It<U+2019>s Lark<U+2019>s seventeenth birthday, and although she<U+2019>s hated to be reminded of the day ever since her mom<U+2019>s death three years ago, it<U+2019>s off to a great start. Lark has written a killer song to perform with her band, the weather is stunning and she<U+2019>s got a date with gorgeous Alec. The two take a canoe out on the lake, and everything is perfect<U+2014>until Lark hears the screams. Annabelle, a little girl she used to babysit, is drowning in the nearby reeds while Annabelle<U+2019>s mom tries desperately to reach her. Lark and Alec are closer, and they both dive in. But Alec hits his head on a rock in the water and begins to flail. Alec and Annabelle are drowning. And Lark can save only one of them.