave." Zhao Yuan hesitated and said.
"Because of me?" Xueyi Bingxue was smart and asked immediately.
"This...is a little bit..." Zhao Yuan hesitated.
"Say it, I don't mind." Xueyi sat upright with a calm look on her face.
"Although I don't have the coordinates to return to Zhanyun Continent, nor do I have a teleportation array, I can use the stupidest method to fly away from here with my sword. I just need to choose a direction and keep flying down. It doesn't matter whether the direction is right..."
"What you mean is that you can keep flying for decades, hundreds, or even thousands of years, because you are a half-immortal and don't care about time at all. In this boring flight,
You can practice and you can run your own Lingtai world. In fact, you will not be lonely because you have a Lingtai world. In your Lingtai world, you have countless people who can not only provide you with
Food can also provide you with a steady stream of faith... One day, you will encounter a planet inhabited by humans while flying. If you are lucky, you will encounter an ancient teleportation array, and you can reach it directly.
The human world..."
"Yes." Zhao Yuan looked at Xueyi blankly. He didn't expect that Xueyi could guess his thoughts right away.
"I've become a burden again." A bitter smile appeared on Xueyi's face.
"No, I won't leave for the time being." Zhao Yuan shook his head.
"Why?" Xueyi's eyes lit up.
"Flying in the vast universe, if there is no goal, time has lost its meaning. Then, what is the meaning of decades earlier and later? So, I decided to accompany you here."
"Stay with me? Stay with me until I grow old?"
"Ahem..."
"Then, you leave here again?"
"..."
"If this is the case, I would rather go with you." Xueyi said lightly.
"I think flying in the stars is very boring..."
"I would rather endure the endless boredom than waste even one day, because you still have four women waiting for you, and the kind of interstellar flight you mentioned will encounter human settlements and teleportation arrays.
, it all depends on chance, maybe, on the third day after we leave here, if we are lucky, we will be able to encounter an ancient teleportation array left by the gods."
"……this……"
Zhao Yuan opened his mouth, but hesitated. He was struggling with this problem, because when he was flying among the stars, he happened to encounter a meteorite belt, and he met the Sky-Defying Monkey.
Suffice to say, there is a big difference between leaving early and leaving late.
"You have two choices. First, abandon me here; second, take me away!" Xueyi said decisively.
"Are you... not afraid of loneliness?"
"Don't be afraid." Xueyi's clear eyes showed an extremely determined look.
"Well, after your course is ready, we will set off."
"good."
…
The so-called curriculum is to use the equipment in the underground city to develop courses. The content of the courses is mainly to teach some basic scientific knowledge, including basic education for children to higher education courses.
Because Zhao Yuan and Xueyi were leaving, the only way was to arrange classes via computer.
People in the meteorite belt belong to the cold weapon age. It is undoubtedly a fantasy for them to completely master the technology of the dungeon. Therefore, Xueyi’s courses are mainly about mastering some simple operations, and more courses focus on newborn children.
educate.
If we follow the curriculum education arranged by Xueyi, it will take up to forty years to cultivate a group of young people who can use underground city equipment. Of course, it will take at least a hundred years to fully digest the scientific knowledge of underground cities. Moreover,
They still need to continue to explore.
No one can predict what kind of civilization the hunters will be able to reproduce on the basis of the dungeon. After all, there are too many human factors. If there is a slight disconnect, it may develop in another direction.
What Xueyi did was just to the best of her ability. If nothing unexpected happened, according to Xueyi's arrangements, this planet would regain its glory.
The underground city provides an almost perfect living space for the hunters who migrate here. Here, there is no need to worry about life at all, and there are no natural enemies. Even if there are intruders from outer space, the underground city
The defense is enough to withstand most powerful people. You must know that the strong energy caused by the collision resonance is deeply feared by even Zhao Yuan, a cultivator with a half-immortal body.
Until now, Zhao Yuan still has not understood the principle of the generation of Gang Qi. After all, it no longer belongs to the category of science. Of course, it does not belong to the category of cultivation. If he insists on finding a reasonable explanation, it can only be said that
It is a miracle created by science combined with cultivation.
Xueyi worked at full capacity for five days and finally completed her work.
It must be said that Xueyi is a careful woman. In addition to teaching Chengren to master some simple mechanical operations, her lessons are arranged for children until they are thirty years old.
If Xueyi completes all the courses, Chengren's child will become an excellent scientist when he grows up.
After the course, Xueyi has many plans. That is to say, after completing all the courses, some more profound knowledge will appear step by step. When the learner knows how to control the dungeon equipment and starts learning with purpose,