New York Times bestselling author Chris d'Lacey spins the epic conclusion to his saga of the original clash between humans and dragons.From Erth to the dragon homeworld, Ki: mera, everything has been forever changed by the meeting of dragons and humans. Their fates have become inextricably intertwined -- and their story will transform the very fabric of time.Ren, the human boy, now has unprecedented powers. With his control of a magical horse, his abilities scare even the Wearle's most formidable dragons.Yet the dragons fear the rise of the dark dragon Graven even more, and rumors run rampant that the dragons who came first may have known more than anyone realized. As the implications of the dragons' colonization expand, new creatures are drawn into the conflict, and Gabrial and Grendel will travel beyond the ends of the Erth to save their two young wearlings.In this epic and sweeping third installment of New York Times bestselling author Chris d'Lacey's Erth Dragons trilogy, new powers and new worlds collide in a blazing conclusion.