Tending to the soldiers in the trenches of France during the First World War, battlefield nurse Bess Crawford can't help but notice the photo of a young pilot's wife every time she tends to him. But then at the railway station, in a mob of troops leaving for the front, Bess glimpses a familiar face—the pilot's wife, with another man. Later, back in France, Bess sees a newspaper with a drawing of the woman's face on the front page. She'd been

Lancashire, England, June, 1920. Who was the woman who lived and died behind the red door? What did she see before she died? And who was the man who never came home from the Great War, for the simple reason that he had never really gone? How is the woman's death linked to his disappearance? And why is Scotland Yard blind to the connection, even when Inspector Ian Rutledge points it out?

Late on a spring night in 1920, five boys cross the Yorkshire dales to the ruins of Fountains Abbey, intent on raising the Devil. Instead, they stumble over the Devil himself, sitting there watching them. Terrified, they run for their lives, leaving behind a book on alchemy stolen from their schoolmaster. The next morning, a body is discovered in the cloisters of the abbey--a man swathed in a hooded cloak and wearing a gas mask. Scotland Yard dispatches