'This series is a must-read for anyone who loves the sea, or islands, or joyous, intricate story-telling.' ANN CLEEVESDays before the final Shetland fire festival, in broad daylight, a glamorous young singer tumbles down a flight of steps. Though it seems a tragic accident, sailing sleuth Cass Lynch, a witness at the scene, thought it looked like Chloe sleepwalked to her death. But young women don't slumber while laughing and strolling with friends. Could it be that someone's cast a spell from the Book of the Black Arts, recently stolen from a Yell graveyard?A web of tensions between the victim and those who knew her confirm that something more deadly than black magic is at work. But proving what, or who, could be lethal - and until the mystery is solved, innocent people will remain in terrible danger...