According to the Pnakotic Manuscripts, Aphoom-Zhah is the offspring of the Great Old One Cthugha. It manifests as an enormous cold blue flame with the power to freeze anything that it comes into contact with.
Originating in the star system Fomalhaut, Aphoom-Zhah came to Earth via the planet of Yaksh (known as Neptune in the present day). Upon arriving, The Cold Flame made its home on the legendary Mount Yarok at the North Pole, but also regularly visited the lost continent of Hyperborea (now modern-day Greenland). Pursued by Elder Gods who were intent on imprisoning it, Aphoom-Zhah responded with such primal fury that all of the surrounding lands were instantly flash-frozen, creating the Northern polar ice cap in the blink of an eye.
Later, Aphoom-Zhah and Ithaqua enacted a plan to freeze the whole planet; while unsuccessful, they did manage to glaciate the lands of Hyperborea, Zobna and Lomar, and wipe out their entire populations.
- The Horror in the Gallery (1976), by Lin Carter (reference only).
- The Light from the Pole (1980), by Lin Carter (reference only).
- The Acolyte of the Flame (1985), by Lin Carter.