J. D. Robb's "Missing in Death" investigates a female tourist's disappearance during a ferry ride. Detective Eve Dallas wonders if she didn't jump, and she's not on board, then where in the world is she? In Patricia Gaffney's "The Dog Days of Laurie Summer," a woman awakens to a familiar yet unsettling world. In Mary Blayney's "Lost in Paradise," a man locked in an island fortress finds hope for freedom in an enigmatic nurse. And Ruth Ryan Langan's "Legacy" belongs to a young woman who unearths a family secret buried on the grounds of a magnificent but imposing Irish castle.