Earth once possessed abundant spiritual energy as well, and there were quite a few immortal cultivators during ancient times. For reasons unknown, however, the spiritual energy suddenly dried up, yet many ancient immortal cultivation sects remain buried deep underground. Discovering them would mean obtaining a tremendous fortuitous encounter."
Chu Hao grew somewhat curious and asked, "What kind, for instance?"
"My dad said he went there once," Liu Yanxi replied. "Most of the pills and such inside were unusable, but the manual techniques and materials could still be used."
Chapter 45