John Hardin is a desperate man.? When a train carrying official US currency paper explodes in his town, he's the prodigious Black Diamond Detective Agency's sole suspect.? John is innocent, but his wife is missing, his old friends are coming back to haunt him--with guns and explosives--and he's on the run through rural Missouri.? ? THE BLACK DIAMOND DETECTIVE AGENCY?is based on the historical journals of Arthur James Quindlen, the agency's founder.?...