When Callie Pierce turns 18 she has three very simple goals: avoid her stepfather, escape to an Ivy League University of her dreams, and party with her friends. But on a night like any other, when the moon is full over the ocean, her life changes in a way that no one could have ever seen coming.

On the sandy beaches of San Diego she meets Orion, a man with whom she cannot stay away, to whom her return becomes as inevitable as the tide kissing the shore. If that isn’t enough, a kiss which changes everything plunges Callie head first into a world of mythic responsibility, epic danger, and heart stopping romance.

The Mer, an ancient race of warriors brought forth to defend the seas, show her the wonders beyond what is humanly possible, forcing her into an archaic chain of events that bring together power, seduction, violence, and beauty in a terrifying, yet exhilarating mix. Then there’s the Banished to contend with, a group of Psirens corrupted by the ocean’s abyss that stand to destroy the eternity Callie has been promised.