Fuiseog, King of the Fae and former human adopted by the previous monarch, has played a slow war game with his uncle, Duke Cailey, for years over the throne. But when Fuiseog's right-hand and consort, Oisín, is killed on the battlefield, the game is over. Now the fae realm, forever enjoying peace, will be thrust into a bloody war it's unprepared for, and Fuiseog will stamp out the embers that tore his lover away.  Meanwhile, Oisín comes face-to-face with the death god of his people, and he's given a second chance at life so long as he can journey across the blessed lands and convince Aengus, the god of love, to send him back to Fuiseog. The only catch is he has thirteen days before he completely turns into a deer from the magic of the death god, and the journey is perilous. And should he succeed, will he even be returning to the lover he remembers?