"A riveting tale of the previously unknown and fascinating story of the unsung angels who strove to foil the Final Solution."--Kirkus starred review

On November 25, 1944, prisoners at Auschwitz heard a deafening explosion. Emerging from their barracks, they witnessed the crematoria and gas chambers--part of the largest killing machine in human history--come crashing down. Most assumed they had fallen victim to inmate sabotage and thousands silently cheered. However, the Final Solution's most efficient murder apparatus had not been felled by Jews, but rather by the ruthless architect of mass genocide, Reichsf