William Broad: "The Oracle" (Penguin)
She advised the great Greek philosophers, kings sought her counsel, and armies wouldn't march without a sign from her for guidance. The Oracle at Delphi was a real person with seemingly mystical powers derived in part from inhaling a strange vapor. The scientific search for the truth behind the legend.
senior writer at the New York Times and author of six books, including "Germs: Biological Weapons and America's Secret War."