In the summer of 1881, the twenty-five men of the Lady Franklin Bay Expedition watched their ship sail for home from Discovery Harbor, just 500 miles from the North Pole. Commanded by the ambitious yet underqualified Adolphus W. Greely, this crew represented the first U.S. attempt to engage in scientific study of the Arctic. The frigid landscape offered the promise of great adventure-and unknown dangers. It was an expedition Greely eagerly anticipated...