When his little sister Annad is snatched from Rin by a monstrous flying creature, Rowan must travel to the distant land of Rin's ancient enemies, the Zebak, to rescue her. The journey is a perilous one, and Rowan and his companions have only a series of mysterious, riddling prophecies to guide them. At the end of their quest they come upon an even greater mystery, and an extraordinary secret is revealed.