Two years after the murder of a prominant north Texas banker has been solved and the killer put in jail, Dallas private eye Bat Garrett is hired by an attractive widow to find out why her husband was killed. The police (and everyone else) say it was just a robbery gone bad, but the widow thinks differently. With Jody Anderson still on crutches from her horrific ordeal in "The Nice Guy" but by his side as always, Bat undertakes a case that leads him through an amateur archaeological society in Dallas and into a centuries old mystery in the ancient ruins of Mesa Verde in southwest Colorado. Did the unassuming banker uncover something someone else would rather have stayed hidden?