From Erin Hunter, #1 nationally bestselling author of the Warriors series, comes the fourth book in the action-packed Survivors animal fantasy series. Full of "wild and wonderful adventure" (Kirkus Reviews, starred review), Survivors will thrill fans of Spirit Animals and Wings of Fire. Lucky and Alpha have reached a shaky truce, but tensions within the newly united Pack are still running high. As the dogs search for a home far away from the Fierce Dog camp, they discover that no territory is truly safe--and encounter a terrifying new Pack. Also includes a sneak peek at Survivors #5: The Endless Lake!