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