Liu Di and Redback walked slowly onward.
They left behind a trail of human and dog footprints across the desert, just like when they had once strolled around the Experimental Graveyard.
Finally, before sunset, an abrupt boulder appeared ahead. There was a cave in the boulder, and rootless water flowed slowly from it, forming a curtain-like waterfall glittering with flowing light.
Liu Di stepped into it, only to feel distances leap past as he walked and time speed away.
It seemed to be some kind of light speed again.
Liu Di sighed. The secrets of the Brain Realm were still unfathomable. Once an object reached the speed of light, it could traverse space and time.
After only a few breaths, brilliant, iridescent light swirled around Liu Di.
This time, he appeared out of thin air on a stretch of flat land. Before him stood a vast ancient city, elegant and classical. Its gate tower was richly carved and painted, while its white jade walls stood five meters tall and stretched endlessly into the distance.
"This is an ancient city."
"I suppose this is a world of sword-riding immortals, of grudges and vengeance freely settled."
Liu Di smiled, unable to suppress a flicker of anticipation.
As he slowly approached the city, however, a magnificent sight caught his attention.
The white jade city walls were densely covered in brush-written characters.
They were neither ancient poems nor records of the city's history.
They were individual Chinese characters.
"Wisdom," "Goodness," "Kindness," "Color," "Beauty," "Evil."
They were strange and varied, covering the entire city wall. There were at least tens of thousands of them, with very few repeats.
Puzzled, Liu Di slowly walked along the base of the wall, examining them.
At last, beside the city gate, he found an old man covered in ink