The Turning Tide — Diana Pharaoh Francis

They were the best of friends: Ryland, the son of the king, is bound by loyalty. Shaye is both a majicar and a Weverton, both rebellious factions. Fairlie, a fiery metal-smith, is the iron bond that held them all together. Until now.

Crosspointe's greatest advantage at sea is its ship's compasses--but the compass makers are dying. Without them, Crosspointe will fall. To save his country and repel the coming Jutras invasion, the king orders Ryland to commit an unforgivable act. And soon Ryland, Shaye, and Fairlie find themselves at war--with each other.