A girl coming of age wants to escape the ever-present duke on his Spire-island and see the world. A raider captain sailing the straits and west seas must cope with her past catching up while her present threatens to run away from her. Two dragon riders must find their way in the world when their worlds diverge in unexpected ways. A new emperor on the mainland must learn to rule amidst attacks from his adversaries. A girl in the mountains must remember what she has forgotten in order to know who she needs to be. A boy on the other side of the mountains must train as an Engineer and learn the magical secrets of the art. And while each finds their own way, an evil is brewing far to the west of Lunamir...