Erin doesn't know exactly when it happened, but it happened. Boys stopped being friends and started being boyfriends. Girls began wearing make-up to school. And her big sister started keeping secrets about her love-life. It seems like everyone is changing around Erin, and yet she's still the same. She's fine doing her own thing, but she never thought she'd be deliberately left out. How can Erin grow up and just be herself? -- Back cover.