Across the peninsula the mist rolled in, its icy fingers curling up the cliffs. Inside their houses people stirred in their sleep and children cried in the dark. The parish of Manningtree and Mistley has a dark history. In 1644, with England in the grip of a Puritan government, Matthew Hopkins, Cromwell's Witchfinder General, tortured scores of women there, including Liza, the herbalist, whose cottage still stands in Mistley, and Sarah Paxman, the daughter of the manor. And today the spirits of Hopkins and his victims haunt the old shop in the High Street, they say. Emma Dickson has given up her high-flying career to live in Liza's cottage, but now she is being driven half-mad by visions of the past; of Sarah's battle to save herself and Liza from the Witchfinder. In despair, Emma turns to the local rector for help, but he, too, is in the grip of something inexplicable -- something which threatens Emma.And, as the feast of Halloween approaches, Emma is caught up in a struggle that has been raging for centuries, as old enemies reach out across the years for their revenge. Can she stop the forces unleashed from the past wreaking their devastation in the present?