Auschwitz, 1944: "You can't leave me," I whisper, my hand trembling as I reach for her cheek. "You can't. We're in this life together, always, just you and me." This utterly heartbreaking yet beautifully hopeful World War Two page-turner tells the story of identical twin sisters in Auschwitz. Born minutes apart, Arina and Nora have never left each other's side-until now... The cattle car is dark,...