The body in the arroyo belonged to a man who’d made his living plundering ancient Indian sites. And the only witness to the crime would not change his story: a demon had killed his friend. Sheriff Cliff Lansing has an unexplained death on his hands, and it’s only the beginning. In Las Palmas, New Mexico, a US senator is on his way to meet a Zuni shaman who is holding up a land swap involving 150,000 acres in New Mexico and Arizona. The senator intends to push the deal through. But in a long, dark night on the high desert, he is led into a storm of violence and shame.

From a New Mexico arroyo, a bullet-ridden body has been mysteriously dragged to a highway. In a small town, a lawman is swamped by complaints of coyote attacks. On Navajo land, a young man faces the truth about who he is, where he comes from, and where he must go. Investigating the murder of a Navajo leader, Sheriff Cliff Lansing comes up against an official whitewash that has branded the victim a drug dealer. But Lansing's deputy, Gabe Hanna, has already made a connection between the dead man and a multimillion-dollar timber deal on Navajo land.

Sheriff Cliff Lansing is a single father, a part-time rancher, and an overworked lawman suddenly faced with a serial killing spree. A madman is moving through San Phillipe County on New Mexico's Continental Divide, leaving an owl feather by each of his ritually mutilated victims. While Lansing first suspects that Apache tribal politics lie behind the killings, he cannot ignore a troubled boy who claims to see the murders in his sleep, and then leads Lansing to the bodies. Suddenly, the sheriff is plunged into a bizarre world of Native American legend and magic.

In an air-conditioned university office, a man lies dead, brutally bludgeoned. A hundred miles away, in the high, arid New Mexico mountain country that Sheriff Cliff Lansing is sworn to protect, an animal is devastating ranchers' livestock, and is now turning to human prey.... For Lansing, the two cases are linked. The murder victim was part of an archaeological dig, and a local Indian believes that the animal killings have been unleashed by the excavations.

Strange lights are spotted over the high desert of northern New Mexico. Unmarked helicopters fly to and from Archuleta Mesa on the Apache Reservation. A ranch foreman is found dead. And, after nearly a decade, livestock are being killed and mutilated, again. Deputy Cliff Lansing is running for his first term as sheriff. In the midst of his campaign, the one-time rancher has to deal with divorce, the loss of a friend, and the gaggle of UFO enthusiasts who have descended on San Phillipe County.