Cora has been living in her new world and learning to use the abilities she's discovered over the past year, but her nightmares have been plaguing her with increasing frequency. And what is worse they may not be nightmares at all. While she wishes the dreams would just go away and is struggling to suppress that side of herself, she discovers that some secrets should not be left alone. Surrounded by mer, selkies, and sirens who all want her, either on their side or dead, she struggles to know who her real friends are. Prince Oran dotes on her and is never out of reach, but how much of that is just the spell he inadvertently put himself under? Fynn has admitted that he’s keeping secrets from her, dangerous ones. With old enemies and new ones conspiring to upend her entire world, she must learn how to use her abilities and new ones she never imagined possible to fight for the people she loves or risk losing everything.