There are 3 books in The Doppleganger Chronicles series.
The Doppleganger Chronicles series does not have a new book coming out soon. The latest book, The Great Mogul Diamond (Book 3), was published in May 2011.
The first book in The Doppleganger Chronicles series, The First Escape, was published in September 2008.
The Doppleganger Chronicles series primarily falls into the Christian genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.