Conventicle of the Dead

The Chapel of the Dead is a site which may be found within the depths of the Catacombs. It is here that the Heart of Earth is interred.

Description
Little is known about the Chapel of the Dead or its origins, although the structure appears to be in some way dedicated the worship of Lithos. The key to the monument was buried with the bones of a woman long since dead, and only an adventurer willing to retrieve it from Pit of Death would be able to gain access to this place and the artifact housed within it.

The Avatar would enter the Chapel during their exile, either by obtaining said key or by using the powers of Necromancy to summon a golem to throw open the doors. Once inside, the hero would abscond with Lithos' Heart of Earth, and would later use this object to rob the Mountain King of his power.