Nancy Drew meets Louis L'Amour...as bestselling author Sugar Lee Ryder presents the father-daughter team of Matthew and Maddie Slade Maddie Slade's detective agency is up and running when she and her gunslinger father sign up to solve a perplexing robbery in a nearby city. The payroll of the Happy Jack Mine has vanished - literally into thin air - and the mine workers are threatening to strike As an expert aviator, Maddie spies clues in the robbery...