Magic is risen. When magic returned to the world, it could have saved humanity, but greed and thirst for power caused mankind's downfall instead. Now once-human monsters called Howls prowl abandoned streets, their hunger guided by corrupt necromancers and the all-powerful Kin. Only Hunters have the power to fight back in the unending war, using the same magic that ended civilization in the first place. But they are losing. Tenn is a Hunter, resigned to fight even though hope is nearly lost. When he is singled out by a seductive Kin named Tomás and the enigmatic Hunter Jarrett, Tenn realizes he's become a pawn in a bigger game. One that could turn the tides of war. But if his mutinous magic and wayward heart get in the way, his power might not be used in favor of mankind. If Tenn fails to play his part, it could cost him his friends, his life…and the entire world.

Tenn is restless in the days following his victory against the Kin. He wants nothing more than to leave the Guild and get back on the road, to carry out the missive the spirits gave him. But his allies need to rest. Armies need to gather strength. And, perhaps most importantly, he has a birthday that his partner Jarrett desperately wants to make special.

Magic is sin Aidan desires only one thing: to rule. Arrogant, headstrong and driven by the element of Fire, he will stop at nothing to bring the evil Howls that destroyed Scotland to their knees. But Fire is a treacherous element, and the very magic that brought him to power could burn his world to ash. Especially with the blood of his fellow Hunters on his hands. Driven by a bloodlust he can’t control and dark whispers that may not be entirely in his head, he and his magic-eschewing friend Kianna will do whatever it takes to liberate their broken world. Even at the risk of confronting the Church. Even at the risk of losing his humanity. But power isn’t the only thing on Aidan’s mind. He’s falling for the intoxicating Tomas, an Incubus who offers everything Aidan desires. For a price. And if that price burns the world down, well… Aidan is used to playing with Fire.

The end is here. Tenn thought the spirits wanted him to find his fellow Hunter, Aidan, to win the war against the undead. But with Aidan on the brink of self-destruction and Tenn reeling from his lover’s spite, their fated convergence seems far from promising. Especially because Aidan no longer appears to be fighting for the living. With the Dark Lady whispering commands and Tom‡s guiding his hand, Aidan slips deeper into darkness. And while the world rallies for its final battle against the Dark Lady’s minions, Tenn finds himself torn between saving the boy who’s slipping away and fulfilling a prophecy he can’t understand—one that will require him to harness the most powerful magic the world has ever seen: the Sphere of Maya. And depending on who unleashes its power, that magic could either save humanity…or erase it.