The year is 1950, and old timers connected to the outlaw Billy the Kid are popping up dead in the sleepy town of Fort Sumner, New Mexico. It's up to the local sheriff, Hondo Dumez, to figure out why. Matters become complicated upon the news that a man claiming to be a surviving Billy the Kid is about to meet with the current governor of New Mexico. Added to the mystery are whispers of a secretive organization known as the Santa Fe Ring and rumors of something called a Skinwalker haunting the area. As the case twists and turns its way from the haunted halls of Dorsey Mansion to the ice caves of the Malpais, Dumez won't just need all the help he can get to solve the greatest mystery of the Southwest, he'll be lucky to survive the investigation at all.