Pollution throughout the territory

That is, airplane.

In this world full of ice and snow, a plane full of modern technology was parked on a square ridge two kilometers away from Xia Ren and the others. The surface of the plane was painted with the same white paint as the surroundings, which made Xia Ren almost die. Ignore the past.

Xia Ren and Lanaya looked at each other and decided to go and have a look no matter what.

The person who drove the plane over was most likely Professor Ford, but after such a long time, the temperature in the mountains at night was minus 40 to 50 degrees Celsius plus the wind speed of more than ten meters per second was enough to freeze any creature that dared to stay outside. They couldn't tell whether Professor Ford had encountered an accident, or whether the worst outcome was... whether he might have turned into a monster.

But that plane was their only hope for survival, and they had to try no matter how risky it was.

With Lanaya's help, Xia Ren got back on the sled and came to the foot of the ridge. However, the rock wall here was almost vertical and there was no slope to climb at all. They had to drive the sled around the rock wall. Walking, trying to find a path.

Half an hour later, they finally saw a... staircase!

"Could there have been humans living here before?"

Ranaya looked at this long and narrow staircase, extending upward at a forty-five degree angle to the end of her field of vision. She couldn't believe her eyes.

Xia Ren looked at the size of the stairs and frowned slightly.

There was no snow on the steps, and there were traces of weathering all over them. Each step was about forty centimeters high, which was seriously inconsistent with the human figure. He once again recalled the mirage he had seen yesterday morning, that magnificent boulder. The size and proportion of the city fit perfectly with this staircase.

That city was probably built by the monsters buried in the snow.

"No matter what, let's go up and take a look first."

Xia Ren said.

They left the sled in place. The huskies were strictly trained not to run around unless there was an emergency.

Xia Ren refused Lanaya's help. The stairs were very long. She was not injured and had a greater chance of survival. Xia Ren had to let her conserve her strength.

He had at least three broken ribs, so he had to endure tremendous pain every time he took a step forward. At the same time, he had to make sure that every step he took was steady. Otherwise, if his foot slipped at such a height, he would be thrown to pieces. .

It took an hour and a half. Although Xia Ren's physical fitness had improved after staying in the ice field for more than a month, he was still sweating all over, mostly in pain.

Ranaya also felt uncomfortable. The high altitude made the air here thinner, and she had to breathe harder to ensure the oxygen supply to her body.

When the two finally walked up the last step and came to the huge rock platform, they were already so tired that their faces turned pale when they saw the plane parked not far away. However, neither of them cared about their fatigue and looked at The scene in front of me was so horrifying that I was speechless.

Farther away from the plane, stands a... city wall!

The city wall is about thirty meters high and made of rocks four to five meters long. Even though it is relatively far away, they can still see mottled traces of time on its surface. They don't know how long it has been there.

Xia Ren can be sure that what is before them now is the mirage they saw yesterday morning!

Even Ranaya can't comfort herself that this is the work of human beings, and no sane person can even agree that this terrifyingly majestic building, this building that has never been recorded in history, this building even with Buildings that are difficult to achieve even with modern technology will be the work of humans!

Xia Ren barely suppressed the shock in his heart and came to the plane.

The glass cabin door with only two seats was closed. It didn't take much effort for him to find the switch and turn it on. However, faced with this pair of complicated instruments and various densely packed buttons of different colors, Xia Ren, who had never flown a plane before, was dumbfounded.

"Can you fly a plane?"

He asked Ranaya somewhat stupidly, who shook her head repeatedly.

"Then there's no way."

Xia Ren carefully inhaled to avoid touching the injury, and slowly climbed down from the plane.

"The plane didn't seem to be damaged, and it should have landed normally, but there was no trace of humans around, and there was snow below. No one could stay overnight below without any camping conditions, so we had no choice but to go in. "

He said while looking at the majestic city walls.

They had to find someone who could fly a plane.

Lanaya was obviously afraid of this huge stone city, but as long as she was with Xia Ren, she was not afraid.

This rock platform was probably just a side entrance to the city, so the entrance was not too big. The two held hands and walked in nervously.

Only when inside these buildings can humans realize their own insignificance.

The clear light projected from the ice clouds above illuminates the road. Surrounding the two people are rocks tens of meters high. If the scientific research team is here, they can definitely deduce the approximate time of the city's existence from the conditions on the rock surface. , but unfortunately neither of them is engaged in research, so they only feel a strong sense of vicissitudes of life.

Thanks to the previous mirage, Xia Ren knew the basic situation of the building in advance. Most of the walls inside were in the shape of "zheng", like a spliced ​​maze, endless. Before they reached a corner, they used the broken rocks at their feet. Place a marker so you don't get lost.

They didn’t know how long they had been walking, but they began to see different buildings, such as ink-colored stones stacked together to show irregular geometric shapes. The two of them were frightened by the sight, and quickly speeded away; there were also cones and pyramids with outlines. and trapezoidal smaller independent buildings, individual cubes, cube aggregates and other rectangular structures, in addition to the strange five-pointed star-shaped buildings that Xia Ren saw in the mirage scene, with long circular arch bridges passing through them. Through them, I don’t know where they are connected to, nor what their purpose is. This city seems to be a patchwork of various buildings, which look simply bizarre, but it may be that Xia Ren and the others cannot fully understand these buildings in their own wisdom.

The further you go inside, the more things you can't understand. The stone walls around you that have been exposed to the cold wind for a long time are all devastated. It is estimated that they were built a long time ago - maybe hundreds of thousands of years, or even tens of millions or hundreds of millions of years ago. Over the years, they were once glorious, and the creatures that built them moved back and forth among them, exuding vitality.

But now they are all in ruins.

Xia Ren also saw decorative carvings on the stone walls that were slightly better preserved. They were obscure patterns composed of lines, as elusive as the existence of this city.

While they were stopping to look at the carvings on a wall, a voice suddenly came:

"Are you, humans?"

Thanks to Wu Xianxi for the reward!