It is 1910 and to ten-year-old Oskar Grunewald, the Melville family is impossibly, incomprehensibly glamorous. Born into privilege, their certainties are as unshakeable as the walls of their Victorian castle. It is a world to which Oskar, mathematics prodigy and son of a penniless German composer, has no wish to belong. But when Theo Melville is killed in the Great War, shattering his family s liv...