The Meltdown series does not have a new book coming out soon. The latest book, The White House (Book 2), was published in December 2012.
The first book in the Meltdown series, Meltdowns First Adventure, was published in August 2010.
The Meltdown 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.