In the age of adventure, when dirigibles coasted through the air and vast swaths of the Earth remained untouched and unseen by man, one pack of relentless explorers competed in the race of a lifetime: to be the first aviator to fly over the North Pole. What inspired their dangerous fascination? For some, it was the romantic theory about a “lost world,” a hidden continent in the Arctic Ocean. Others were seduced by new aviation technology, which they strove to push to its ultimate limit. Th...