Arkham Horror Files Wiki
UniqueR-52: Book of Iod [F]
Hostiam Sanguinis Virtus
Book of Iod R-52.png
Knowledge of the Eater of Souls comes at an unimaginable price.
Type Subtype
Support Tome
Faction Cost
Shub-Niggurath 1
Card Text
Attach to a character you control.
Action: Exhaust Book of Iod to reveal the top 2 cards of your deck. Put one of the cards into your hand and discard the other.

Book of Iod is a Support Card that appears in the Call of Cthulhu: The Card Game Revelations.


R-52 appears in the Necronomicon Draft Pack.


R-52 uses an illustration[?] by Jesse Mead.


The Book of Iod first appeared in the story Bells of Horror (Henry Kuttner, 1939).

The Book of Iod is a volume of unknown origin, though some attribute it to a mysterious author named "Khut-Nah". Only one copy in the original "Ancient Tongue" (which may be a mixture of Greek and Coptic) exists. It has been suggested that the Druids used some of the rites therein.

The book discusses Iod, the Shining Hunter, Vorvadoss, and the being Zuchequon. Its philosophy seems to have much in common with that of the Gnostics.[1]

Notes and references[]

  1. Harms, Daniel, "Book of Iod", Cthulhu Mythos Encyclopedia.