"Eleven-year-old (nearly twelve) Celi Rivera, who is a mix of Black-Puerto Rican-Indigenous Mexican is secretive about her approaching period, and the changes that are happening to her body; she is horrified that her mother wants to hold a traditional public moon ceremony to celebrate the occasion; she must choose loyalty to her life-long best friend who is contemplating an even more profound change of life or the boy she likes"-- Provided by publisher.