The Siren / Kiera Cass.

Years ago, Kahlen was rescued from drowning by the Ocean. To repay her debt, she has served as a Siren ever since, using her voice to lure countless strangers to their deaths. Though a single word from Kahlen can kill, she can't resist spending her days on land, watching ordinary people and longing for the day when she will be able to speak and laugh and live freely among them again. Kahlen is resigned to finishing her sentence in solitude ... until she meets Akinli. Handsome, caring, and kind, Akinli is everything Kahlen ever dreamed of. And although she can't talk to him, they soon forge a connection neither of them can deny ... and Kahlen doesn't want to. Falling in love with a human breaks all the Ocean's rules, and if the Ocean discovers Kahlen's feelings, she'll be forced to leave Akinli for good. But for the first time in a lifetime of following the rules, Kahlen is determined to follow her heart.