Bonnie Hartford, an A plus history student, first landed on her historical topic for a scholarship contest when she was working in the library after school. An odd character, known in the library as ""The Bump,"" spent many hours in the reference room reading about Eleazer Williams, an Indian missionary, whom many believed to be the lost Dauphin. Through an old diary which turns up in an auction, both the Bump and Bonnie gain new leads on their respective research projects; they never work together. The Bump disappears from DePere, Wisconsin about the time that Bonnie solves the mystery; later she learns that he was a graduate student at Columbia who had had a nervous breakdown, and thought he was a descendant of Eleazer Williams and therefore an heir to the French throne. An intriguing story with a fairly reasonable conclusion, which is easy, pleasurable reading.