After weeks of recuperating from helping one of the lost heirs to the Dark Throne, the time has come for elven assassin Arayna Gamon to follow through on her promise to the Dark King Kyrell Eilish—to find the remaining lost heirs. Two more sisters to hunt down, to drag to the Underworld. But when the darkness of her past overlaps with her burgeoning new reality, Arayna loses her grasp on the power she had only just begun to revel in, threatening everything she has worked for—and her mission for the Underworld crown.