Michelle Harrison lives in Essex and has a son, Jack, and three cats: Marmite, Sorsha and Widdershins. Her first novel, The Thirteen Treasures, won the Waterstones Children's Book Prize and was followed by The Thirteen Curses and The Thirteen Secrets. Michelle has since written One Wish, a prequel to The Thirteen Treasures books; The Other Alice, which won the Calderdale Book of the Year Award; and the bestselling Pinch of Magic Adventures: A Pinch of Magic, A Sprinkle of Sorcery, A Tangle of Spells, and A Storm of Sisters. 

A 50-year-old mystery sparks a battle between a girl and her fairy tormentors.