Rosanne Parry is the author of the bestselling novels A Wolf Called Wander, A Whale of the Wild, and A Horse Named Sky as well as The Wolf Effect, a picture book illustrated by Jennifer Thermes. These "Voice of the Wilderness" stories center the voices of wild animals and focus on their struggle to survive in a dangerous and changing world. Based on rigorous research and inspired by the real animals of the western United States, Rosanne's books are treasured by teachers and librarians and adored by animal-loving readers of all ages. The author lives with her family in Portland, Oregon, and writes in a treehouse in her backyard.

When an enemy pack attacks, Warm, the smallest wolf in the pack, is left alone to defend and feed four pups.