Undercover in a foreign land, a princess discovers the secrets behind a generations-old enmity. The youngest princess of Atìrse, Ceana always planned to marry for the good of her people and let love come later. With her sisters' marriages ensuring peace with the nearby human kingdoms, Ceana sets her sights on their last unallied neighbor: the magical and reclusive selkies. The two peoples have experienced a wary peace for generations, and the time seems ripe for a deeper alliance that will benefit both kingdoms. The last thing Ceana expects is for Fionntan, king of the selkies, to take the proposal as a grave insult. With relations between the two peoples suddenly precarious, Ceana is determined to set things right. Aided by her grandmother, she disguises herself as a selkie and travels to their hidden home of Emain Ablach, where she hopes to discover the reason behind King Fionntan's reaction. But the more she learns about the selkies, the more she uncovers long-kept secrets of her people - and her heritage - that shake the foundations of how she viewed the world. Her growing friendships with and affection for some of the selkie nobility, including King Fionntan himself, further complicate matters, especially as her admiration for the selkie king begins to blossom into something more. No relationship built on a lie can survive, but revealing her true identity as an Atìrsen princess will doom her efforts towards peace. In order to bridge the divide between selkies and humans, Ceana will have to overcome generations of selkies' suspicion and reveal the insidious evil that's taken root in her homeland. But the greatest obstacle to her success may be her own heart. Discover a magical new world in this Little Mermaid retelling from the author of Through a Shattered Glass and the Bastian Dennel, PI mysteries.