Biz has learned how to "float" along the surface of her life, pretending everything is normal and fine--she has her mom and the twins, her posse of friends, and Grace, but she also has her dad, who was supposed to have died when Biz was only seven. Biz hasn't told anyone anything important to her--not about kissing Grace or suddenly having feelings for new boy Jasper, too. Then, after what happens on the beach, and after her dad disappears, again, Biz begins to think floating is not enough. She may try sinking. Or maybe she could try to find her father and get some answers.