More than a half-century ago, the naturalist Farley Mowat was sent to investigate why wolves were killing Arctic caribou. Mowat's account of the summer he lived alone on the frozen tundra—studying the wolf population and developing a deep affection for the wolves (who posed no threat to caribou or humans)—is today celebrated as a classic of nature writing, at once a tale of remarkable adventures and an indelible record of the myths and magic of wolves.