The journey home begins. . . . Toklo, Kallik, and Lusa survived the perilous mission that brought them together, and now it's time for them to find their way home. Kallik and Lusa are ready to be among their own kinds again, but Toklo, devastated by the loss of their companion Ujurak, feels hopeless and afraid of what's to come. When the group reaches a shadowy island covered in mountains and ice, Kallik is sure they're almost back...