The Iron Court was sealed centuries ago, its monstrous fae warlords locked away by the high fae to prevent a second realm-wide war.

But now the barrier is breaking.

When Arlenna Thorne, a half-fae blacksmith's daughter, is taken by the King's guard for a mysterious "offering," she finds herself imprisoned in the ruins of the Iron Court—and bound by blood to its last living prince: Kael the Ravager, a cursed warrior with molten skin and a heart made of iron.

Arlenna is meant to be a sacrifice. But Kael sees something else in her: a power that could undo his curse... or finish what the first war started.

To survive, Arlenna must master ancient fae metalcraft, resist a deadly magical bond, and decide whether to save the monster who could destroy the realm—or become one herself.