This is the story of U-977, the German submarine that escaped to Argentina at the end of World War II. Before surfacing near the west coast of Africa, the vessel had spent a remarkable sixty-six days submerged. When it was first published in 1953, opinions were sharply divided between those who deplored the apparent extolling of a vicious form of warfare, and those who found Heinz Schaeffer's account a revealing picture of the German Navy's training...