Masterton's third outing with the Manitou provides another spine-tingling excursion into the supernatural universe, the "black infinite lake that lies beneath our feet." The series hero, small-time scam artist Harry Erskine, is again drawn into danger by the anger of American Indian spirits. From the East Coast to the West, the white man's world is being torn asunder by ghosts seeking revenge, and Harry, as well as his companions Karen, Papago Joe the shaman, and E. C. Dude, is forced to combat the vengeful spirits. The eerie manifestations of the Manitou continue to dismay and baffle until the final, authoritative, chilling climax.