Zhang Feng was a little bored and tried to take out his mobile phone to play, but found that there was no signal and he could only play stand-alone games.

Although the battery is very scarce here, it is enough to play with a mobile phone for Zhang Feng, and he can play for a few days with a full battery.

Those experts are too busy to rest. They don’t know how to get tired. They are all excited. They are tired from walking on the way, but they can stand for so long when they get here. It’s been seven or eight hours, and they are still working. .

Perhaps this is the same as women. Women usually walk around easily and get tired, but if they go shopping and sweeping goods, they will not feel tired after walking for a day.

They lived here for a few days, all the equipment was brought in and stacked in the cave, which became a base again.

The old beggar really brought the space suit, as well as the diving suit, small robots and drones.

The drone acted first. It flew over from here, and could actually fly in. It flew over the ruins, and the images returned let them know more about it.

Then a group of experts began to discuss and research.

They saved a lot of time and adventure if the drone went in. So far, no unknown creatures have been found, no anger was found inside, and the air quality is the same as here.

After a few days, they have decided to go down, how to go? You can only fly down and get a glider to fly over.

Zhang Feng came to take care of this matter, and took the rope over, and after they were tied, they could pass.

\"Why don't I go!\" Yan Wang came over and said.

Zhang Feng is tying the rope and has a parachute on him, so he won't fall to death in case of an accident.

\"My weight is lighter than you, no one fits me!\" Zhang Feng said.

The king of Yama said: "I was an airborne soldier!"

\"Is it useful here?\" Zhang Feng pressed directly.

Hades did not speak.

\"Don’t make money, you can go together one or two, this glider can carry hundreds of catties, anyway, it’s down!\"

Said Professor Fei over there.

A smile appeared on Yama's face.

\"It's cheaper for you!\" Zhang Feng said.

He said while tying the rope: "I was the number one airborne back then!"

\"Is it useful? What happened back then, did you bully me not back then?\"

Zhang Feng said angrily.

\"Yes, why did you bully you?\"

\"Then you bully!\"

Perhaps the only thing that King Yan could bully Zhang Feng, other than that, he was the number one paratrooper that year because he didn't meet Zhang Feng, otherwise there would be nothing wrong with him.

They all put on space suits, brought oxygen cylinders, weapons, and so on. Everything was ready to stop when they pulled the glider and jumped, and the glider flew into the distant ruins.

Behind the glider is a long rope with one end already fixed.

Before Zhang Feng jumped down, he didn't hesitate to die. He didn't think about going out alive when he came here. If he could die here, he would be lucky. He would be the first person in the world, and Hell was the second.

People who died on the expedition before are not counted.

This is Zhang Feng's idea.

At this moment, the two of them were holding the glider tightly, and the goal was still far away. Don't look at the ruins from the hidden mountain cave, they were far away when they went personally.

Anyway, it took them ten minutes to arrive. They stood on a tall building, found a solid boulder and tied a rope. The rope was several kilometers. The old beggar had prepared 10,000 meters, and there were a few more. Rope.

The people above the cave saw them land safely with binoculars, and the rope had been tied, and then the old beggar let the person go down, and he would go, let the combatants first determine whether it is safe in the ruins.

The buildings were built with a material they hadn't seen before. Looking down from the top of the building, the ground is almost invisible to the building that is a kilometer high.

After the old beggars arrived, Zhang Feng began to act, starting from this building and going inside the building to see what's inside the building.

\"Everyone, be careful, follow behind, can't act alone, Li Jian, you take a few people and wait on the roof!\"

This is the arrangement of Yan Wang, he is always very cautious, if it is Zhang Feng, let's go together.

Everyone is wearing space suits, which are heavy.

There is no stairs here, but each floor has a small platform of several hundred square meters, which is like a helicopter landing pad. Zhang Feng hung a rope from the top of the building and stood on the platform. Several people entered carefully. The door was The.

When I went in, it was very spacious and it looked like a human living environment. Zhang Feng said: "This is where we humans live. It's just that some things are different. I don't know what it is!"

There are a lot of unknown furniture in the house.

\"Is it a prehistoric human?\" Yan Wang said: \"Look, there are tables and sofas, some years old, there is no dust at all!\"

\"There can be no dust in this environment, and there will be no problems for ten thousand years!\" Zhang Feng said: \"It is certain that humans have lived here!\"

A few people were a little excited. If they were really prehistoric humans, then they would post. Everything here is very advanced, but it can't be used anymore. The building materials are very good.

\"Let's go and don't look out!\" Zhang Feng said.

Highly civilized humans in prehistoric times!

They continued to go down and watched each floor. They were shocked when they finally reached the ground. The aircraft was parked on the ground, and the aircraft happened to be parked on the platform of each floor, which was the apron.

This aircraft is already very advanced, the old beggar is very excited, and now he gets what he wants!

"Gentlemen, we are witnessing the beginning of an era!" the old beggar said excitedly.

\"Let’s see if I can get out alive!\"

Zhang Feng broke cold water for him.

In other words, if you can go out this time, can you come in? Everything is uncertain.

Then they all saw a lot of amazing things. It is indeed a human being here, perhaps a race different from them, but unfortunately they didn't see a photo, so the developed civilization didn't have a photo left? I don't understand.

Who are they? Did they rule the earth at that time? Not mean?

Forced to be here to rebuild such a good society, then if they are on the surface of the earth, they will be more developed.

Can it be understood this way?

\"Do you need a space suit?\" Zhang Feng asked.

\"Good!\" said the old beggar.

Because the space suit has an air detection device on it, it shows that it is not poisonous.

Everyone removed their space suits and their bodies became lighter and moved faster. After a few hours, they discovered that there were really no living things here.

Why is there such a situation?

Zhang Feng said: \"Maybe they were called to a place collectively, and then they couldn't come back!\"

\"Yes, everything is normal at home!\"

The old beggar said: \"Let’s go ahead and see!\"