The Battlementals series does not have a new book coming out soon. The latest book, Quest for the Harmonicon (Book 1), was published in January 2017.
The first book in the Battlementals series, Quest for the Harmonicon, was published in January 2017.
The Battlementals 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.