Apocalypse: I watch a survival game in a safe house

He frowned, knowing that something might exist underground that attracted the mechanical civilization.

Zhang Yi asked everyone to enter the shadow space to prevent others from getting into danger on the ground after he left.

Then open the dimensional door and dive into the depths of the earth!

Dive, dive, and keep diving.

He wanted to know what existed under the earth. The exploration function of the intelligent system was always turned on. If there was any special energy reaction, it would definitely be detected.

Soon, Zhang Yi dived to a depth of 20,000 meters underground.

The exploration system did not respond at all. Zhang Yi frowned. At this depth, he had already encountered a group of centipedes under the Qinling Mountains.

Continue down.

Thirty thousand meters, forty thousand meters.

This is the depth that Nash Country was originally at.

Fifty thousand meters!

If you are not a mutant with spatial abilities, you will not be able to reach such a depth by your own ability.

This is also why mechanical civilizations have to dispatch mechanical legions to dig.

The thick rock and soil layer can block almost all signals, making it difficult for them to spy on the secrets they want to spy on.

After more than 50,000 meters, Zhang Yi's eyes suddenly opened up and he appeared in a huge hole.

This is a huge underground cave.

cave?

No, using the word "cave" to describe it seems a bit small. This is clearly a huge underground world!

Zhang Yi verified his guess and found that there were indeed some special things here.

In the familiar underground world, blue mist is flowing in the sky. Although there is no sun, it has a special lighting system.

He hung high in the air, overlooking the world below.

There really is an underground civilization here!

It's just desolate and dead silent.

What caught his eye was a huge ruin. The size of the city exceeded Zhang Yi's imagination. The ruins in front of him alone were as big as hundreds of Tianhai cities.

A large number of buildings have long been weathered, and only the outline of the city can be vaguely seen. It is unknown how many years it has gone through.

Zhang Yi calmly observed everything, but did not find any living things.

He carefully descended and soon arrived above the city.

This is a spiral city with very strange and huge buildings.

Zhang Yi calculated the size of the house and compared it with the size of humans. He finally concluded that the creature living in it should be about twice the size of humans.

There was dust everywhere. The underground world was dead silent and there was no wind, so the dust on the ground had accumulated to an unknown amount.

Zhang Yi inspected the architectural structures of these houses and concluded that they were not made of earth or stone, but of a special alloy.

According to the system's detection, its existence time has exceeded 20,000 years!

Fatty Xu, Yang Xinxin and others also emerged from the shadow space and explored this new world with Zhang Yi.

"Another underground civilization! But it looks like it's extinct."

Fatty Xu looked here and there, but all he saw were ruins.

Finally, he sighed helplessly: "Nothing is left!"

Twenty thousand years is enough time for the remains of a civilization to disappear into history, leaving nothing behind.

Zhang Yi didn't give up.

What the mechanical civilization has been looking for must be very precious.

There must be some traces left in this place.

"Keep looking! I believe that what the mechanical army has been searching for with so much effort won't disappear so easily."

They continued to travel through the huge city, but apart from the ruins of buildings, there was indeed nothing of value left.

Yang Xinxin said: "This is a living area, so of course daily necessities cannot be preserved. But I believe that if a civilization is about to disappear, it will definitely find a way to preserve traces of its existence in a special way."

Zhang Yi thought for a moment and said, "This place is huge, a vast country. If we use conventional methods to search for it, we simply don't have enough manpower."

Yang Xinxin replied: "I have a way to try."

"any solution?"

Yang Xinxin said, "Destroy everything here! If this prehistoric civilization wanted to preserve something until today, they would have used the safest method to preserve it. It wouldn't be so easily destroyed."

"So, let's just flatten everything and see what's left."

Zhang Yi thought about it and felt that what Yang Xinxin said made a lot of sense.

Something that even mechanical civilization covets must be a civilization far beyond that of humans.

Then their preserved items will most likely not be destroyed by Zhang Yi and his team.

"There's no better way, so let's do it!"

Zhang Yi chose the simplest method, and directly took everyone to fly high into the sky. Then he increased his strength to the maximum, aimed at the center of the city, and released a star-piercing cannon!

Pitch-black energy emanated from Zhang Yi's palm, but it was not intended to penetrate. A black line went straight to the ground from a height of several thousand meters, and then a huge energy wave swept in all directions!

The ruins of buildings that had not been completely destroyed after tens of thousands of years were also scattered like dust and shaken to the surroundings.

The entire ground sank hundreds of meters, and nothing could hide.

Under this attack method, a special structure was actually revealed under the ground.

When Zhang Yi and others arrived here, they saw that it was a huge underground laboratory.

The entire structure is made of special black crystals. When you look at it up close, it is hard to believe that it is a relic of history.

Because its surface has almost no traces of history and is as smooth as a mirror.