Biz knows how to float. She has her people, her posse, her mom and the twins. She has Grace. And she has her dad, who tells her about the little kid she was, and who shouldn't be here but is. So Biz doesn't tell anyone anything. Not about her dark, runaway thoughts, not about kissing Grace or noticing Jasper, the new boy. And she doesn't tell anyone about her dad. Because her dad died when she was seven. And Biz knows how to float, right there on the surface--normal okay regular fine. But after what happens on the beach--first in the ocean, and then in the sand--the tethers that hold Biz steady come undone. Dad disappears and, with him, all comfort. It might be easier, better, sweeter to float all the way away? Or maybe stay a little longer, find her father, bring him back to her. Or maybe--maybe maybe maybe--there's a third way Biz just can't see yet.