Battle Magic is the supposed title of the next book in the Emelanese Universe. It was originally scheduled for publication in 2012. However, the publication date was pushed back to April 1, 2013. Tamora Pierce has been working on the book since at least August 2011. She let the title fall in a blog post on her private lifejournal without explicitly saying that she meant the next Emelan book with it, but it is a fair guess considering that this is the next book to be released after Mastiff and the title fits the content.