On October 15, 1959 a seventeen-year-old boy was stricken with polio and hospitalized for an entire year, emerging with need of a wheelchair -- a quadriplegic for life. On September 16, 1964, less than five years later, having finished his university studies, he sat alone on a prop-driven Constellation bound for Colombia, South America. He was about to embark on eleven years of adventures -- from the dim, forbidden forests of the Darien south of Panama...