It's a 104 degree day in Albuquerque when attorney/sleuth Neil Hamel gets a call asking her to go to southern New Mexico to help a wolf advocate who calls himself Juan Sololobo. Juan, who attracts trouble wherever he goes, is visiting the town of Soledad to give an educational program featuring his timber wolf, Sirius. After someone lets Sirius out of his pen, a federal official is murdered and Juan becomes the prime suspect. As Neil defends him she finds herself immersed in a deadly conflict between ranchers and environmentalists over wolf reintroduction.