When Tara Caimi was twenty-eight years old, she moved from Pennsylvania to Utah to support her boyfriend's dog mushing dream. Nick was confident and courageous, outgoing and adventurous--everything Tara was not. Tara had always suffered from anxiety-related ailments, but in Utah her health steadily deteriorated. Living with Nick revealed some unexpected lifestyle differences, and the culture she encountered rendered her a perpetual outsider. The only comfort she found was in her surrogate family of sled dogs. As personal failures piled up amidst desperate feelings of isolation, her health...