Trixie Belden and the Mysterious Visitor (Trixie Belden Library, Book 4)

252 pp. Illustrated by Marvin Besunder. Cover by Paul Frame. "Trixie and Diana Lynch were friends for years before Di’s family became fabulously rich. So when Di’s long-lost uncle starts ruining her social life, Di turns to her old friend for help. But Trixie thinks Uncle Monty isn’t just an annoying relative–she thinks he’s an impostor!"