Grace Bradley went to work at Riverton House as a servant when she was just a girl, before the First World War. For years her life was inextricably tied up with the Hartford family, most particularly the two daughters, Hannah and Emmeline. In the summer of 1924, at a glittering society party held at the house, a young poet shot himself. The only witnesses were Hannah and Emmeline and only they--and Grace--know the truth. In 1999, when Grace is ninety-eight...