The era of humans has fallen under the invasion of beings known as Richets...but the world is not empty without them. The Groupers-a sentient, diverse non-human species-are left to determine the fate of the rest of the world. But they, too, struggle to live now, in fear of the murderous, carnivorous Dreamslaughterers that scour the land. Zo and her Grouper clan live in hiding with the constant reminder that they are prey...never taking chances, always on-edge. But when Zo comes across an odd lone Grouper traveler, she discovers that he has more dangerous plans for survival that she cannot refuse...and a secret the likes of which...their world has never seen.