LONDON, 1944. In advance of Operation OVERLORD, the British Secret Service devises an audacious gambit: the false-flag recruitment of a German admiral who secretly is a communist. There isn't much time. The admiral will be approachable only during the brief window when he travels to neutral Sweden at the head of a Nazi delegation. For the daring scheme to succeed, the British first must borrow from the Americans a brilliant young analyst, Linnea Thorsell.