Eleven-year-old Kate Faber wishes she could talk to her best friend Marilyn about this. But Marilyn is no longer her best friend. Or is she? Kate and Marilyn had always been the kind of best friends who lived on the same block for their entire lives and who could agree on the kind of boys worth kissing or who should be invited to their sleepover. The kind of best friends who didn't need words to talk, but always just knew.
But lately Marilyn has started to think that Kate can be a bit babyish. And Kate thinks that Marilyn is acting like a big snob. And a lot of the time, well, it feels as though they don't know each other anymore. Somehow nothing is the same, but secretly, Kate and Marilyn both wish it could be.