This book is an analytical account of how Roald Amundsen used sledge dogs to discover the South Pole in 1911, and is the first to name and identify all 116 Polar dogs who were part of the Norwegian Antarctic Expedition of 1910-1912. The book traces the dogs from their origins in Greenland to Antarctica and beyond, and presents the author's findings regarding which of the dogs actually reached the South Pole, and which ones returned.