Erin Hunter, the #1 nationally bestselling author of the Warriors series, is back with book two in the New York Times bestselling Survivors series about a dog named Lucky. AHidden Enemy was praised by Kirkus as "perfectly crafted" in a starred review. It will be welcomed by all fans of epic animal fantasy adventure.

After discovering a forest filled with prey and fresh water, Lucky and the Leashed Dogs are sure that they have found their new home. But a fierce pack of Wild Dogs has laid claim to the land and their menacing Alpha is determined to make sure that no other dogs settle there. Now Lucky finds himself forced to go behind enemy lines--and he has to decide which dogs will ultimately be his true allies.