A nameless terror surges through centuries to engulf the soul of Charles Dexter Ward, a brilliant New England antiquarian. Evil spirits, malefic gods whose memory lives on in whispered legends and fear-stricken superstitions, still lurk in catacombs beneath the surface of a blighted land. Ward is driven to unleash these loathsome horrors upon a defenceless world, possessed by the demonic shade of his ancestor Joseph Curwen, a warlock steeped in the blackest arts of magic. Now Ward too must master these obscene rituals, and pay the price in blood. Human blood.