Caris Harper lives a charmed life. Literally. When her dad offers to take her to the Emerald Coast of Florida for summer vacation, Caris jumps at the chance. But from the first moment the wind caresses her face and the sun touches her skin, the charm begins to fade, revealing a girl Caris never knew existed. The long-buried Song that awakens is only the beginning of a transformation that will challenge her ideas about loyalty and family.
Noah Jacobs is a water breather—a species of human fully adaptable to life in the water. After the death of his older brother, Noah exiles himself to the Deep. But instinct can't be ignored. Not when he hears her Song. Caris is not what he expects and Noah is determined to get her out of his head. Instead he finds himself acting as her mentor and the more time they spend together, the more Noah realizes he just wants Caris.
When a startling truth threatens their newly formed trust, Noah straddles the line between love and obsession while Caris struggles to find a balance between the girl she thought she was and the young woman she wants to be.