A witch put to death in 1692 swears vengeance on her persecutors and returns to the present day to punish their descendants.
Ex-soldier Frank Brayker is the guardian of an ancient key that can unlock tremendous evil; the sinister Collector is a demon who wants the key so he can initiate the apocalypse. On the run from wicked mercenaries for almost 90 years, Brayker finally stops in at a boarding house in New Mexico where -- with the help of its residents -- he plans to face off against the Collector and his band of ghouls, preventing them from ever seizing the key.
A Muslim ambassador exiled from his homeland, Ahmad ibn Fadlan finds himself in the company of Vikings. While the behavior of the Norsemen initially offends ibn Fadlan, the more cultured outsider grows to respect the tough, if uncouth, warriors. During their travels together, ibn Fadlan and the Vikings get word of an evil presence closing in, and they must fight the frightening and formidable force, which was previously thought to exist only in legend.
An all-expenses-paid international search for a rare copy of the book 'The Nine Gates of the Kingdom of Shadows' brings an unscrupulous book dealer deep into a world of murder, double-dealing and satanic worship.