A young female wolf, transplanted from her Canadian home to Yellowstone Park, “roams, like a castaway, in a land that is pure unknown.” After an unsuccessful elk hunt, she howls in a way that would have once drawn her family to her, but now is answered only by an owl’s hoot. Seasons pass and the wolf grows into a two-year-old adult, fully integrated into her Yellowstone habitat. She meets a male, and the two become a mated pair, producing a litter of pups and the start of their own family pack. This first-rate text conveys drama without anthropomorphizing the wolves, while the watercolor, pen, and pencil illustrations capture the beauty of the animals and the setting. A concise author’s note provides background context with a summary of the wolf reintroduction program at Yellowstone. In fact, the wolves of the story are modeled after Female 7 and Male 2, the founders of the Leopold Pack, the first naturally formed wolf pack in Yellowstone following reintroduction. (Ages 5–9)