Indeed, what these two people said is right, although one is Langyuan Immortal, and the other is beautiful and flawless.

But at the moment, it is difficult to have real evidence, so I have to give up.

Moreover, what attracts everyone's attention the most at this time is not the four stone walls and the four giant stone carvings on the stone walls......

......

Let's talk about the roof of this stone chamber first.

In fact, there is nothing to say about the roof of this stone chamber, it is just a flat river, and it looks like a whole boulder polished out.

However, in the very center of the ceiling, there was a triangular meteorite, the size and shape of which was very similar to the one that was located at the bottom of the great pyramid and suspended the six copper tripods with a faint beam of light. However, the previous one is wide at the bottom and narrow at the top, which seems to be an upright pyramid, while the one in front of me is just the opposite, and it looks like an inverted pyramid.

At first glance, it seems to be rigidly embedded in the ceiling, and like a ceiling chandelier in the hall, the entire stone room is fully illuminated......

.......

At this moment, the group was standing on the edge of this stone chamber in unison, not daring to take another half a step forward.

It's not because there's something terrible in the center of this stone chamber, but it's because of the central ....... of this stone chamber Nothing?!

Even, even a piece of flooring....... None of them!

Yes, although this stone chamber is large, it only has a corridor around its circumference that is no more than a few meters wide.

And the inner floor of the entire stone chamber is completely a huge pit that is bottomless!

At first glance, it looks as if someone has been digging deep into the room.......

.......

"This, this, this .......?!" Looking at the bottomless huge pit in front of them, the group couldn't help but be shocked!

Especially Chen Fei, at this time, he had already concluded that the terrifying shouts he heard along the way were from the bottom of this hole!

And at this moment, to his ears, the tearing cry was no longer nothing, but as if someone was crying and mourning, and the sound was torn!

However, at the moment, except for Chen Fei, everyone else still can't hear anything, I don't know if it's because Chen Fei's hearing is really good, or because there is something wrong with other people's ears.

However, although no one else heard any terrifying sounds, their little hearts were not idle!

Because this huge pothole in front of me is really weird!

At first glance, it has only three sides, and it is wide at the top and narrow at the bottom, and it is exactly like the meteorite on the ceiling, which is exactly the shape of the inverted pyramid!

Pyramid?!

Inverted pyramid?!

My God, this group of people offended Lei Feng in some world, and now they are completely connected with this pyramid that symbolizes supreme royal power.......

.......

Everyone first walked around the edge of the stone chamber in fear, but did not find anything abnormal or unusual.

However, no exit was found!

However, on the side close to the diamond-shaped stone carving, a stone staircase leading to the bottom of the pit was found.

Obviously, if you want to go on, this stone staircase is the only way.

"This ...... Are you still .......?" asked Lao Zhang, and asked with a little helplessness.

Indeed, according to the previous assumptions, the exit to the outside world could not have been underground.

In other words, even if you can go down at this time, it is only closer to the magma or the Hades Palace.

"Hmm...... ...... down," Chen Fei nodded and said, and he was also a little helpless.

Because in his mind, as long as he goes on, there is still hope.

Taking 10,000 steps back, even if there is only death ahead, it is better than staying where you are and waiting for death.

Perhaps, at this time, for everyone, all the way to death is the best destination.

Besides, who the went all the way to life......

......

Since the whole pothole is in the shape of an inverted pyramid, the slope is relatively large.

In this way, the stone steps were also relaxed, and the group walked very smoothly.

It's just that the further down it goes, the colder it becomes, and Hachi even shiveres all the way.

And the 'eroded qi' is also getting heavier and heavier, and it seems to be deprived of oxygen.

But the saddest thing was Chen Fei, to his ears, the tearing cry had turned into a howl, and it was a heart-rending howl!

Sadly, there was still no reaction from the companions.......

.......

"Huh, what the hell, ......?!" Ye Qiu suddenly stopped and said.

Indeed, looking down at this time, it is no more than 100 meters at most.

So, everyone quickened their pace, although they all knew that there would be no good fruit to gnaw on......

......

As expected, the bottom of the pit was so narrow that who made it the shape of an inverted pyramid.

However, although it is narrow, there is always a few tens of square meters.

The bottom of the cave is very flat, like a polished stone platform.

But after careful consideration, everyone found that the so-called stone platform at the bottom of the cave did not seem to be made of stone, but still looked like some kind of metal that had never been seen before, so that when people stepped on it, they made a dull sound?

What people didn't expect was that in the middle of the bottom of this cave, there was a ...... A metal pipe .......?!

Yes, it did look like a metal pipe, and it was a metal pipe that stood up vertically, like a half-chimney......

.......

"Hey...... What the hell is this....... It's weird......." Wan San said as he touched his chin, as if he was quite puzzled.

And what he wondered was that this ....... How is it possible to have metal products?

In fact, not only here, but also not just in front of you, looking at the entire underground space, when everyone saw the giant pyramid for the first time, they already had this kind of doubt.

You must know that whether it is the pyramid or the stone chamber now, a discerning person can know at a glance that it is an ancient ruin, and its history is not 10,000, but 8,000.

Even if people had already mastered some smelting techniques at that time, they should have been in the initial stage or at a low level, and it is difficult to imagine how they did it.

"Is it possible...... Isn't all this really created .......by humans?" Er Lei said in horror.

"But if it's not human....... ....... again?" Ye Qiu was also quite puzzled.

But it can't be helped, even if all this was created by the aliens, there is no evidence to prove it.

So, for now, let's take a solid look at the metal pipe......

.......

This metal pipe is about 20 centimeters in diameter, and the part that is exposed to the ground is about 1 meter.

That's right, it's firmly anchored to the ground, and it's as if it's embedded deep in the ground.

"This .......???" the crowd really couldn't understand it.

"What the is this singing? Could it be a chim.......ney sticking out of the ground?" said Lao Zhang.

Indeed, as I said earlier, this metal pipe looks like a chimney sticking out of the exterior from any angle.

However, at this time, Chen Fei never thought that this would be a chimney!

For he clearly heard the tearing and howling that followed all the way....... It was in this metal pipe....... Outgoing .......