A mysterious 1940s´ portrait leads researcher Phineas Fox to uncover a devastating wartime secret in this chilling novel of suspense. Phineas Fox finds it impossible to refuse when his sport-loving neighbour Toby begs for his help in finding out what´s happened to his cousin Arabella, who seems to have disappeared without trace. The only clue to her whereabouts is an obscure 1940s´ portrait left in her flat, a gift from her godfather, Stefan. The painting depicts the mysterious Christa Klein, Stefan´s sister - and an alleged murderess. Was Christa Klein really guilty of a monstrous crime? What exactly happened within brooding Wewelsburg Castle back in 1941? And what does it have to do with Arabella´s disappearance? As Phin delves further, he uncovers evidence of a lost piece of music and a devastating wartime secret: an atrocity whose repercussions reach to the present day.