"How can there be a sense of sight of the terracotta warriors..."

　　 The rhizomes spread uninterruptedly, letting the rhizomes traverse the longitudinal rows from the intervals between these cubes.

The roots of the 　　 rhizomes stretched out, and they pierced into the cube skillfully, carefully secreted out the connecting protein, strengthened the cube itself, and cleared away the dusty rocks covering the surface.

The 　　 rhizome system is in this way while cleaning up the ‘cultural relics’ while growing and spreading at an unabated speed.

After clearing away those dusty rock blocks, the original appearance of the cube appeared in front of Huogu. It was two meters long, half a meter wide, and three meters high. This data is not absolutely accurate. The error of the side length between each cube is about one to one. About three centimeters, the material is the same as the metal wall, which may be the reason why the array can exist so complete for hundreds of millions of years.

　　 It can be seen that the things in this cube array are not the same thing as the cubes seen before. In terms of appearance, these array cubes are more like tombstones.

　　 There are countless lines on the surface of these repaired cubes. This is not a natural formation, nor is it that Huogu, an experienced guy, finally has a hand error, but the original lines of these cubes.

These lines are combined into geometric patterns of similar size on the surface of the cube. Each pattern occupies an area of ​​four centimeters square on the surface of the cube, and they are arranged in a neat row. Among the geometric figures, scattered mixed with dots. symbol.

　　 Obviously, this is text, an unidentified text completely different from human language.

　　 "This seems to have nothing to do with tombstones, and is more similar to those slabs used to record important information in tombs, that is to say..."

　　 Huo Gu looked around, the entire array was endless, even if Huo Gu adjusted the eye sight distance, its scale far exceeded any tomb group on earth.

"this is a book?"

　　How to keep information longer?

　　 This is a very difficult thing, because in this universe, entropy is everywhere, and natural erosion will inevitably destroy the stored readable information into uninterpretable noise. The difference is nothing more than the length of time.

　　On Earth, there is only one way to preserve information on a time scale of hundreds of millions of years—carving words on stones.

　　 is not really using stone as the carrier of information, but a metaphor, that is,'burn information on a solid that is extremely difficult to change'.

　　 Obviously, the intelligent life that burned words on the cube array had thought of going together with the human beings on the earth, and that is why such a huge ‘Book of Array’ was made.

　　 "It's a pity, I haven't been very good at language deciphering things."

Huo Gu stared at the words on the cube with greedy eyes but regret. Although he was born in archeology, it focuses more on improving the excavation skills of those cultural relics. If it is an ancient text on the earth, it has a little foundation to be able to read. Probably it means, but it is really powerless for alien characters without any foundation.

　　 Deciphering a completely unfamiliar language really requires a scientific research team specializing in language and a national-level mainframe computer to do it.

Putting the cube array aside for now, Huogu turned his attention to the rhizomes that had spread to the front. At this time, the rhizomes finally spread out of the cube array. Huogu roughly calculated the volume of the cube array. The size of the land, one hundred square kilometers, is equivalent to the area of ​​14,000 football fields.

　　 At the far end of the cube array, Huogu can see that there are two thin lines in the distance, like a rope standing between the sky and the earth.

　　 "There is another sea column?"

　　 Huogu looked at his current distance from the previous water source. Although it was still within an acceptable range and could be solved by expanding the delivery volume, since there were more supply points that could relieve the logistical pressure, it was naturally not a bad thing.

　　 In order to save organic materials, Huogu allows the rhizome system to preferentially cover the growth of two distant thin lines.

However, the thin line this time made Huo Gu puzzled. The thin line became thicker in Huo Gu's field of vision, but the figure was still blurred. It seemed that there was still a considerable distance between them. Both thin lines This is the case.

　　 This anomaly, Huogu noticed immediately.

　　 "Strange, could it be that the cracks in the top layer are larger, and the two water columns are thicker than the previous one?"

　　 The answer will be revealed soon. The spread of the rhizome continues, about a distance of more than 40 kilometers, and finally the rhizome is extended to the position of two pillars.

　　 These two pillars are not water pillars, and have nothing to do with water. They are the supporting pillars that support this huge underground cavity. They are huge pillars with a diameter of one kilometer alone.

At the far end of Huogu’s current location, there are also vertical thin lines distributed on both sides. It can be guessed that they are also similar to the supporting pillars at the current location~lightnovelpub.net~ The pillars here seem to be Can appear in the field of vision frequently, why can't I see any supporting pillars during the distance traveled before? "

　　 Huogu has traveled almost three hundred and seventy kilometers so far. However, during this distance, no giant supports like pillars have been seen.

　　According to the current observation structure of the underground cavity, there should be supporting pillars in the distance that Huogu passed by. Then the question is, where are the huge pillars?

　　 While Huo Gu was meditating, he inadvertently saw the cube array that had been completely occupied by the rhizome system, and suddenly realized it.

　　 Obviously, to build such a huge array of cubes, it takes a huge amount of alloys that can support hundreds of millions of years. So where are the sources of these materials?

　　 The metal wall is impossible to dismantle, because it is underground, and the possibility ball is still in a molten state at that time. The whole is a giant lava ball. Removing the metal wall is purely a death-hunting behavior.

Then there are only support pillars made of the same material, because the planet is still in a completely molten or semi-melted semi-solid form, and the pressure cannot be as high as the underground pressure of a solid planet, so it makes sense. .

　　 "So, this underground cavity...what the **** is it?"

Smart life makes something that is usually endowed with a certain purpose in it, and like the underground cavity in the depths of Huogu, this kind of technology cannot be achieved even in the human world. This is already a major civilized project, so this place Hollowness is by no means the product of boring the guy who is so idle.

　　 Let alone the "Book of Formations" covering an area of ​​100 square kilometers.

　　 So what is the meaning given to this place at the beginning of its construction?