Born human and raised as a wolfbut forever destined to be a monster Abandoned as a child, Gruff is taken in and raised by a Wolfmother. She teaches him to survive in the wildand to be wary of the Legwalkers. When a chance encounter brings Gruff near humans again, he wants to know more about this world to which he no longer belongs. But as he soon discovers, he doesn't really fit in with the wolves either. As Gruff feels his body change into that of a monsterand hears the evil call coming from others like himhe knows it's time to face the terrible truth about himself.