Lullaby (Book Two in the Watersong Series)

The plot focuses on Gemma, who has been transformed into a siren and forced to vanish into a world of dark magic, mystery, and compulsive hunger alongside a dangerous clique of beautiful girls (Penn, Lexi, and Thea). Meanwhile, her sister Harper refuses to give up searching for her. Aided by Daniel—a guy immune to the sirens’ dark powers—Harper tracks Gemma down to a nearby beach town following news of a horrific murder, only to realize how deeply the ancient curse has altered her sister.