To save her sister, who, along with her American diplomat husband and children, is trapped behind the Iron Curtain, Ruth Macallister embarks on a dangerous mission, and as the sisters race toward safety, a dogged Soviet agent forces them to make a heartbreaking choice. Autumn, 1948: Iris Digby, her American diplomat husband Sasha, and their two children vanish from London. Were they eliminated by the Soviet intelligence service? Or have the Digbys...