Brigitte Nicholson becomes hooked after she discovers a mystery in their family's past: how did a Dakota Sioux princess end up buried in Brittany as a noblewoman alongside a distant relative? Brigitte's quest to learn the story of the Marquise de Margerac (ne e Wachiwi) takes her from Salt Lake City to Sioux Falls, S.D., and eventually to Paris, where she meets Marc Henri, a fetching Sorbonne literature professor.