Kill the king to save the world? Not on this wizard's watch... Reborn wizard Emma Hale hadn’t thought she could make a bigger mess of her life—and that of her liege and sometimes lover, the legendary King Arthur. Turns out she was wrong. With the greatest of the dark fae roaming free and the spell that preserved Arthur's soul broken, it'll only take one misstep for her to lose him forever. Keeping her balance is no easy feat. Thanks to the oath Emma took in exchange for the light fae's help, the closer the Darkest One comes, the more Emma has to fight the compulsion to end Arthur’s life before their enemy can. Then there's the matter of the darkness lurking inside her king's soul—a curse laid centuries ago that could turn Arthur into the dark fae's deadliest weapon. So yeah, this wizard has a lot on her plate. With the clock ticking down toward global disaster, the choice may come down to saving the world or saving her king. But how can Emma give up on either?