Lies Beneath is a somewhat dark romantic fantasy that would appeal to fans of the Twilight series. Similarly, a teen girl is drawn to a monster and the two fall in love against all odds. This story, told from a merman's perspective, is an imaginative and compelling one, with an increasingly fast pace and even a surprise twist at the end. Connor is a killer who lives off the positive emotions of his prey. But after meeting Lily, a smart and strong female character, he has hope that he may not have to rely on others to supply his happiness. With just a bit of kissing and infrequent language (d-mnit, sh-t, a-shole), this book is also a good choice for tween girls who like to read ahead of their age.