"Drawing on previously neglected family sources and original interviews, Anna Pasternak explores this hidden act of moral compromise by her great-uncle, and restores to history the passionate affair that inspired and animated Doctor Zhivago. Devastated that Olga suffered on his behalf and frustrated that he could not match her loyalty to him, Boris instead channeled his thwarted passion for Olga into the love story in Doctor Zhivago."--Amazon.com....