In "Kingdom of Shadow and Light", MacKayla Lane, now the High Queen of the Fae, encounters her most formidable challenge as she governs the very beings she was destined to hunt. As she strives to maintain peace and protect those she loves, an ancient enemy emerges, threatening to alter the fundamental rules of her world. This shifts the balance between the Fae kingdoms and ignites a grand battle involving Mortal and Fae, Seelie and Unseelie, vying for immense power with humanity’s fate in the balance. Mac’s journey traverses hauntingly beautiful courts, unearthed ancient truths, and deep into the dark realms of the Unseelie kingdom, testing her resolve and willingness to sacrifice everything.