Alexander II was Russia's Lincoln, and the greatest reformer tsar since Peter the Great. He was also one of the most contradictory, and fascinating, of history's supreme leaders. He freed the serfs, yet launched vicious wars. He engaged in the sexual exploits of a royal Don Juan, yet fell profoundly in love. He ruled during the "Russian Renaissance" of Dostoevsky, Tolstoy, and Turgenev -- yet his Russia became the birthplace of modern terrorism. His story could be that of one of Russia's greatest novels, yet it is true. It is also crucially important today.It is a tale that runs on parallel tracks. Alexander freed 23 million Russian slaves, reformed the justice system and the army, and very nearly became the father of Russia's first constitution and the man who led that nation into a new era of western-style liberalism. Yet it was during this feverish time that modern nihilism first arose. On the sidelines of Alexander's state dramas, a group of radical, disaffected you...