The Foundingstone

The stone was nameless and ancient; it was made before the world itself was made, and it may survive past the worlds final cataclysm. Still, it was a chunk of stone, and was retrieved from a realm far from this one by an ancient sorcerer called Pyorrhoea. He called upon great magic to carve the stone into the shape of eternity. After shaping it, Pyorrhoea christened the rock the Foundingstone, and made it the keystone of a secret underground necromantic laboratory.