A mother must fight for her daughter´s life in this fierce and haunting tale of witchcraft and revenge from the author of A Haunting in the Arctic. Clem gets a call that is every mother´s worst nightmare. Her nineteen-year-old daughter Erin is unconscious in the hospital after a hiking trip with her friends on the remote Orkney Islands that met a horrifying end, leaving her boyfriend dead and her best friend missing. When Erin wakes, she doesn´t recognize her mother. And she doesn´t answer to her name, but insists she is someone named Nyx. Clem travels the site of her daughter´s accident, determined to find out what happened to her. The answer may lie in a dark secret in the history of the Orkneys: a woman wrongly accused of witchcraft and murder four centuries ago. Clem begins to wonder if Erin´s strange behavior is a symptom of a broken mind, or the effects of an ancient curse?