In Gun of a Killer, Luke Wade has ridden a meandering trail for three years, searching for the owner of the ornate, silver-inlaid .45 he wears at his hip. The man who had once carried that gun murdered Luke Wade s father, and Luke cannot rest until he has tracked him down. But a man cannot live on hate alone. He has to have money in order to stay alive while he hunts. So Luke takes a job guarding a cattle drive against rustlers and amid the trail dust and gunsmoke that swirls around that drive, Luke Wade finds plenty of use for the gun he carries."