James M. Scott’s “Empire of Ashes” tells the harrowing story of America’s bombings of Hiroshima and Nagasaki in the dramatic struggle to end World War II.

Through interviews with survivors and accounts gleaned from Japanese sources, the book combines the attacks’ heart-wrenching details with their causes and consequences, from debates within the Manhattan Project at Los Alamos, Oak Ridge, and Hanford to the fallout that would alter decades of life in Japan.