Koltassia

Koltassia is a fictional landmass featured in the works of author H.P. Lovecraft and his Circle. It is most notably described in the story "The Shadow Over Innsmouth" and subsequent related fiction. Koltassia is depicted as a remote and mysterious continent, often shrouded in fog and located in the southern hemisphere. Its geography is generally described as rugged and mountainous, with inhospitable coastlines.

The history of Koltassia is intertwined with the degenerate Deep Ones and their human cultists. It is believed to be a place where these beings maintain ancient cities and conduct their arcane rituals, often hidden from the outside world. Legends suggest that Koltassia served as a sanctuary for the Deep Ones after their supposed decline in other oceanic regions. Access to Koltassia is considered extremely difficult and dangerous, with few recorded instances of outsiders successfully reaching its shores and returning to tell the tale. The land is often associated with dark magic, alien architecture, and a pervasive sense of dread. Its exact location remains ambiguous, adding to its mythic quality within the Cthulhu Mythos.