Standing by the waterfall waits Vala the Water Hag. She is never far away from water, and every seven years she must make sacrifice to it or lose her powers. She must have the boy Owain; there can be no other. Only one man stands between the Hag and ultimate power, the brooding Corin, the Giant Killer, and half mortal son of a Fairy Woman. Yet this is a man haunted by a death and a secret never to be told...