Nancy Drew meets Louis L'Amour...as bestselling author Sugar Lee Ryder presents the second book in her brand new western series, Maddie Slade. Maddie Slade's detective agency is up and running in Helena, Montana. Things are tranquil until news arrives of a perplexing robbery in the nearby city of Butte. 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 report that tell her one thing: an airship is at the heart of this caper. She sets out in her aero-plane, set on getting a contract to find the lost payroll. But the robbery might be the least of her worries. Maddie, joined by patrolman Cody Sims, finds a maelstrom of shady characters with shadier pasts in Butte. Along the way, she'll have to face gunfire, riots, and explosions at the Happy Jack Mine! Maddie's about to face revenge and treachery like she's never seen before!