There are 3 books in the Sword of the Dragon series.
The Sword of the Dragon series does not have a new book coming out soon. The latest book, Key of Living Fire (Book 3), was published in May 2012.
The first book in the Sword of the Dragon series, Swords of the Six, was published in March 2011.
The Sword of the Dragon series primarily falls into the Christian Fantasy genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.