Get two books for the price of one in this limited-edition paperback, which includes the first two action-packed novels in the New York Times bestselling Survivors series. Available for a limited time only, Survivors: The Empty City and A Hidden Enemy is the perfect introduction to the newest epic animal fantasy series from Erin Hunter, author of the bestselling Warriors books.Lucky has always been a Lone Dog—until a devastating earthquake changed his world forever. He has no choice but to fall in with a Pack of Leashed Dogs who have been separated from their owners. But they aren't the only dogs in the forest. . . . Readers will be hooked on the rich world and pulse-pounding action of Survivors, which Kirkus Reviews hailed as "wild and wonderful adventure." The time has come for dogs to rule the wild!