The H.P. Lovecraft Wiki

This subject contains information from the Mythos Adjacent Works, and while share similar themes and features of the Mythos are not based on his work, or generally considered a part of the Mythos proper. This subject contains information from the Expanded Cthulhu Mythos, and not based on H.P. Lovecraft's works directly. Carcosa is an extraterrestial city, which is often tied to Hastur.


Carcosa is often desribed to have:

  • Black stars on a bright sky
  • Twin black stars
  • The Lake of Hali
  • Black soaring towers
  • Wet winds


In the Pathfinder universe, Carcosa is a highly magical planet which contains a living city that is also called Carcosa. It's the home of Hastur, who resides in the monstrous Lake of Hali. When the light from Carcosa's star shines on another world's night sky, Hastur's power increases on that world. Carcosa is continuously expanding, absorbing the societies and cities of other worlds, serving as the fuel for Hastur's eventual ascension into the ranks of the Outer Gods, at which time he will consume and absorb Carcosa and its inhabitants. The city of Carcosa is a vast patchwork of the cities which it absorbed over the eons, each individual patchwork is a nexus, which may retain some of the properties of their original worlds. Some of the known nexuses include Neruzavin (flying polyp city), Bohlvari (shoggoth inhabited elder thing city), a technologically advanced city of skyscrapers (inhabited by robots and aliens), and an underwater city (inhabited by the undead).

External links