Billy, Finn, and Dannie investigate a series of thefts at a railroad workers camp, they also find themselves searching for Billy's missing cousin, nine-year-old Mim.
During the 1920s, Billy, Finn, and Dannie, living in a railroad workers camp in the Cascade Mountains, encounter Finn's air show pilot uncle, endure a troublemaking new boy, and stand up to smugglers.
Ten-year-old Billy, his best friend Finn, and a girl named Dannie, living in a 1920s camp of railroad workers in the Cascade Mountains, follow clues to try to uncover the relationship of a stolen crate of dynamite with gold taken during an 1893 train robbery.
When Billy finds a burlap sack containing a pistol and a cryptic, threatening note, he and his best friends Dannie and Finn avoid rehearsals for the town's historical pageant while trying to learn who holds a grudge and is plotting against the railroad.
