A sweeping stand-alone fantasy romance from Kiera Cass, author of the Selection series. Kahlen is a Siren--bound to serve the Ocean by luring humans to their watery graves with her voice, which is deadly to any human who hears it. Akinli is human--a kind, handsome boy who's everything Kahlen ever dreamed of. Falling in love puts them both in danger... but will Kahlen risk everything to follow her heart? This star-crossed YA romance is sure to captivate readers who grew up loving The Little Mermaid or fans of Jennifer Donnelly's Waterfire Saga.