Now, except for the lizardmen he encountered at the beginning, as well as the black wolf clan that was destroyed and the sheep tribe just now, Guo Sen found that the rest of the civilizations knew what fire was for.

The dwarves in the cave were no exception.

It's just that in front of Guo Sen's eyes, the more than ten tiny flames prove that this group of dwarves has an alternative civilization.

They seem to have made the "lamp".

Or rather, something similar to a candle was made.

In Guo Sen's sight, under the burning flames was a black rope, while the other end was soaked in water-like lamp oil.

The lamp oil was soaked in a metal bowl that was not very delicately made, and it also told Guo Sen that the dwarves also possessed a very good smelting process.

lamp, which belongs to the new technology after the development of "fire".

It works the same way as a torch, but you don't have to worry about it burning out at any time, you just need to fill it with oil every once in a while.

This undoubtedly makes full use of the characteristics of "fire", and can be used in a wide range of fields.

For example, take it to deep mines in search of ruby-like ores.

Rather than focusing on things like hunting and fruit gathering, the dwarves didn't seem to have shifted their focus to things like hunting and fruit gathering, but instead used their trade with the sheep people to save this time and focus on mining and developing the tribe.

They know how to use resources better than any race before them.

Otherwise, there wouldn't be such a large number of people, right?

Within Guo Sen's line of sight, there were nearly six or seven hundred dwarves squatting on the ground and talking something.

This also includes women and children, and it seems that their population is really large.

He moved his mind and used his abilities.

“……”

"Chief, we've got enough food from them to dive deeper into the area."

"That's right, Chief, these jerky are enough for us to eat for a longer period of time, and if we find more Flame Stones, they'll give us more food!"

"However, we can no longer go any further, and there are brothers who have disappeared in it before, in case ......"

"Yes, Chief, I think it's okay to keep it as it is."

Guo Sen immediately heard their voices.

As they had guessed, the dwarves seemed to have established a cycle in their civilization of using gems for food and then using food to find more gems.

This may seem like a virtuous cycle, as long as the sheep people like gemstones, the dwarven mining industry will gradually become more developed, and their race will become more prosperous.

As for the sheep people, they will breed more animals, mine more rock salt, and can also progress.

The premise is that the sheep can maintain a constant interest in gemstones.

However, this is a false proposition.

Guo Sen couldn't know what the meaning of the sheep people who couldn't speak was, otherwise, he could also judge for these dwarves whether to continue in the future.

"Don't talk about it, I have my own judgment. If there are no objections, we will now go down and look for more Flame Stones. The burliest dwarf in it interrupted the cacophony of the crowd, and the strong voice seemed unusually presence.

"Understood!"

The answer was mixed, but they had to obey the leader's words.

The dwarves rose to their feet, and when they came out of the cave, they came to a cave hidden at the bottom of a boulder with lamps, jerky, sticks, and a large number of metal pickaxes.

Guo Sen suddenly felt that what these dwarves were doing was not what a tribe with a mature civilization should have.

How can all the people who fall to the mining have to go?

Why don't you do something else? What if you pick some wild fruits and build weapons?

Still, his gaze followed them into the mine.

The cave was not wide, the diameter of the tunnel was only about two meters, there was no glowing moss on the rock wall, and the dwarves could only walk slowly down a not-so-steep slope with their lamps.

Guo Sen looked at the rock wall and found that it seemed to be a natural formation, and it had been developed by the dwarves to become so smooth and flat.

The further the dwarves went, the fewer traces of the tunnels that had been intervened by humans, and in the end, only a large number of stalactites and other landforms remained.

After a while, the dwarves finally stopped, and Guo Sen found that they had come to a vast underground space.

Unlike the Sheep Caves, this space does not have an extremely high ceiling, nor does it have a single flat ground, but only countless boulders scattered as far as the eye can see. And in the corner of this space, there is a tunnel that seems to be formed naturally, extending further down, which may be what the dwarves said "deeper"?

Guo Sen noticed that at the rock wall of this huge space, many huge rocks with a diameter of nearly five or six meters had been shattered, and something like gravel was scattered all over the ground.

Truth be told, this mine is completely unsafe.

All it takes is a few earthquakes that are not strong, and I believe that this place will soon become the grave of this group of dwarves.

However, it is Guo Sen's own sphere that can control the earthquake, as long as he doesn't deliberately make it bad, these dwarves can still mine here until they grow old.

Do those gravel-like stones really contain the so-called "Flame Stones"?

Guo Sen decided not to go out of here for the time being, he wanted to take a good look at how these dwarves were mined.

When he was on that land before, he didn't take a closer look at what kind of work mining was, but now that he finally followed, it was better to take a good look.

What if we can bring this advanced technology to other civilizations in the future?

This is very necessary.

The dwarves immediately scattered in all directions, and in small groups of twenty men, they lit torches with lamps and placed them at their sides, and began to pound on the rock wall with metal pickaxes.

The tinkling sound caused an echo, making this otherwise quiet space suddenly lively.

Guo Sen watched them carefully.

The rock wall seemed to be quite thick, and Guo Sen saw that they had not only metal pickaxes, but even metal hammers and wedges to destroy the stronger rock walls.

The rocks were constantly peeling off, but Guo Sen knew that the red "Flame Stone" was still buried deeper.

Why don't you get them all out?

Guo Sen knew very well that the rock formation they were in did not contain much red gemstones.

The fact that they might have a Flame Stone in the depths was completely conjecture, and Guo Sen checked it, and there was almost nothing left in the depths.

Oxygen is the worst enemy that restricts this dwarven mining team.

"Chief, Chief!" After working for a few hours, the dwarves seemed to be a little out of breath, and after digging for so long, they didn't even see the appearance of the mine.

"Don't stop, keep going!" The leader was in command, and he understood the situation.

Our ancestors have dug this place many times, and they are repeating the process, is there still a flame stone in this mine? No one can be sure.

Now, can we only go to the deeper mine?

But......

"Chief! We felt that we had to go deeper, or who knows......"

"Woooooooo

A roar that seemed to be from a wild beast suddenly resounded through the mine!