This was a vast and pitch-black cavern.
Even at its lowest point, the ceiling was hundreds of feet high, while the width fluctuated around half a kilometer, occasionally expanding to several kilometers across. The ceiling was covered in jagged stalactites, all snow-white, long, and sharp, like the fangs of a Demon Beast. They were coated in a thick layer of glowing fungus moss.
In the faint glow, Lü Zhong could make out the ground beneath his feet.
He was standing on a patch of damp sand. Unlike ordinary sand, it was extremely coarse and a ghastly pale white, emitting a cold, sinister aura.
"Nightlight Sand."
Lü Zhong recognized the sand's origin. It was a byproduct of a Demon Beast called the Green-striped Spirit Bat. Nightlight Sand could be used to fertilize Spirit Fields and also had some medicinal value, so it sold for about five talismanic coins per pound.
Looking around, he saw the ground was entirely covered in this Spiritual Sand.
