An anthology of first hand accounts of great explorers, The Challenge of the Unknown. offers excerpts from the writings of contemporary figures, marked not only by their unusual courage, but for that spirit of high romance which drives men to chart the terrible regions of uncertainty. With an introduction by Sir Edmund Hillary, this anthology offers the writings of Izzard, Byrd, Shackleton, Lindbergh, and many others of the same calibre, all of whom describe that moment which might be considered a pinnacle in their brilliant careers. Illustrated with twelve photographs, and superbly edited, this anthology is distinguished both by its intrinsic excitement and by the excellence with which its contributors write.