How far would you go to hide a killer in the family? A heart-pounding new novel from the Richard and Judy bestselling author of She Lies in Wait Aisling's two sons, Ethan and Finn, mean everything to her. Ever since becoming estranged from her own parents, though, she's always felt like a piece of herself is missing. Desperate to find answers - about her family, and herself - Aisling uploads her DNA to an ancestry website, and is thrilled when it finds a match. But instead of finding answers, she comes face to face with Detective Jonah Sheens. Aisling's DNA is a match for a recent crime scene - the latest in a string of murders by a dangerous serial killer, known as 'the bonfire killer'. And the police have three lead suspects- her father, or one of her two sons...