From New York Times best-selling author Priscilla Shirer, this epic series follows a group of young friends as they discover the unseen world of Ahoratos. There they must fight together as Prince Warriors, using their armor to battle unimaginable dangers and learning to face a very real enemy. This new paperback boxed set contains all four books in the series: The Prince Warriors , The Prince Warriors and the Unseen Invasion The Prince Warriors and the Swords of Rhema , and The Winter War . Readers will also be thrilled to discover a fold-out poster featuring a map of Ahoratos, the unseen realm. It's the perfect gift for old and new fans alike.