A Richard and Judy Bookclub PickA Times Top Ten bestsellerBerlin 1939. War has begun. Winter has blanketed the city in snow. A serial killer is at work... 'Taut and chilling' Anthony Horowitz
Two sisters. An intense bond. A bitter rivalry. When a terrible secret comes to light, the twins' fragile existences shatter, pitting them against each other in a race for survival.