For the Navajo, human mood and behavior are shaped by winds streaming through the mind—and evil flourishes when the dark wind gains control. Raised to believe in an orderly world, Officer Jim Chee encounters pure irrationality in his new post along the troubled Navajo-Hopi border. An unidentified murder victim, an eccentric burglar, a vandal obsessed with a single windmill, and a mysterious plane crashing in the predawn darkness all defy logic. As Chee searches for the missing contents of the downed aircraft, he is pulled into a shadowy realm of Hopi sorcery and Navajo witchcraft. Drawing on his intimate knowledge of Southwestern cultures, Tony Hillerman weaves an intricate mystery within a mystery, driving toward a tense climax in an ancient stone village on a night when only the Kachina spirits are permitted to walk.