From publisher blurb:
In this series, Kenneth Hite looks at the creatures, species, and monsters of the Cthulhu Mythos from every non-Euclidean angle. Alternate versions and new explanations provide the same jolt of mythic bisociation that the gods and titans receive in the TRAIL OF CTHULHU corebook. Hite traces these foul things through their legendary history, and provides further clues for any Investigator to follow. Horrific scenario seeds burst and bloom, story spines protrude and deform, in a blasphemous garden any Keeper can harvest.
“Worlds of sardonic actuality impinging on vortices of febrile dream – Iä! Shub-Niggurath! The Goat with a Thousand Young!” Are they nameless horrors or numbered servitors, Druidic nightmares or ab-natural abominations? Where do they grow, and on what loathsome food do they thrive? Follow them to Hell and Hydra, or to Mormo and Monsanto.