Free-lance writer Ernie Rydberg wrote the Mystery in The Jeep, one of at least eleven books, hundreds of short stories, screen plays, and more over his lifetime (1901-1990). I’ve ordered an inexpensive copy of the book and will report on it when I get a chance.There’s a first edition of the book on eBay for $63.74 and another edition on Amazon for only $19.
According to the synopsis from Goodreads.com, “A pretty librarian helps two high school students, Lefty and Gloria, track down a gang of diabolical confidence men. Their clue is a book, which starts them on the track of illicit real estate deals and other unsavory enterprises.”
Here are two examples of the book cover: