Maggie Taylor’s son is a week away from his third birthday, and she is terrified. Because in her world, third birthdays are the day on which the worst possible thing happens… She loses her child. For the last decade, Maggie has been imprisoned in a basement. Kidnapped at aged sixteen, she has not seen a sunrise for ten years. During that time, she has had three sons and, on the day of their third birthdays, her captor—their father—has come and taken the first two from her. She cannot let it happen again. She has seven days to stop it.