There are 3 books in the Marty Frye, Private Eye series.
The Marty Frye, Private Eye series does not have a new book coming out soon. The latest book, The Case of the Busted Video Games (Book 3), was published in July 2018.
The first book in the Marty Frye, Private Eye series, The Case of the Missing Action Figure, was published in January 1998.
The Marty Frye, Private Eye series primarily falls into the Mystery genre. This chapter book series was written for ages 7-10, but some older readers may still like to read these books.