"From the New York Times bestselling author of Ghosted comes a love story wrapped in a mystery: an up-all-night page-turner with a dark secret at its core I have held you at night for ten years and I didn't even know your name. We have a child together. A dog, a house. Who are you? Emma loves her husband Leo and their young daughter Ruby: she'd do anything for them. But almost everything she's told them about herself is a lie. And she might just have...