Tara just wants to be treated like any other girl at Ainsley Academy. That is, judged on her merits--not on her transness. But there's no road map for being the first trans girl at an all-girls school. And when she tries to join the Sibyls, an old-fashioned Ainsley sisterhood complete with code names and special privileges, she's thrust into the center of a larger argument about what girlhood means and whether the club should exist at all. Being the figurehead of a movement isn't something Tara's interested in. She'd rather read old speeches and hang out with the Sibyls who are on her side--especially Felicity, a new friend she thinks could turn into something more. Then the club's sponsor, a famous alumna, attacks her in the media and turns the selection process into a spectacle. Tara's always found comfort in the power of other peoples' words. But when it comes time to fight for herself, will she be able to find her own voice?