The Keep

In F. Paul Wilson's gripping first installment of the Adversary Cycle, "The Keep," a Nazi commander stationed in a remote Transylvanian castle faces a chilling threat as invisible forces begin to kill his men, leaving behind bloodless, mutilated corpses. To confront this mystery, an elite SS extermination squad enlists the help of a local Jewish folklore expert, who may hold the key to understanding the terror at play. As the tension escalates, a mysterious figure emerges, awakening from a nightmare on a path toward destiny, setting the stage for a clash between humanity's darkest evils and the unknown forces they have inadvertently unleashed.