Hyperborean cycle
Created: February 2017 | Updated: February 2017

The Hyperborean cycle is a series of short stories by Clark Ashton Smith that take place in the fictional prehistoric setting of Hyperborea (present-day Greenland). Various elements in Smith's cycle have been borrowed by H.P. Lovecraft, most notably the "toad-god" Tsathoggua. Because Smith in turn borrowed numerous Lovecraftian elements, the cycle itself may be regarded as a branch of the Cthulhu Mythos.

Hyperborea is a legendary continent in the Arctic. Before it was overwhelmed by the advancing ice sheets of the Pleistocene age, Hyperborea was warm and fertile with lush jungles inhabited by the last remnants of the dinosaurs. A race of yeti-like bipeds known as the Voormi once populated Hyperborea, but were wiped out by the pre-human settlers that migrated here from the south. These pre-humans built the first capital of Hyperborea at Commoriom. Later they moved to Uzuldaroum when prophesies foretold of Commoriom's doom.