Renegade (The Lost Books, Book 3) (The Books of History Chronicles) HB by Ted Dekker

One of the chosen has gone renegade.Turning his back on all that he once believed, Billos enters the forbidden book and lands in a reality that is as foreign to him as water is to oil. A place called Paradise, Colorado, where he discovers he has strange new powers given to him courtesy of a mysterious figure known as Marsuvees Black.The chosen four have survived the desert, escaped the Black Forest, battled the Horde, and added a spirited refugee to their number. But nothing has prepared them for the showdown that Billos, the renegade, will lure them into.