Liveaboard skipper and amateur sleuth Cass Lynch is enjoying marine college in Scalloway, until the night she finds an acquaintance dead - with one hand smeared in peat ash. Rumours spread of a strange ritual linked to the witches once burned in Shetland's ancient capital, and of a horned figure roaming the night. At first Cass believes these whisperings to be mere superstition, until a second shocking murder comes to light.

Perhaps the devil really does walk in Scalloway . . .

Previously published as A Handful of Ash.