"In 1872 the mistress of a neighbouring landowner threw herself under a train at a station near Tolstoy's home. This gave Tolstoy the starting point he needed for composing what many believe to be the greatest novel ever written. In writing Anna Karenina he moved away from the vast historical sweep of War and Peace to tell, with extraordinary understanding, the story of an aristocratic woman who brings ruin on herself. Anna's tragedy is interwoven...