Crossroads of Freedom: Antietam

James M. McPherson is a Pulitzer Prize-winning, New York Times best-selling author, and America's leading Civil War historian. In this powerful book, he reconstructs the gripping Battle of Antietam-the single bloodiest day in the history of American combat. In stunning detail and with remarkable insight, McPherson makes a convincing case that Antietam was the battle that changed the course of the war.