Chaosium 

Everything the Keeper of Arcane Lore desires.

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Keeper Rulebook

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Amidst the Ancient Trees

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Crimson Letters

Call of Cthulhu 7e

The daughter of a local industrialist has been kidnapped

The adventure begins at the ill-starred Miskatonic University

The Keeper Rulebook, contains the core rules, background, guidance, spells, and monsters of the game. It is everything you need for Call of Cthulhu at your fingertips, and will enhance all of your games. The Keeper Rulebook is intended for use by the Keeper of Arcane Lore—the Game Master who will present the scenario to the other players.

Join the adventure