A secret wartime love affair. A girl nobody can find. Is it ever too late to say you’re sorry?

September 1940. As the bombs of the Blitz fall on London, Ruby and Stevie are falling in love. United by a shocking experience when they were evacuees, Ruby believes that she understands Stevie like nobody else can. But then Stevie is sent abroad into danger and as Ruby waits, desperately, for letters with foreign stamps that never come, she begins to fear that he is lost forever. And when Stevie does return, he has changed, and Ruby faces a difficult choice…

August 2004. Billie has rushed to her father Dick’s hospital bedside. A terrible stroke has robbed him of his speech, and he is a shell of the man he was before. But when Billie finds a crumpled black and white photo in his wallet of a smiling, dark-haired girl she doesn’t recognise, Dick frantically tries to talk. Billie knows that he is trying to tell her something important, and she must ask the questions her father cannot. All she has to go on is the name he is just able to mumble. Ruby.

As Billie uncovers Ruby’s tragic story she is determined to find out what happened to the girl who went away for a weekend with the man she loved and never came home. Why did nobody miss her? And how is she connected to Billie’s beloved father? Can Billie lay the ghosts of the past to rest, even if it means revealing the darkest secrets of her father’s life and breaking her own heart?