In late nineteenth-century London, fourteen-year-old Enola Holmes, much younger sister of detective Sherlock Holmes, turns to Florence Nightingale for help when her investigation into the disappearance of a Crimean War widow grows cold.
Traces the hard life, filled with losses, adversity, and adventure, of Amos, son of a trapper and dowser, from 1833 when his mother dies giving birth to him until 1859, when he himself has grown up and has a son of his own.