Emily Hahn was a woman ahead of her time, graced with a sense of adventure and a gift for living. Born in St. Louis in 1905, she crashed the all-male precincts of the University of Wisconsin geology department as an undergraduate, traveled alone to the Belgian Congo at age 25, was the concubine of a Chinese poet in Shanghai, bore the child of the head of the British Secret Service before World War II, and finally returned to New York to live and...