Having announced to the folks of Cody, Wyoming, that she intended to shoot a man with her father's .38, it was little wonder that Delia Brand was arrested for just such a crime. But what the police didn't understand was that Miss Brand had marked another man for harm and was entirely innocent of the crime committed. Then who shot Dan Jackson with Delia's .38?

To find the answer, Delia has to go back to the unsolved murder of her prospector father in the Silverside Hills, only to discover that someone close at hand had a very good reason to use her gun—and mine a motherlode of murder.