The Edge/In the Frame-Dick Francis-Omnibus

THE EDGE: A high-class, transcontinental horse-racing junket should be an idyllic getaway for the super-rich.But one passenger on this train is a sociopath, a genius at blackmail and criminal corruption—and he plans to take everyone for everything they've got. IN THE FRAME: Charles Todd—a renowned painter of horses—is shocked when he turns up at his cousin Donald’s house for a weekend visit to find his cousin’s young wife dead on the floor—and Donald the police’s prime suspect. Determined to prove Donald’s innocence, Todd trails a set of clues from England to Australia to New Zealand, only to realize that someone is trailing him. Someone with every intention of taking him out of the picture for good…