The Key & the Flame series does not have a new book coming out soon. The latest book, The Wand & the Sea (Book 2), was published in June 2015.
The first book in the Key & the Flame series, The Key & the Flame, was published in April 2013.
The Key & the Flame series primarily falls into the Fantasy genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.