In her much-anticipated new novel, the New York Times bestselling author of the Outlander saga brings back one of her most compelling characters: Lord John Grey--soldier, gentleman, and no mean hand with a blade. Here Diana Gabaldon brilliantly weaves together the strands of Lord John's secret and public lives--a shattering family mystery, a love affair with potentially disastrous consequences, and a war that stretches from the Old World to the New. . . .

In 1758, in the heart of the Seven Years' War, Britain fights by the side of Prussia in the Rhineland. For Lord John and his titled brother Hal, the battlefield will be a welcome respite from the torturous mystery that burns poisonously in their family's history. Seventeen years earlier, Lord John's late father, the Duke of Pardloe, was found dead, a pistol in his hand and accusations of his role as a Jacobite agent staining forever a family's honor