This is the most central location of the third layer of the Secret Realm and also the place with the most complex terrain.
It is said that the inside twists and turns, full of countless cave branches. The entire cavern extends downward for more than thirty miles and spreads out over a thousand miles, nearly covering the entire third layer secret realm. Its structure is incredibly complex, resembling a natural maze.
It is said that no matter how sharp a martial cultivator's sensing ability is, once they venture seventy miles into the cavern, they won't be able to find their way out.
Besides, the cave is home to a large number of fierce evil beasts.
These are the failed creations from the ancient times when Zhu Guangyin created all things; their breeding capabilities are extremely strong, and they are vicious and stubborn, killing each other and feasting on the flesh and blood of cultivators.
