The Portals series does not have a new book coming out soon. The latest book, Band of Rogues (Book 3), was published in February 2011.
The first book in the Portals series, Portals, was published in January 2009.
The Portals series primarily falls into the Action Adventure and Fantasy genres. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.