There are 5 books in the Mortensen's Escapades series.
The Mortensen's Escapades series does not have a new book coming out soon. The latest book, The Tunnel (Book 5), was published in September 2013.
The first book in the Mortensen's Escapades series, The Mysterious Manuscript, was published in September 2012.
The Mortensen's Escapades 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.