In a malarial outpost in the South American rain forest, two misplaced gringos converge and clash in this novel from the National Book Award-winning author. Martin Quarrier has come to convert the elusive Niaruna Indians to his brand of Christianity. Lewis Moon, a stateless mercenary who is himself part Indian, has come to kill them on the behalf of the local comandante. Out of this struggle Peter Matthiessen creates an electrifying moral thriller-adapted into a movie starring John Lithgow, Kathy Bates, and Tom Waits. A novel of Conradian richness, At Play in the Fields of the Lord explores both the varieties of spiritual experience and the politics of cultural genocide.