She eats lunch with the other girls from the track team, but they're not really her friends. Mostly she spends her time watching Ethan Gray from a distance, wishing he would finally notice her, and avoiding the popular girls who call her "Choker" after a humiliating incident in the cafeteria. Then one day Cara comes home to find Zoe waiting for her. Zoe's on the run from problems at home, and Cara agrees to help her hide. With her best friend back, Cara's life changes overnight. Zoe gives her a new look and new confidence, and next thing she knows, she's getting invited to parties and flirting with Ethan. Best of all, she has her BFF there to confide in. But just as quickly as Cara's life came together, it starts to unravel. A girl goes missing in her town, and everyone is a suspect—including Ethan. Worse still, Zoe starts behaving strangely, and Cara begins to wonder what exactly her friend does all day when she's at school. You're supposed to trust your best friend no matter what, but what if she turns into a total stranger?

    Now her reputation for sniffing out cheaters has spread all over school, and Marisa finds herself the reluctant queen of busting two-timing boys.But when ex-frenemy Kendall asks her to spy on her boyfriend, TJ, Marisa quickly discovers the girl TJ might be falling for is Marisa herself. And worse yet? The feelings are quickly becoming mutual. Now, she’s stuck spying on a “mystery girl” and the spoken-for guy who just might be the love of her life…

    She’s trying to explain why. Why she pushed him away. Why her father got so angry when he saw them together. Why she disappears some nights. Why she won’t let herself remember what happened that long-ago night on the boardwalk. Why she fell apart so completely.Desperate for his forgiveness, she’s telling the whole story of the summer she nearly lost herself. She’s hoping he’ll understand as well as she now does how love—love for your family, love for that person who makes your heart beat faster, and love for yourself—can save you after all.