There are 4 books in the Stanley Family Mystery series.
The Stanley Family Mystery series does not have a new book coming out soon. The latest book, Janie's Private Eyes (Book 4), was published in January 1989.
The first book in the Stanley Family Mystery series, The Headless Cupid, was published in July 1971.
The Stanley Family Mystery series primarily falls into the General Fiction genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.