Kristen is a skilled hurdler whose life seems perfect - until she decides to have sex with her steady boyfriend and, through a series of events, discovers that she is intersex. From there, the entire school finds out, leaving Kristen to struggle and come to terms with her new self. 
 This is a sensitively-told story about an intersex patient, especially important because many people (myself included, before reading this) don't know what intersex is or much about it. Folks outside the gender binary are often left out of literature; I.W. Gregorio rectifies that by not only writing about an intersex character, but also portraying her as a realistic human being, not a caricature or a joke. Kristen's emotions are muted, as who've experienced depression may attest to, and her hopelessness is palpable and real. 
 I've read some criticism about some of the other characters in this book; I can see where some of them are coming from. (view spoiler)[Darren's feelings for Kristen were too convenient and felt a little contrived. I saw the romance coming from a mile away, and never doubted for a second that they'd be together by the end. The ending was too happy for me. That said, I can see why a story about a girl learning to accept herself sort of needs to have a happy ending - perhaps everyone needs a reminder that things can work out, no matter how dark they seem (and Kristen's circumstance certainly looked very dark). (hide spoiler)] I would have loved a little more information on side characters like Vee and Faith and even Sam. 
 Overall, though, this book bears a great message of courage, introspection, and coming to terms with who you are. For that alone, everyone should read it.