Private investigator Fenton Hardy becomes injured while working on a case of stolen gold in Montana and sends a cryptic message urging his sons, Frank and Joe Hardy, to join him. The fifth installment in The Hardy Boys mystery series thrusts the teen detectives into a world of danger and deception as they contend with a disastrous mine cave-in, a raging blizzard, vicious timber wolves, and the notorious outlaw...

Private investigator Fenton Hardy becomes injured while working on a case of stolen gold in Montana and sends a cryptic message urging his sons, Frank and Joe Hardy, to join him. The fifth installment in The Hardy Boys mystery series thrusts the teen detectives into a world of danger and deception as they contend with a disastrous mine cave-in, a raging blizzard, vicious timber wolves, and the notorious outlaw Black Pepper and his gang. Brilliantly crafted suspense-filled scenes and unexpected turns reveal a thrilling tale of bravery and resilience as well as an exhilarating test of courage and wit.