The forest heaves and splits in a terrible quake, and Griffin, a newborn Silverwing, is sucked deep into the earth. Drawn into the underworld, he must confront the ghosts of his father's past before they threaten to take him, too. When Griffin is sucked into the Underworld, his father Shade must act fast--for legend says that if the living stumble into the land of the dead, they only have a short time before death claims them as its...