Huo Gu pondered for a while, but could not find any clues about this super giant underground cavity in the information collected.

Eight hundred million years, a time of vicissitudes of life, is enough to cause any dazzling object to decay.

At present, Huogu can find something that is of certain value, that is, the book of formations that occupies one hundred square kilometers, but the problem is that it does not have the ability to interpret the contents of this huge book of formations, so it can only look at it in despair.

In the following period, the rhizome system passed through twelve pairs of support columns and thirty-two seawater columns formed by the cracking and falling of the bottom layer, and finally completely covered the entire ground of the underground cavity.

"Finally the work is over."

The command of the rhizome system requires Huo Gu to expend a lot of energy. You must know that the area occupied by this underground cavity has reached the concept of '100 million'. In fact, every place and every section of the rhizome system is monitored.

Partially, it consumes Huo Gu’s energy quite a bit.

Freed from mental work, Hogu moved his gaze upwards.

"If you're on the top floor..."

"...Forget it, the rhizome system also has its own weight. If it occupies the top layer, it may break the stress balance on the top layer, and the consequences will be quite serious."

Once the breach in the top layer is too huge, it may even trigger a chain reaction and cause the entire top layer to collapse. After all, it is an 800-million-year-old antique.

In other words, the exploration of the underground cavity is over?

No, Huo Gu turned downward and backward to continue exploring. Since the left and right sides, the top floor and the front are all metal walls, the boundaries in other directions are probably also metal walls. In other words, a considerable part of this underground cavity is.

They are actually buried under rock formations.

This is most likely the result of damage to multiple parts of the cavity in the early stages, causing lava to seep into it.

As it stands, neither the builders of this place nor this building belong to this planet.

Although the early molten planets also had oceans, they were lava seas with average temperatures above 1,500 degrees Celsius and various extreme environments.

In addition, the early days of the planet are not just the early days of its individual, but also the early days of the planetary system. There are tens of millions of stray meteorites floating in the planetary system, so space traffic accidents in which meteorites fall into the planet will occur every now and then.

To describe it from an intuitive point of view, it is a situation where a Tsar nuclear bomb is detonated somewhere on the earth every few days. In addition, because lava is fluid, the shock wave can easily spread around the world. The only difference is that it is strong or weak.

Just two concepts.

If hell really existed in this world, it would probably look like this.

Taking a step back, even if there are intelligent creatures living in the lava sea, and they are civilizations that have developed to a certain stage, there is no need for them to build this kind of building. According to the traces found in the cavity so far, the building was originally empty.

, the lava only existed in this building after the building was damaged.

I would like to ask, is it necessary for a civilization born in a lava sea to build such a building that is completely different from their living environment?

It might be said that it is for large-scale scientific experiments, but judging from the size and quality of the void, this speculation is completely unconvincing.

The rhizome system followed the instructions and explored downwards. The solid volcanic rock was easily squeezed open by the rhizomes like tofu, and something was soon discovered.

However, Huogu was not happy about what he found. The thing he found was a metal plate, which was the same as the first metal plate found.

A little disappointed, Hogu continued to order the rhizome to explore downwards, believing that he would definitely find something.

Huogu's belief is not without reason. Rock formations can often seal some things relatively intact for a long time, such as those dinosaur fossils.

It is absolutely impossible for a space as huge as this man-made cavity to be home to just one intelligent life form. If the original shattering was a sudden accident, then it is extremely likely that there are the skeletons and fossils of the builders beneath the ground of the underground cavity.

.

After that, after a while, the rhizome system reaches the boundary of the cavity, but it is not a rhizome that explores downward, but a rhizome that explores backward.

Because there is a rock layer as a support, Hogu does not need to worry about collapse. The roots spread crazily to cover the main area at the rear, including the top floor at the rear. Therefore, several holes in the metal wall at the rear were discovered.

This confirmed Huogu's previous guess of "lava pouring into the hole through a hole", which made him search every corner of the underground rock formation more vigorously and carefully.

The hard work paid off, and its efforts were not in vain. The fossils that had been sleeping in the rock formations for 800 million years were discovered by the rhizomes that expanded unscrupulously, and it was a large area when they were discovered.

After injecting connexin to stabilize the material structure of the fossil, Huo Gu concentrated on operating the rhizome to separate the rock layer above the skeleton, and very carefully lifted a skeleton sample upwards.

When the fossilized bones were lifted out of the rock formation, Hogu finally had the honor to see the fossilized alien skeletons with his own eyes.

The color of this skeleton is different from that of humans and the alien skeleton fossils originally discovered by humans on Mars. The whole body is reddish brown, and its main component is iron oxide. Huogu deduced that these intelligent creatures use iron as their bones.

To support the body instead of calcium, after 800 million years, the iron element in the skeleton gradually combined with oxygen, thus becoming the current skeleton composed of iron oxide.

Perhaps because the lava came suddenly, the skeleton was relatively well preserved, with basically no major damage except for some cracks.

The skull has a pair of goat-like curved horns, and behind it is a pair of bone wings similar to those of a bat. It is about three meters tall. The spine is very similar to the human spine, but there are also differences. The lower end of the spine continues to extend out, forming a

Spinal tail.

The same limbs, a pair of hands and a pair of feet, have six finger bones, and the same is true for the toe bones.

The bones have a hollow structure inside, which is similar to the bones of birds. In other words, the wings on the backs of these intelligent creatures do have the function of flying.

"Why does this creature remind me of the devil, who is defined as evil in Western mythology?"

"Fortunately, it is not an excavation activity organized by an international organization now, otherwise some terrorists might jump out and blow up this skeleton and this cave."

At the beginning, at the International Space Center, the interference of religion was quite a headache for Hogu. He had no choice but to prove that aliens existed, which meant that humans were also born from nature. Who still believed in their claim that "God created humans"

?

"But then again, why are these intelligent creatures on this planet?"

"And why would you descend to seek death when the planet is still in a molten state?"

The time span of 800 million years is too big, and Huogu can no longer express the situation at that time.
Chapter completed!