Island of Shadows, Paperback/Erin Hunter

The journey home begins. . . . Toklo, Kallik, and Lusa survived the perilous mission that brought them together. Now, after their long, harrowing journey, the bears are eager to find their way home and share everything they've learned with the rest of their kinds. But the path they travel is treacherous, and the strangers they meet could jeopardize everything the Seekers have fought for.