The Dinah Galloway series does not have a new book coming out soon. The latest book, Queen of Disguises (Book 6), was published in April 2009.
The first book in the Dinah Galloway series, The Spy in the Alley, was published in January 2002.
The Dinah Galloway 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.