The Encyclopedia Cthulhiana is an essential resource for cosmic horror enthusiasts, gamers, and researchers. Learn the origins of the gods and monsters from the pantheons of H.P. Lovecraft and beyond. Gaze upon the detailed images of the elder gods. And unlock the history of the Necronomicon—if you dare!

Inside, you’ll find:

Detailed entries on mythos deities, creatures, tomes, and objects, including their appearances in fiction and popular culture.
An in-depth essay on “What is the Cthulhu Mythos?” by author Dan Harms.
Evocative illustrations of major mythos creatures including Nyarlathotep, Hastur, and Cthulhu itself.
Timelines of the Necronomicon and the Cthulhu Mythos.
An extensive bibliography of cosmic horror texts.





It may not be possible to ship very heavy items outside of the Mainland UK.
Released: 27 October 2026