The Mark of Madness is the tenth deluxe expansion for Call of Cthulhu: The Card Game, with roughly two-thirds of its 165 new cards (three copies each of 55 different cards) dedicated to the Hastur faction. As Hastur's secret cult expands its powers, you'll find a maddening array of new characters, support cards, conspiracies, and events that lend new strength to the game's Terror struggles and its mechanics for insanity. The game's other factions are touched by madness, too, as they each gain powerful new characters that enter play insane and reshape the game when restored.
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