IN 1914, FAWCETT was traveling with Costin and Manley in a remote corner of the Brazilian Amazon, far from any major rivers, when the jungle suddenly opened into a huge clearing. In the burst of light, Fawcett could see a series of beautiful dome-shaped houses made of thatch; some were seventy feet high and a hundred feet in diameter. Nearby were plantings of maize, yucca, bananas, and sweet potato.
