Sitting in Darkness follows the paths of three people in the Philippines: an American soldier of fortune, a Filipino revolutionary leader, and an American historian who left the safety and limits of the library for the hazards of the jungle. What emerges is a narrative in which past and present are unforgettably entwined. In March 1982, David Haward Bain hiked 110 miles through the mountainous, sparsely populated coast of Luzon. Led by pygmy guides,...