RIPPLES FROM CARCOSA expands upon the mythology of ÒHe Who Should Not Be NamedÓ and gathers much of the varied material on Hastur into one place. The first chapter reviews The Great Old One Hastur and his various avatar forms. It examines the Yellow Sign, the play ÒThe King in YellowÓ, the Mythos tome of the same name, and the effects these things have on the human mind.
Next within these pages is a trio of adventures pitting investigators against Hastur and his human worshippers. These scenarios can be played as stand-alone adventures or as a linked campaign called ÒRipples from Carcosa.Ó Investigators are provided for each scenario, but keepers should feel free to allow their players to use their own investigators if they so choose.
Finally is information on the Great Old One Hastur and his cults during the Cthulhu Invictus and Cthulhu Dark Ages eras.