The new, chilling thriller from the author of The Boy at the Door. What would you do to get your daughter back? Three months ago Alison's world fell apart when her five-year-old daughter drowned at the local lake. Lost in grief, her husband and friends are unable to reach her. Across town, Iselin's life is about to change. Her seven-year-old daughter has survived a life-saving operation. After years of treading water, they can now start thinking about the future. These two mothers have never met. But their daughters will bring them together. And the consequences will be devastating... 'Turns the raw power of maternal feeling into a gripping plot... The author keeps the reader on tenterhooks with a deft balance of nail-biting tension and pure sympathy for her twisted heroine' SUNDAY TIMES CRIME CLUB. 'Intriguing and believable... At once a compelling thriller and a beautiful meditation on grief' JANE SHEMILT. 'This had me gripped to the last lines' STELLA DUFFY. What readers are saying about ALEX DAHL: 'Absolutely brilliant... I was in tears at points. I can't wait for the next story from this gifted writer' 'I was completely overtaken by this book. I couldn't put it down. It held me from the very beginning' 'Cracking story, fully fleshed characters, full of twists and turns and keeps you guessing. Great read and unputdownable. Highly recommended' 'I loved this book. A truly immersive unputdownable novel and a Netflix Original in the making!'