A captivating, utterly original combination of travel-adventure memoir and historical re-creation, All Elevations Unknown charts Lightner’s exhilarating, often harrowing quest to ascend the mountain Batu Lawi in the face of leeches, vipers, and sweat bees, and to keep his team together in one of the earth’s most treacherous uncharted pockets. Along the way, Lightner reconstructs a fascinating historical narrative that chronicles Tom Harrison’s adventures on Borneo during the war and illuminates an astonishing piece of forgotten World War II history. Rife with suspense and vivid detail, the two intertwining tales open up the island of Borneo, its people, and its history in a powerful, unforgettable way, and take adventure writing to new heights.