Book title: Fiend’s Gold (Author:Wentworth M. Johnson)
A couple of hundred years ago, a wild and unruly family fell upon a floundering ship filled with gold. Gold fever and bandits destroyed the Fiend family, but through their cunning the treasure was hidden for almost 200 years. Edgar Reyner, a multimillionaire, bought the island reputed to be the hiding place of Fiend’s gold. He, too, became a victim of gold fever and is killed for his efforts. Edgar left the bulk of his estate to his unruly and lazy nephew William. Along with his grandmother William visits the island to discover murder and mayhem.