The Mystery of the Missing Mystery, #4

May's father may have made a big mistake! He gave his original version of his first big novel to the Spring Valley Library. Then somebody stole it. Can the Ryder kids help the police "throw the book" at the book-crook? Maybe not, but they're determined to try! 123 pages, softcover. Approximately Grades 3-4.

The Mystery Ryders series is a collection of kid-friendly adventures about a girl detective who travels with her family on board their private train car, crisscrossing America, finding adventure along the way. Each story is told by the detective herself, May Ryder, who, with the help of her brainy big brother, never stops trying to do the right thing as she solves her next big case.