Sixty-five million years ago, aliens transplanted Earth's dinosaurs to the moon of a gas-giant world. Now, intelligent saurians-the Quintaglios-have emerged. The Face of God is what every young saurian learns to call the immense, glowing object which fills the night sky on the far side of the world. Young Afsan is called to distant Capital City to ap-prentice with Saleed, the court astrologer. But when the time comes for Afsan to make his coming-of-age pilgrimage and gaze upon the Face of God, his world is changed forever-for Afsan is the Quintaglio counterpart of Galileo. He must convince his people of the truth about their place in the universe before tidal forces rip the dino-saurs' new home apart. So begins Robert J. Sawyer's classic trilogy, the Quintaglio Ascension, an early masterpiece by the latest winner of the Hugo Award for Best Novel.