Paul Rosbaud, the subject of this biography, was truly an enigma wrapped in a puzzle: The top science editor in wartime Germany -- a very prestigious position at that time -- Rosbaud secretly informed the Allies of Nazi scientists' work, particularly in rocket propulsion and in atomic weapons. Rosbaud made frequent trips during the war to Sweden and Switzerland and passed on the secrets to Allied contacts. Author Kramish has done a fine job in digging out the background of this fascinating story and readers will come away with the feeling that the Allied governments of the time -- and of this day possibly -- never wanted Rosbaud's story to be told. One problem is that Rosbaud certainly informed his Allied contacts that the Germans had no serious atomic bomb effort underway. The problem -- which persists to this day -- is that the Allies, primarily the U.S. and the U.K. maintained that they had to build atomic weapons because they claimed they feared the Germans were building the terrible weapons. So, if the Germans had no serious atomic projects underway, as was the case and the Allies knew that, why did the Allies make the bomb? It's a story that hasn't been answered more than a half-decade after Hiroshima and Nagasaki. At any rate, Kramish has a fascinating tale to tell here and if his writing style is somewhat pedantic at times, the material is so interesting that the story overcomes the style.