Li Jianguo and others surrounded him.

"Are everything I saw just now true or false?"

Chu Ge felt lost, "Have you seen it?"

"have."

Li Jianguodao, "When I first entered the cave world, I saw the ancient ghost town, I was as shocked and puzzled as you. However, we have used all the high-tech means to detect it. I am very sure that what you saw just now was neither a mirage nor a mass hysteria, but a real city. Even the residents of the city are alive and have an extremely powerful life magnetic field."

"Then, what about them..."

Chu Ge licked his lips, still in shock, "It turned into gravel?"

"No one knows."

Yun Qianhe shook his head and said, "Perhaps, this is the mystery of the disappearance of the ancient people and the demise of the ancient civilization. As long as the answer is revealed, the origin of mankind will be the earth, the world of cultivation and the world of illusion and demons, and how the relationship between the three realms develops, there will be answers."

"The ancient ghost city will appear once every time, like an elusive ghost ship, and the time and place of appearance are closely related to the fluctuations of spiritual energy and the surging spiritual tides in the cave world."

Jiang Li said, "Now, the spiritual energy in the cave world is so rich and the spiritual tide is so surging. I believe that the ancient ghost city will appear soon. We should chase it immediately. Maybe we can see it appear again!"

Everyone hurried back to the all-terrain car.

Enter the coordinates and trajectories of the ancient ghost city in the past into a military computer, and add the latest coordinates as adjustment parameters to fuzzy predictions of the coordinates that will appear in the ancient ghost city next.

The light armored vehicles and all-terrain vehicles rushed out like arrows, rushing between the high mountains and ridges, just like riding the wind and waves between the ups and downs.

After more than an hour of bumps, they captured the traces of the ancient ghost town for the second time before the light armored vehicles and the all-terrain vehicles were about to fall apart.

This time, the ancient ghost town stands in a swamp covered with water nets.

It is obviously a magnificent city like a mountain, but it seems to be light and has no weight, and it is even suspended on the swamp in the void.

The water flow in the swamp is like being pulled by invisible force, sucked into the city by a trace, and injected with spiritual power, becoming the blood that maintains the movement of the city.

There are also countless ancient people floating and flying above the city.

Under the reflection of the rising sun, the mysterious and complex patterns on their bodies are shining brightly, blooming with colorful and beautiful brilliance.

This brilliance may form exquisite and indestructible armor.

Or it may form a sharp blade that swallows and spits the sun, moon, and opens mountains and splits stones.

Or form wings that cover the sky and the sun, helping the ancients to roam between heaven and earth.

Seeing this scene, Chu Ge couldn't help but stir the combat nanomechanism to its limit.

He also grew nano-winged wings, soared into the air, and flew towards the ancient ghost city.

But just like last time, he was immediately perceived by the other party as soon as he entered the scope of the ancient city's glory.

The ancient people stared at him deeply, and then the whole city was like a frightened bud, a TV with power cut off the power, and the collapsed sand tower became dim again, shattered, rising like light smoke, and annihilated invisible.

Chu Ge swooped down and plunged into the void.

He danced with his hands, trying to catch the last ray of ancient rays, but only grabbed a few illusory phantoms.

It seemed that the ancients sighed in his ears.

After careful identification, there were bubbles that were exploding deep in the swamp, with biogas rising, floating on the surface, and bursting bubbles.

"Me, am I wrong?"

Chu Ge turned around and said annoyedly, "I shouldn't disturb their tranquility. Should I let them last for a while?"

"It doesn't matter."

Li Jianguo comforted him and said, "When we first saw the ancient ghost town, we couldn't help but pounce on him like you. We had disturbed the tranquility of the ancient people more than once, but every time they were not angry or even responded, as if we didn't see us at all. When we appeared next time, we still looked calm and unhappy."

Chu Ge was stunned and said, "But they clearly saw us, otherwise, how could they collapse and disappear? If, if they were really 'living' and were disturbed by us so many times in a row, would they really have no reaction?"

"Maybe, we didn't bother them."

Li Jianguo spread his hands and said, "It's like ants cannot disturb any of our activities. Perhaps in the eyes of the ancients, we are all insignificant existences like ants. No action of ours is enough to disturb them. They didn't even really 'see' us. This is just our wishful thinking."

Chu Ge was stunned for a long time and shook his head and said, "If the ancients didn't care at all and didn't even see us, how could their city disappear inexplicably?"

"Maybe, it's not that the city has disappeared, it's just that it has entered another state, a collapse state that the observer cannot see."

Yun Qianhe said, "Many space physicists of the very association believe that the ancient city is not a city in the concept of three-dimensional space, but a city that exists between three-dimensional space and four-dimensional space. When the observer does not exist, it can project a clear projection in the three-dimensional space. However, once the observer pays attention to it, all possibilities will collapse into a point, and the ancient ghost city will disappear, appearing at the next peak of the three-dimensional discontinuous surface of three-point five-dimensional."

“…”

Chu Ge's eyes were full of question marks.

"Stop thinking about it, I have been thinking about it for three days and three nights but haven't figured it out. It's not embarrassing."

Li Jianguo patted Chu Ge on the shoulder, "Anyway, our target is not the ancient ghost city, but through the ancient ghost city, we can determine the latest coordinates of the cave in the cave. Let's go, and discover the ancient ghost city again, and then we can find the cave in the cave through the analysis of triangular data!"

This time, they were very lucky.

On a mountain top, I saw the entire process of the creation of the ancient ghost city.

On the top of the mountain, there was clouds and mist, and there was nothing except green pine and strange rocks.

But soon, the white clouds turned colorful, as if countless rainbow dragons were flying and rolling inside.

Immediately afterwards, these rainbow dragons soared into the sky and turned into dazzling fireworks in the air, like scattering flowers in the sky, fluttering one after another.

The sky full of flowers and rain and sunset outlines the silhouette of the city, becoming clear at a speed visible to the naked eye. In just half a minute, this mysterious city emerged from the so-called "discontinuous surface of three-point and five-dimensional space".

The city is still bustling with traffic and bustling.

The ancient people who were floating over the city to practice, meditate and fight were the same as before, and they did not feel like they collapsed and were reborn again and again.

Seeing such an incredible picture, Chu Ge felt thoughtful in his heart.

Perhaps, Yun Qianhe is right.

Ancient cities have always existed and have never been diverted by human observation or will.

They just exist in another higher dimension, more mysterious space.

It was like a human city built by the lake, casting a brilliant reflection in the lake water.

The fish in the lake were deeply attracted by the reflection, and tried to climb up to the water again and again to pursue the truth of the reflection.

But every time the fish rush out of the water, and the ripples stir up will cause the city to reflect and fragment in the lake.

It is not until the fish no longer try to rush out of the water to "observe" the reflection that the lake will return to calm and the reflection will appear again.

Then, the fish that only had seven seconds of memory would be attracted by the swaying lights on the lake and the laughter of people, and they would hit the lake again, smashing the lake water into pieces, causing the reflection city to "collapse" again.

That's right, in Yu'er's opinion, it was himself who caused the "collapse" and "rebirth" of human cities again and again.

But what they are striving for is just a projection.

No matter how the projection is broken, messy and condensed again, people living in the city will not feel any feeling, let alone feel disturbed.

Perhaps, occasionally when people are bored, they will lean on the railings by the lake and enjoy the beautiful scenery of fish rushing out of the water in the lake.

Even humans will look at the fish and find that the fish are all looking at the humans.

But humans will never regard the fish's gaze as a "observation" with wisdom, and will just smile.

And the magnificent and beautiful city of mankind is a place that fish will never reach.
Chapter completed!