The Edge
Dick Francis Audio Book

To the Jockey Club, the racing world would be a better place without Julius Apollo Filmer. An expert in corruption with a devastating line in witness intimidation - and proving to be a slippery character to put behind bars. Baffled, they call in undercover security agent Tor Kelsey to keep an eye on Filmer and his associates. It turns out to be a mission that takes Tor from the finest of English racecourses to the wild Canadian interior - on a luxury transcontinental train journey to end them all.