Although born to rule, Aidan lives as a scribe in a remote Irish monastery on the far, wild edge of Christendom. Secure in work, contemplation, and dreams of the wider world, a miracle bursts into Aidan's quiet life. He is chosen to accompany a small band of monks on a quest to the farthest eastern reaches of the known world, to the fabled city of Byzantium, where they are to present a beautiful and costly hand-illuminated manuscript, the Book of...