In this straightforward mural were five people entering the passage, as well as another person entering it alone.
This undoubtedly pointed to the scene of Zhang Rong, the others, and me entering this cave, and of me entering this cave alone now.
This was no coincidence.
There had been five of us, including Zhang Rong and me.
Now I was alone.
And in the first scene of entering the passage, the five people had only made it halfway before turning around and fleeing.
The last time Zhang Rong, the others, and I had come in, we had also run away halfway through.
So these two pictures pointed to us.
I was no archaeologist and could not tell when these murals had been carved, but judging by common sense, they were at least decades, if not a century or more, old.
That meant that decades, or even a century or more, ago, whoever carved these murals had known the five of us would come, and had also known that after we came, I would return alone.
These two scenes frightened me badly, but more than fear, I felt shock.
I stood stunned for a long time, wondering whether this was prophecy or time travel.
Even more horrifying was the second scene. At the end of the passage in it was a circle, with the character for "nothing" written inside.
I naturally associated this character with the meaning of "infinite."
And the opposite of infinite was "finite."
The infinite and the finite, in turn, formed Mozi's view of the universe.
I wondered whether the end of the passage led to another world.
Or... another parallel spacetime?
I instinctively turned to look down the passage ahead, but as far as I could see, there was only endless, boundless darkness...
I turned back and