The Defender of God — Kurt Kammeyer

At the dawn of the Fifth Eon, Abdiel the Seer adopts a young hunter-gatherer named Brynmor. Abdiel educates Brynmor in the duties of a Seer. Brynmor leads his tribesmen across the Olami Mountains to the land of Ganedom, where they face a dual threat from the invading Nordsmen and the space-faring Mangalans. Which of these three civilizations will survive this conflict?