There are 4 books in the Legacy of Caliban series.
The Legacy of Caliban series does not have a new book coming out soon. The latest book, Legacy of Caliban: The Omnibus (Book 4), was published in October 2016.
The first book in the Legacy of Caliban series, Ravenwing, was published in January 2013.
The Legacy of Caliban series primarily falls into the Speculative Fiction genre.