Prince of the spear / David Hair.

With the Leviathan Bridge critically damaged and its towers unable to control the skies between Yuros and Antiopia, the East has invaded the West. A vast windfleet, constructed in secret, is winging across the Pontic Sea. The Rondian Empire is divided and weak. Empress Lyra has barely survived a coup, triggered by a masked cabal whose members still remain concealed in the highest echelons of her court. Only Lyra's secret affinity to the heretical power of dwyma saved her - but that affinity is also her most dangerous weakness. As empires clash, lives are torn apart and long-held beliefs are overthrown by circumstance and desperation. A young queen whose court is riddled with traitors turns to the wrong people in her hour of need. Two princes clash in the skies, the fate of two nations riding on their skill. Two brothers must reconcile disparate cultures to regain their kingdom. An idealistic rabble-rouser sees a chance to strike. And a small group of dwymancers grope blindly for knowledge in a race against time before the masked Cabal strike again.