This is the story of General Hans Kammler. He was responsible for the construction of the concentration camps and slave labor camps. He supervised Wernher von Braun, famous rocket scientist, who helped with the American space program after the war. He was also a subordinate of Henrich Himmler. He was declared dead at the end of the war, though nothing was ever presented as proof. This book was very interesting trying to uncover what the real story behind his disappearance was. I really enjoyed this book. I learned a lot about this man, when I hadn't heard of him before.