Lee Westfall, a young woman with the magical ability to sense the presence of gold, must flee her home to avoid people who would abuse her powers, so when her best friend Jefferson heads out across Gold Rush-era America to stake his claim, she disguises herself as a boy and sets out on her own dangerous journey.

In 1865, fifteen-year-old Aiden and his thirteen-year-old sister Maddy, penniless orphans, leave drought-stricken Kansas on a wagon train hoping for a better life in Seattle, but find there are still many hardships to be faced.

Douglas Deeds, a fifteen-year-old orphan, keeps a journal of his travels by wagon train as a member of the ill-fated Donner Party, which became stranded in the Sierra Nevada mountains in the winter of 1846-47.