Rowen Locke has won the battle. But from the shadows comes an ancient enemy--a calculating and merciless foe who has been waiting centuries for the chance to strike. Despite all he has already suffered and sacrificed, Rowen finds himself mired in a war bigger and more terrible than anything he could have imagined.The world's only hope lies in Knightswrath, whose hard-won powers he has only begun to understand, let alone control. Calling...