An English eccentric and adventurer, Tom Harrison (1911-1976) sought knowledge and reknown in a number of fields, while breaking most of the rules of civilized society. He was a precursor in the field of modern market research; he won the DSO for his World War II service in Borneo; he led efforts to save the orangutan, the green sea turtle, and other endangered species; and he discovered the oldest human skull known at the time. This story of Harrisson's extravagant, controversial life offers an insightful look at a charismatic figure who offended as many people as he impressed at the twilight of colonialism on the fringes of the British empire.