The Lightning Tree

When U.S. Marshal Sam Begay first discovered the wolf hair clues, he never expected they would lead him to a string of murders. The Reservation deaths appeared accidental, random, and unrelated until he found a connection in an old High School yearbook. An ancient, Spanish gold coin he carried was part of the mystery, and it put his own life in danger as it drew him closer to an evil, malignant being called a skinwalker.