Gerry Anderson visits the annual Orby Sales in County Kildare, where the cream of Irish bloodstock is at auction. The hot hooves of the magnificent racehorses contrast with the cool heads of their sellers and prospective buyers, who include some of the world's richest owners. Around £24 million is spent during the course of the two-day sale, in an atmosphere charged with excitement and tension. But as Anderson, a stranger to the world of thoroughbred horses, admits: "It's almost like travelling in a parallel universe."