In 1860, eleven-year-old Annie, who lives at the Red Buttes Pony Express station in the Nebraska Territory, asks Pony Express rider Billy Cody to help her find the person responsible for sabotaging her favorite pony Magpie.
As the daughter of a newspaper reporter, fourteen-year-old Libby keeps a diary account of the exciting events surrounding her during the building of the railroad in the West in 1868.
