-Incredibly good, intriguingly twisty, beautifully written... I loved it. I couldn-t put it down.- No.1 bestselling author, Valerie Keogh-Please, I need your help. You-re the only person I can turn to. The only person who can pretend to be me--When Alice gets a desperate message from her estranged identical twin sister Cecily, she can-t help herself. She has to say yes. Pushing down the memories of the terrible childhood that ultimately tore them apart, she arrives at her sister-s house. Cecily has left instructions: how to work the oven, what to cook for supper, what to say to her husband. She says she-ll only be gone a week. She just needs to contact a lawyer, sort her head out, and work out how to get away from her marriage safely. Alice barely knows why she-s agreed. But as she puts the key in the door, she wonders if - in coming to help her sister - she might be putting herself in the most terrible danger. Because when Cecily stops replying to messages, and the words -die, die, di