Boom. ”

Falling from a high altitude and falling to the ground covered with sharp gravel in one fell swoop, Chen Shi rolled on the ground several times in a row, and then stood up.

Looking around, it was the same as what he had just seen in the sky, more desolate than the end of his previous parallel world, and it was no different from the surface of Mars.

But of course this is not Mars, if it were, he would have died of lack of oxygen.

Although the oxygen here is very thin, it still exists, but he doesn't know what other gases are in the air, Chen Shi didn't dare to test it himself, and really took off the gamma suit.

“……”

Looking around left and right, the bare ground was basically empty except for the suspended red and black pyramid, and when he looked up, the black vortex in the sky was definitely the most eye-catching area, and that should be the place he walked through?

So, the test on the big pit before, swallowing all the electromagnetic waves, just because it was this kind of time and space shuttle?

So, did the other four potholes also break through the space-time passage?

Chen Shi pondered for a moment, if he wanted to return to the earth, he was afraid that he could only go through the space-time channel, but the location of the space-time channel was a bit embarrassing, how could he go up at a height of thousands of meters?

There is no girl by his side here, and he can't use supermental power, if the height is about dozens of meters, he can still jump with all his strength, a few kilometers is too far, and he can't wear a gamma suit.

"I can only look over there."

Chen Shi looked sideways, and in the distant skyline, the red and black pyramids were so eye-catching that they could hardly be ignored.

After paying attention, Chen Shi walked briskly over there, he didn't dare to continue to delay here, the endless reddish-brown gravel land also means that there is no water source and food here, how long can he survive? After a maximum of 24 hours, he will have a significant reduction in physical strength due to lack of water, and in just two or three days, he will lose water and die.

No, it probably won't take that long.

Suddenly, he realized that he had overlooked a problem.

Here he can't pee.

Yes, urinating requires contact with the outside environment, and if you don't know this, it is extremely risky to let the body come into contact with the outside world.

But the more he thought about it, the more Chen Shi felt a little relieved.

"That's really ......"

Chen Shi's head was big for a while, and he hurriedly quickened his pace, almost turning into a black shadow and running forward.

Don't look at the red and black pyramid seems to be very close, but in fact, the distance is more than ten kilometers, because of the thin oxygen, Chen Shi is more tired than usual, and the distance is gradually approaching, and he is panting violently, which is absolutely impossible on the earth with sufficient oxygen and Xindi-36.

"Wait...... There's probably less oxygen in this place than I thought. ”

Chen Shi suddenly thought of one thing, the gamma suit worn on his body can not only filter poisonous gases that are harmful to the human body, but also automatically balance the oxygen supply, that is, even in the thin air on the plateau, the partial pressure of oxygen is not enough, it can automatically extract the oxygen concentration for him to breathe, avoiding hypoxia. At high levels of physical activity, oxygen levels increase even slightly.

He'd experienced it before.

He almost never experienced a lack of oxygen.

Now even the gamma suit is barely enough to collect oxygen, what does this mean? This means that the air here is either too thin or the oxygen content in the air is so low that the gamma suit is unsustainable.

Considering the speed of the landing just now, Chen Shi felt that the gravity and air pressure here were similar to those of the earth, so it was likely that the oxygen content in the air was very low.

How low is it?

Is it 15%?

Or less than 10%?

Without a scientific instrument, Chen Shi didn't know, he could only know whether it was good or bad based on his body's reaction. All in all, it is true that vigorous exercise is much more tiring than on earth, but as long as you stand still, breathing is not too difficult, a bit like the breathing rhythm of brisk walking.

Therefore, even if the temperature in this hellish place is about the same as that of the earth, it is impossible for ordinary humans to survive in this place without the help of tools.

It's here.

Chen Shi raised his head and stood at a distance not far from the red and black pyramid to observe, and he could feel the shock brought by this huge artificial structure. To say that on Xindi-36, he has seen a lot of exaggerated artificial buildings, but in terms of shock, this red and black pyramid can still rank in the top five.

Breathing slowly, Chen Shi climbed up a gravel hill, but was suddenly stunned.

The low hill in front of him was actually aimed at the direction he had come, and in the direction ahead, it became much steeper, and hundreds of meters down was a small basin of several kilometers.

If it's just a basin, it can't make him stunned suddenly, but in the basin, there are ruins?

It was the arched stone gate that was buried by the gravel, but it was still visible, and the strange stone statues and road traces carved out, which seemed to be a certain city?

By the way, the red and black pyramids suddenly appeared on the earth, suddenly disappeared, and opened a space-time channel, so what is the purpose? Is it just to come to a strange planet that is deserted?

If this is really an extraterrestrial planet, there must be human beings.

This human smoke is likely to be extraterrestrial life.

Chen Shi slid down the steep slope and walked quickly into the area where the ruins were located. Getting closer, he could see the appearance of this ruin more clearly, those stone statues that were buried more than half by the gravel, of course, were not human statues, but statues of strange creatures, Chen Shi had never seen them, if they were really resurrected, they were similar to xenos, anyway, they were all hideous and terrifying.

Such stone statues are not uncommon in this ruin, but in addition to the towering semi-circular arches, made of unknown stone, which have been eroded by the wind and sand, and the meaning of which is unknown.

He walked through the ruins as if an archaeologist had arrived in an ancient ruined city, with a hint of solemnity in his daze.

Gradually, he came to the center of the ruins.

It was a half-collapsed building, with extremely thick stone pillar statues, but most of them collapsed, causing the roof to tilt with it, and when you walked inside, there was no gravel on the ground, and there was nothing useful to see.

Perhaps he had seen too many similar things in Xindi-36, Chen Shi was not very interested in it, and walked around here a few times, estimating that the history of this ruin is not thousands of years, it is impossible, and thousands of years have passed, what is the meaning.