Britain's top ministers discovered a fanastic new secret weapon - a human one. He was William Conrad, a Polish refugee, discharged from the British Army with a medal for gallantry at Dunkirk. Back inLondon, his powerful and persuasive patriotic newspaper articles won him the highly sensitive post of director af propaganda strategy - and personal thanks from Churchill himself. Everyone was impressed - except a single man in Counter-Intelligence, who had noted a disturbing fact: Conrad bore a strange resemblance to a Nazi agent who had disappeared in Poland. If the hunch were true, one of the most bizarre and daring feats of espionage in World War II was about to unfold under the very noses of the highest British officals - and Counter - Intelligence was helpless to stop it.