In Ireland, an archaeological team unearths an ancient horror, trapped within three stone vessels. The foul entity sets its followers on a journey to free it from its prison, crossing the Atlantic to New England and the backwoods of rural Massachusetts. Can the investigators prevent the liberation of the Ruler of Chaos? Will they discover the secrets of the Order of the Stone? A three-part campaign set in the 1920s, Full suite of resources, maps and handouts, detailed deck plans of the SS Champagne, the setting for the first scenario, six pre-generated investigators. The Order of the Stone is designed to be used with the Call of Cthulhu roleplaying game, or with the Pulp Cthulhu supplement.