Ernest Shackleton is one of history's great explorers, an extraordinary character who pioneered the path to the South Pole over 100 years ago and became a dominant figure in Antarctic discovery. A charismatic personality, his incredible adventures on four expeditions to the Antarctic have captivated generations. He joined the Empire's last great endeavor of exploration: to conquer the South Pole with Scott on the Discovery expedition. A clash with Scott led to Shackleton being ordered home and started a bitter feud between the two. Shackleton's riposte was the Nimrod expedition,...