The Jewel Society series does not have a new book coming out soon. The latest book, Battle of the Brightest (Book 4), was published in December 2013.
The first book in the Jewel Society series, Catch Us If You Can, was published in June 2013.
The Jewel Society series primarily falls into the Action Adventure genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.