Siren

Something deadly waits beneath the waves off Winter Harbour, and this summer, no one's safe.
Seventeen-year-old Vanessa Sands is afraid of the dark. And heights. And the ocean. And pretty much everything else. Fortunately, Vanessa's fearless older sister, Justine, has always been there to comfort her. That is until Justine jumps off a cliff near their family's holiday home in Winter Harbour, her lifeless body washing ashore the next day.
Everyone assumes that the tragedy is an accidental result of Justine's adventurous ways. Everyone, that is, except Vanessa. Vanessa returns to Winter Harbour alone, looking for answers from Caleb Carmichael, Justine's summer love who was with her when she jumped. But when Vanessa learns that Caleb has been missing since Justine's death, she joins forces with Caleb's older brother, Simon, to try to find him.
Soon, it's not just Vanessa who is afraid. Panic sweeps through Winter Harbour as more bodies wash ashore, all male, each victim found grinning from ear to ear. And as the death toll mounts, Vanessa realises that to save Caleb and solve the mystery of her sister's death, she has to confront a secret she's kept for years - one that could end her summer romance with Simon and even life as she knows it.
An utterly gripping paranormal romance for Twilight fans sick of copy-cat vampire novels but in love with paranormal romance.