As a three-dimensional creature, it was almost impossible to cross the barrier of the high-dimensional world.
It was just like how two-dimensional creatures couldn't perceive the existence of the three-dimensional world. Without the help of scientific theories or special technical means, what they could observe was the projection of three-dimensional objects on paper with the help of lamps or other light sources, or a series of "strange characteristics" produced on the contact surface at the moment of contact between the two, or physical laws that were incomprehensible to two-dimensional creatures.
And all of this was just the result of "interference".
Even if one could perceive their existence, it was almost impossible to stand in the position of a low-dimensional creature and reverse the interference produced by a high-dimensional space on a low-dimensional space.
From this point alone, the existence of this four-dimensional space fragment was somewhat similar to the existence of the Z particle.
However, its existence was more complicated.
It was not some kind of matter that existed in the four-dimensional space, but it was precisely space itself.
Therefore, in theory, it was impossible to cross this barrier.
All physical attacks could not have any effect on it. Even if a million-ton nuclear bomb came and razed this ruin to the ground, it wouldn't move at all.
However, this didn't mean that Lu Zhou was helpless.
The internal space of the entire ruin was divided into countless small pieces by the fragments of the four-dimensional space. All the channels here were continuous and unchanging in a topological sense. As for the changes in position, it was only because of the distortion caused by the interference of the four-dimensional space fragment with the three-dimensional space, making these tunnels mixed together like a jigsaw puzzle.
The reason why he couldn't cross the barrier in front of him was just because the "door" wasn't here. The space in front of him that he could not enter was like a jigsaw puzzle that had been forcibly removed from the complete picture and thrown into an inconspicuous corner.
What he had to do now was to find the missing piece from the thousands of jigsaw pieces.
And where it originally belonged.
If Xiao Ai were here, it would save him a lot of time. However, this was the underground of Mars, and he could only rely on himself.
Fortunately, for a level 10 mathematics student, this wasn't a difficult task.
Half an hour passed by.
Finally finding the missing piece of the puzzle, Lu Zhou stared at the screen with a smile on his face.
"… I didn't expect the answer to be so close."
Lu Zhou gently clicked on the wrist-mounted computer on his left arm and reopened the communication module.
"See you later."
After saying this, he turned around and left the spacious grotto. He exited the arched door that was as tall as five people and returned to the place where he first came.
Without any hesitation, Lu Zhou, who already had an answer in his heart, walked unhurriedly in the opposite direction and passed through the gray dust.
Soon, he came to a bottomless cliff and stopped at the edge of the cliff.
If his inference was correct, this should be the location where the puzzle piece was removed. The space that he saw in the grotto that he could not enter originally belonged here.
If he wanted to enter that place, he had to pass through this' door '!
As if observing his every move, the voice that had disappeared for a long time once again appeared, speaking leisurely into his ear.
"Are you ready?"
Lu Zhou, who was about to take a step forward, stopped.
"What do you mean?"
"I mean, if you retreat now, it's not too late."
When Lu Zhou heard these words, he suddenly smiled and spoke in a joking tone.
"Are you really willing to let me go back?"
"It's not that I'm unwilling, it's just a little longer for me. Those Observers won't let me stay idle, they will always send suitable individuals to me. "
Lu Zhou: "If it doesn't matter, why are you persuading me?"
"Because this road is not easy, whether it is for you or me. I'm just providing you with another option. After you go back, you can live a happy and stable life, and you don't have to pay the price. You won't even have a chance to see the future. "
There was a hint of a bewitching tone in the voice.
Lu Zhou had to admit that this sounded tempting.
He was already at the top of the academic world, and this was the peak of power that a scholar could reach. Even if he didn't do anything in the next few decades, he would be able to live the rest of his life happily. There was no need for him to take such a big risk.
However …
"You're right, but since we've already come this far …" Lu Zhou continued, "If we go back like this, we will regret it."
"It's not a good thing to be too curious."
Lu Zhou smiled and said, "Really? Now I believe that you are not in cahoots with those observers. "
"Oh? Why? "
Lu Zhou: "Because I still remember that person saying that curiosity is an enviable quality, and that quality has been abandoned by them for a long time."
"Hahaha, it's up to you. But you have to think carefully, once you make a choice, you can't go back. "
"About this, I thought about it before coming here."
Lu Zhou closed his eyes and pondered for a long time. He then silently took off the wrist-mounted computer on his left arm and threw it in the open space behind him.
Then, he took a deep breath and gathered all the courage in his body. He jumped toward the abyss that seemed to be able to swallow all light, allowing gravity to pull him into the endless darkness.
The free fall lasted for three or four seconds.
Then, a magical scene happened!
The moment he was engulfed by the boundless darkness, the feeling of the world spinning around him crawled through every cell in his body.
It was as if the direction of gravity had been reversed in an instant. A huge force of inertia grabbed his shoulder and slammed him to the solid ground.
"Ah …"
Lu Zhou felt like his chest had been hit by a truck. He gasped and struggled to get up from the ground.
When he raised his head, there was a trace of ecstasy in his eyes.
The space in front of him was the stone cave that he had just left, and his position at this moment was the area that he could not pass before, the other side of the "wall".
Lu Zhou restrained the excitement in his heart. He took a deep breath and calmed himself down.
"Did I pass all the tests?"
"Sort of."
"What do you mean by sort of?"
This time, the voice didn't give any answer.
Just when Lu Zhou was confused about what to do next, the surrounding space suddenly lit up with a soft light. A transparent crystal that looked like a soap bubble appeared out of thin air in front of him.
If one were to look carefully, one would notice that there were tiny veined patterns imprinted on the clear and transparent membrane. Those lines were like a projection of the ruins, corresponding to every tunnel in the ruins.
Lu Zhou was curious about this magical phenomenon. He was about to reach out and touch it, but he was stopped by the voice in his ear.
"Don't touch it with your hands!"
Lu Zhou's hand stopped in mid-air. He took back his hand and stared at the transparent spherical crystal for a long time. He then spoke.
He then said, "Don't touch it with my hands means … I should touch it with something else?"
"This is the fragment of the four-dimensional space. All the changes in the ruins are caused by it."
The moment he heard this, Lu Zhou couldn't help but be amazed. He couldn't help but ask, "How did you fold the four-dimensional space into such a … perfect state?"
"This is not our technology." The voice said calmly, "To fold the fragments of the four-dimensional space into a three-dimensional sphere, I'm afraid only the Observers can do this."
Lu Zhou: "This is what the Void wants to give me? A fragment of the four-dimensional space? "
"No, it's just a key."
"Key?"
"That's right, it can send you to the treasure."
("Follow" to see the short story behind the top student (?????)??)
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