In the second of this two-part series Miranda Sawyer catches a glimpse of high Art, high society and high prices as she explores the contemporary auction market at London's oldest auctioneers. As some of the most expensive and rare privately owned artworks in the world are presented to an international audience for a week of sales in London, we ask who buys what, and why? We discover how the auction house has adapted its sales to survive the recession and discuss where this barometer of the art market is going next. Producer: Eleanor Thomas A Harcourt Films production for BBC Radio 4.