|“||It was a figure no larger than a young child, but sere and shriveled as some millennial mummy. Its hairless head, its unfeatured face, borne on a neck of skeleton thinness, were lined with a thousand reticulated wrinkles. The body was like that of some monstrous, withered abortion that had never drawn breath. The pipy arms, ending in bony claws, were outthrust as if ankylosed in a posture of an eternal dreadful groping.||„|
|~ Clark Ashton Smith , The Treader of the Dust|
Quachil Uttaus (The Treader of the Dust), a Great Old One can reduce all living tissue he comes into contact with to dust (and is therefore similar to another of Smith's characters, Ubbo-Sathla). Quachil Uttaus is usually associated with age, death, and decay. Summoning this god is considered lethal, if one even subconsciously entertains thoughts of suicide.
It is noted for the acceleration of time that occurs in its presence. Appears as a mummified humanoid with withered, bone-thin arms and unnatural, ever-grasping hands. Also known as “The Ultimate Corruption”. It may have been known in ancient Egypt as Ka-Rath , “The Keeper of the Dust”.
Quachil Uttaus was created by Clark Ashton Smith, but incorporated into the Mythos by others.