'IN THE 1890s, Cthulhu and his minions share the globe with the mighty British Empire. But they owe allegiance to an empire of their own -- a dark and cruel design on ownership of the world and on the dreams of humanity. Even among the green fields of rural England, only thoughtful and energetic intervention keeps the shadows at bay.'
The book offers a highly thought out Victorian England setting for use with Call of Cthulhu. Character creation has been enhanced with new wrinkles. There are articles on the Victorian world, crime, politics, personalities, and so forth. There are extensive sections on the Cthulhu Mythos in British culture - creatures, cults, and books - and a précis of Ramsey Campbell’s Severn River Valley.
Don't just take our word for it! Check out this review of Cthulhu by Gaslight.