Best-selling Shirer Continues Popular Tween Fiction Series: The Prince Warriors and the Unseen Invasion NASHVILLE, Tenn. (October 31, 2016)—One day, New York Times best-selling author and Bible teacher Priscilla Shirer’s son asked, “Mom, will I ever be in a battle?” That one question was the inspiration for her kids’ series, THE PRINCE WARRIORS. The Prince Warriors, first book in the trilogy, reached the number one position on both the ECPA and CBA Juvenile/Children’s Bestselling Lists, prompting series fans to eagerly…