To the dark tower

the long version

Since the dawn of civilization, the secret cults-hiding in the dark corridors and gray shadows of night-have ruled the world. Studying cave drawings in the south of Spain, Joan Lambert stumbles on evidence linking the secret witch masters of today with the damned of ceturies past...and the dark minds of today control powers as great as the acients. Discovered by guardians of the dreaded knowledge, Joan flees for her life...but finds herself unable to outrun the nightmare pursuers. Only one place offers the hope of safety and then she finds that it too is puppet of the witch cult. (from the book cover)