"To build a separate underground base, not only do you have to consider the topography and geology, but you also have to find a way to hollow out the earthwork and rocks underground. ”

"This is much more difficult than directly finding a cave that has not collapsed for millions or even hundreds of millions of years in the ground, and it can be put into use with a little decoration. ”

Er Yi shrugged his shoulders and said: "It hasn't collapsed for so long, there must be a reason for it, at least it is very solid in structure, and it is estimated that it has collapsed long ago if it is not solid...... And these caves haven't collapsed for hundreds of millions of years, so we won't be so unlucky that we will collapse as soon as we move in, right?"

"This huge underground cavern has been tested by nature. ”

"Unless there is a natural catastrophe of the scale of the end of the world, it is theoretically impossible for it to collapse. ”

"If we look from below, the dome above is roughly flat, but at that time, because the area of this underground hole was so large, it was like the concept that we would feel that the earth was flat when we stood on the earth. ”

Pointing to the 100-meter-high dome, Er Yi explained: "But in fact, these underground cavities are roughly semi-circular, like a bowl upside down on the table, which is the so-called 'eggshell theory', so don't worry about it suddenly collapsing...... At least it won't collapse until you die. ”

After Xiao Qianhe put down the salute he was carrying, Zhou Li, Lao Wang, Da Liu and others, who secretly came over to listen to their chat, looked confused, although they didn't understand, but they felt so powerful...... Oh no!

Zhou Li, who felt as if she had been wound in, shook her head, was this discussing the question of whether the underground cave would collapse?

Shouldn't we discuss how the battle suddenly discovered this, hidden in the underground space that I don't know how deep it is?

And after discovering this underground space, how did the war suddenly dig one or more tunnels, enter here and build this underground city?

It's not enough to say that this underground city was originally here, and after the war suddenly found out about it, it moved in directly, right?

However, these questions involve too many sensitive secrets of the war, and Zhou Li's "newcomer" identity did not dare to speak rashly, so he had to let Xiao Qian find an opportunity to ask through the "spiritual call".

After dealing with the people who have been fighting for so long, Xiao Qian has also roughly figured out the temper of the members of this mysterious organization.

That is, there are no secrets in the organization that cannot be asked, and they will naturally tell you what they can tell you, and they will tell you directly if they can't tell you, and they can't know it for the time being with your authority (mainly because the excuse hasn't been made up yet).

So after receiving Zhou Li's spiritual communication, Xiao Qian asked directly.

"How did you find out?"

"This big underground hole has been discovered a long time ago!"

"At the end of the last century, scientists used four ultra-wideband magnetotelluric deep profiling techniques. ”

"It was found that under the Northwest Desert and the Tibetan and Mongolian Plateaus, there are more than 100,000 square kilometers of hollows, so there is a legend that 'the bottom of the Tibetan and Mongolian Plateau is empty'......"

Seeing that many members of the new training camp were curious, Er Yi simply said: "Since you are interested, and you just reported for duty today and don't need training, I will tell you about the various things of our 'war situation', so as not to think how mysterious the war situation is." ”

As he spoke, he pointed to an assembly hall in the new training camp and walked over with the crowd.

And a large number of newcomers rushed out of the dormitory after getting the news, and the tide was rushing towards the Great Hall, and Zhou Li was shocked when they saw it!

They knew very well that these newcomers recruited by the War Suddenly Bureau, except for the more than 100 people who were transferred from the Super Management Bureau and were ready to enter the internal War Situation.

They are all identified by the Black Devil Company using the big data of player behavior in "The Coming of War", and then secretly send people to recruit, generally all of them are descendants of young ancestors under the age of thirty, and middle-aged and elderly people like Lao Wang and Da Liu are relatively rare among newcomers.

The most frightening thing is that these young descendants of the ancestors are basically all hidden among the ordinary people, and the number of "hidden people" who have not been discovered by the major ancestor clans and official supernormal management agencies is probably in the thousands, and this is only the first batch that has passed the screening!

Most of them don't even know that they belong to the descendants of the ancestors, but they just think that they have awakened the so-called "superpowers".

Because he has been poisoned by film and television dramas and online articles all year round, he feels that he will be caught and sliced after being exposed, so he has been carefully hiding himself.

If it weren't for the fact that they were driven crazy by the Hell difficulty in "Falling to War", and they felt that they would not be discovered in the virtual reality game, and accidentally exposed their abilities when they let go of themselves, they might have been hiding until they died, and they would not have revealed their identity as "mutants" until they died.

After all, the descendants of the ancestors who have just awakened have very weak control over their own bloodline abilities, and they can't exert any threatening power at all.

In addition, when the bloodline ability of the descendants of the ancestors first started, most of them were blowing a small wind like Xiao Qian, or condensing a little mud ball like Da Liu, and the most powerful thing was nothing more than smoking without a lighter, making a small fire or something.

At this level of ability, if they dare to swell, it will be called hell, Huang Country is not comparable to Western countries, there are Zhenguo Divine Beasts, who dares to make trouble with demons?

Therefore, the Super Management Bureau, which has always wanted to control the descendants of these ancestors, can only wait for them to be exposed before contacting each other, so that there are always not many people under their command...... It's no wonder that the nine-year compulsory education is too good, and the children in China are too well-behaved.

“...... As for how this large underground cavity was formed, scientists also have some speculation. ”

"The mainstream view is that it was caused by the collision between the Tianzhu subcontinent and Eurasia 70 million years ago. ”

"Most of the scientific community believes that the Tianzhu continent subducted into the lower part of the Eurasian continent in the collision, causing the Tibetan and Mongolian plateaus to rise upward, and the continental plates squeezed each other to form the world's highest peak, which is the so-called 'continental subduction theory'. ”

"The thickness of the Tibetan and Mongolian Plateau is about 70~80 kilometers, which is much thicker than the thickness of the earth's crust in ordinary areas, but scientists have found that the mass of such a thick crust is far lighter than imagined!"

After the newcomers finished in the auditorium of the new training camp, Er Yi simply repeated what he had just said to Xiao Qian, and then continued: "That is to say, there are a large number of huge bubble-shaped underground cavities under the entire Tibetan and Mongolian Plateau and the surrounding continental plate impact area!"