City of Songs — Anthony Ryan

Atheria - the fabled City of Songs. The shining jewel of the third sea where the masked Exultia caste hold sway and vie to outdo each other in their patronage of the arts, sometimes with deadly consequences....Guyime, wandering, dethroned king of the Northlands, is drawn to the Atheria by his quest for the Seven Swords, the demon-cursed blades of legend. But to claim the next sword he must first solve a seemingly impossible murder - a puzzle that, once untangled, will unveil secrets so dark they could bring the City of Songs to utter ruin. Continuing the epic tale of The Seven Swords, City of Songs is an action-packed, darkly magical mystery from the New York Times best-selling author of the Raven's Shadow and Draconis Memoria trilogies.