Tom Hoobler has published more than 90 books, most of them co-authored with his wife Dorothy. A majority of them were aimed at children or young adults. They won an Edgar for the Best Mystery of 2005 for their book, "In Darkness, Death," a mystery set in 18th-century Japan. Their latest book for adults was "The Crimes of Paris: a True Story of Murder, Theft, and Detection." It is set in Paris between 1900 and 1914, and one of the crimes described in the book is the theft of the Mona Lisa.