Sir Francis Younghusband was the last of the great imperialists—a dashing adventurer, who in 1903 single-handedly invaded Tibet, wiped out its entire army, and then became a mystic. Admired by H.G Wells and Bertrand Russell, he launched early assaults on Mt. Everest, held the world record for the 300-yard dash, was the first European since Marco Polo to travel from Peking to Central Asia, discovered the source of the Indus, and, as a spy, his presumed death nearly sparked an Indo-Russian war. The quest to discover this man led Patrick French from the Himalayas to Kashmir and into Tibet in search of clues.