Here lay a vast and empty underground cavern.
The bright sensation characteristic of the Ash Boundary was gone, replaced by the dimness of a normal underground cave. The air was tinged with an odd smell of mud and dampness, while large patches of moss on the cave walls faintly glowed green.
Cool drafts blew in from the darkness, suddenly brightening the green light from the moss, momentarily illuminating the surrounding scene.
Woooo...
On the rock face of the immense cavern, a smooth, oval-shaped hole was quietly embedded. The hole was pitch black, incessantly blowing out gusts of yin wind that carried an extremely unsettling aura of disaster and evil.
At a glance, it resembled a huge black gem.
