Decoding N**i Secrets

By mid-1940, the German Army had conquered all of western Europe and H****r began to tighten the noose around Britain. In the Atlantic, German U-boats were decimating Allied convoys, threatening to cut off Britain’s only lifeline. But Churchill had an unusual secret weapon: crossword fanatics, chess champions, mathematicians, students and professors, Americans and British. They were recruited with one common aim: to unlock the secrets of Enigma, a machine that concealed Germany’s war plans in a seemingly unbreakable code. If Enigma could be penetrated, everything H****r plotted could be known in advance. At Bletchley Park, there unfolded one of the most astonishing exploits of the Second World War.