The Mark of Madness is the tenth deluxe expansion for Call of Cthulhu: The Card Game, introducing 165 new cards (three copies each of 55 different cards) that explore those depths of insanity that lie near the core of the Lovecraftian mythos. Devoted primarily to the Hastur faction, The Mark of Madness introduces a great number of deranged Artists, Cultists, and Lunatics, as well as the terrible, ancient powers that spur them forward. As Hastur's secret cult expands its powers, you'll also find a maddening array of new characters, support cards, conspiracies, and events, most of which lend new strength to the game's Terror struggle and mechanics for insanity.
