The rhizome system spread into the few discovered caves, and Huo Gu thought that since he wanted to explore the caves, he would simply explore the other caves as well.

These caves are deep and meandering, full of mystery, and the walls of the caves can be seen with colorful and mysterious-looking glowing crystals.

Of course, this is only true for humans who are still in the naked world.

Hogu is no longer human.

"Oh, I see, this is supposed to be the channel where the lava once flowed, and the high temperature refines the silicon, which is then mixed with trace amounts of radioactive elements in the formation."

"The strongest evidence is that the rock wall is made of pyroxene rich in metallic elements......"

Huo Gu, who had resolved to this, was suddenly stunned for a while, and it took a while to react, and he looked at the crystals on the cave wall in horror, as if he was looking at a group of evil ghosts crawling out of hell.

"! There's nuclear radiation in this place?! ”

"Rhizome system, thickened hole ** rhizome epidermis."

Hogu issued an order to search for elements such as lead in the area covered by the rhizome system, which can absorb radiation and add them to the epidermis of the rhizome.

After a bit of scrambling, the exploration continued, and the rhizomes gradually advanced deeper into the cavern.

"Huh? The channel has widened? ”

"Don't worry about it for now, keep going deeper."

The deepening of the rhizome continues, and is completely reversed from when it was first entered, when it was first entered, the passage became narrower and narrower, but now it is getting larger and larger.

As if at the end of the passage, Hogu could clearly feel through the rhizome that there was an air flow caressing the epidermis, which meant that the place was outside, or that the inner space was large enough to form an air current.

Now Hogu is exploring downwards, and it is clear that he belongs to the latter.

"Won't you...... Could it be that there really is an underground world?! ”

The rhizome spread out of the passage, and Hogu's vision also left the passage and saw the view at the end of the passage.

Big, indescribably big, there is no end in sight in front of you, no end in sight on the left, no end in sight on the right, no top in sight from above, as if you have come to a place like a netherworld land, the underground cavity that Huo Gu fell into from the sea before, compared to this, it can only be regarded as a small room at most.

"How did this come about?"

Hogu was a little suspicious that he had hallucinated himself, and the sight he had seen so far was once again beyond his knowledge, and theoretically such an environment should be extremely difficult to form, and even if it did, it would collapse after a period of time due to the heavy mass above.

But it's clear that this isn't just a cavern in the ground!

At this point, several other caves have also been explored, which is also an underground cavern, but compared to this one, it seems that an elephant is comparing the size of an ant.

Now there are two choices in front of Hogu, continue to go deeper, and stop there.

"Hmm...... There is no water in these underground caverns, so it will be more difficult to transport them if the distance continues to be extended. ”

Unlike rubber pipes in humans, biological pipes like Hogu, which are made of cells, need water for 'maintenance' in every part, which means that as the distance increases, the less water is transported.

"The other underground cavities haven't been explored yet, so why don't we pause the exploration of this huge underground space and set up an abiotic pipeline to transport water first, and I can also see what is in the other cavities."

"Well, that's all."

Hogu, who has a plan, shifts his perspective and switches to other underground cavities.

With the shock of the super-giant void before, these cavities that were now two to three times larger than the underground void that he had fallen in at the beginning could no longer make any waves rise in Huo Gu's heart.

Compared to the outside, the cavity is very 'barren', because there is no liquid water and lava to provide the substance, there are very few bacteria that can grow, and the cost of exploring the rhizome system is so great.

Hogu soon discovers the embarrassing fact that it runs out of organic materials.

The underground cavity is too big, and there are too few materials that can be collected, in fact, the organic materials should have been exhausted a long time ago, and the reason why they can last so long is because there are rhizome remains from time to time above, or gourds and titanium snails that are swept into the whirlpool, and Huo Gu has recovered these organic materials to survive until now.

"What to do? In this way, even if the rhizome system grows fast enough, the pace of exploration will be slowed down. ”

Hogu's gaze was fixed on the hole where the water had been gushing, the only passage it knew of connecting to the ocean above.

"Get out?"

"No, no, no, this is absolutely not going to work!"

As soon as the thought arose, he was denied by horror, and the psychological shadow caused by the indescribable existence outside to Huogu is estimated to cover the entire planet's surface in terms of area.

Until he has enough power to compete with it, Hogu will not consider appearing in the field of vision of that kind of guy.

"What if...... If it's another creature, will that guy attack as well? ”

Hogu came up with such an idea, and it would have been inspired by the fact that the organic raw material 'microorganism' is currently in a state of scarcity.

From the very beginning, the unknown creature seemed to have been keeping an eye on Hogu, ignoring the microbes in the ocean.

This shows that it can distinguish the difference between Hogu and other lifeforms, and it is precisely because it can distinguish this difference that it will turn a blind eye to other creatures that are so directed at Hogu.

It's pretty simple to think about it the other way around, as Hogu can use this to create creatures with their own abilities, allowing them to collect organic materials in the ocean and deliver them to the whirlpool.

Thinking of this, Huo Gu hesitated, because this is to create real life, not biological tools such as hoists and titanium snails, they will have the concept of 'me'.

This involves a lot of concerns about Hogu, which is why Hogu would rather have a delay in instructions than design some real macroscopic creatures with autonomous intelligence.

"Creatures like this are designed, can I still control their cells like I do now?"

"Will they still be following my orders? Will it attack me in turn? ”

"Limits are impossible, life will always find a way, and if one day this creature is born with wisdom and knows that I exist, what will it think of me?"

“…… According to the temperament of human beings, it is estimated that God will be hacked to death on the streets. ”

It sounds far away, but Huo Gu is already immortal, hundreds of millions of years are a flick of his fingers, and the distant problem is actually close at hand.

If you don't understand, you can understand it in another way, the summer vacation sounds very long, there are two months, in fact, you will find that it is the last day of the holiday, and the homework has not been touched.