There are 2 books in The Mylena Chronicles series.
The Mylena Chronicles series does not have a new book coming out soon. The latest book, Greta and the Glass Kingdom (Book 2), was published in August 2014.
The first book in The Mylena Chronicles series, Greta and the Goblin King, was published in December 2012.
The Mylena Chronicles series primarily falls into the Fantasy genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.