The Last One LeftBy: John D. MacDonald Soon to be a major new TV series When a yacht explodes in the Bahamas, apparently killing six people, Sam Boyleston, an attorney from Texas and the brother of one of the victims, is compelled to investigate the circumstances, as does Raoul Kelly, a newspaper reporter. After the disaster the yacht's burned captain was temporarily marooned on a small island, and soon it becomes apparent that one person is ruthlessly manipulating