There is truth to every legend. Adapting to her new role as princess of the Seelie court, Charlotte makes an official visit to the Un-Seelie court, home to the underworld rift. The Un-Seelie ruler, King Markus, is everything her new Fae family is not: reserved, dark, and secretive. Once magicless, Charlotte is now brimming with power and in desperate need of training. The commanding Un-Seelie king manipulates her into wielding her magic, forcing her to fight past her doubts, and her gift with shadows and flame. But when Charlotte’s greatest fears come true, she must draw on all her new knowledge to fight for her world, and to piece together all that was lost.