Miss Silver Intervenes (Miss Silver Series)

When her fiance disappears in a shipwreck, Meade Underwood is left with nothing but a middle-aged aunt, bridge parties and war work to keep her mind off it. Then Giles is restored to Meade, but he has lost his memory, and their chance of happiness is threatened by the scheming Carola Roland, a figure from Giles's forgotten past. So when Carola is viciously murdered, Giles is naturally the chief suspect, and Miss Silver the only one who can find out what really happened.