Ubbo-Sathla ("The Unbegotten Source", "The Demiurge") is described as a huge protoplasmic mass resting in a grotto deep beneath the frozen earth. The being is of a monstrous fecundity, spontaneously generating primordial single-celled organisms that pour unceasingly from its shapeless form. It guards a set of stone tablets believed to contain the knowledge of the Elder Gods. Ubbo-Sathla is said to have spawned the prototypes of all forms of life on Earth; though whatever its pseudopods touch is forever devoid of life. Ubbo-Sathla is destined to someday reabsorb all living things on Earth.