A Sudden Change of HeartIn the blockbuster storytelling tradition that is Barbara Taylor Bradfords hallmark, here is an extraordinary novel about a remarkable young woman and the people whose lives she touches. At thirty one Laura Valiant is a successful art historian who runs her own art advisory and acquisitions company. She and her husband Douglas Casson, a Wall Street lawyer, have a happy marriage marred only by the fact that they are still childless. But Lauras life