While God Slept: A Novel of World War II

Karl Wolfe is new to his assignment as a military attache posted to the U.S. Embassy in Berlin in 1938. Wolfe's superiors in Washington have another, more sinister purpose in mind for the young soldier: determine the intent of Hitler's military leadership and to set up an espionage operation inside the Third Reich.
Wolfe inadvertently obtains a mind-boggling package containing film of top-secret Nazi documents confirming a conspiracy to trade a portion of Europe - and its Jews - for "peace in our time." Intended for the Jewish resistance, the documents originated in the heart of the Reich, in the Abwehr, the German intelligence operation. Appalled by the plans for mass murder, a young Abwehr officer, Maj. August Niedenz, contacts Wolfe, and although the two have vastly different objectives, they form a strange alliance to further each other's very different goals.
Wolfe befriends beautiful Maria Hylga O'Brien, one of the world's most sought-after atomic scientists, and becomes mired in a swamp of deadly intrigue and obstructionism within the Allied camp that threatens to undermine Overlord, the cross-channel invasion of Europe, as well as the race to build the atomic bomb.
It is already May, only three weeks before D-Day, and secrets of all kinds are unravelling. From Berlin to Washington to London, Wolfe races to cut through the web of duplicity that stretches from Hitler and his generals to the British high command, all the way to the inner sanctums of the Vatican, ending on the sands of Utah Beach, June 6, 1944, and the shattering climax of While God Slept.