Darkness Chosen

A thousand years ago, a brutal warrior roamed the Russian steppes. Driven by his craving for power, Konstantine struck a terrible bargain. In return for the ability to change at will into a cold-hearted predator, he promised his soul, and the souls of his descendants, to the devil. Then one day a dangerous prophecy reveals the truth: one family has been chosen to battle the darkness — or face damnation.