Twelve-year-old Fiona Coppleton is living a middle schooler s worst nightmare: her diary was made public and her best friend is partly to blame. Fiona and Cassie are supposed to be best friends forever. No one else listens or makes Fiona laugh like Cassie, and that meant everything when Fiona s parents were divorcing. They love each other in spite of their (many) differences, and even though Cassie cares a little too much about being popular, Fiona can t imagine life without her. Until Fiona s diary is stolen by the most popular girls at school, and her most secret thoughts areread out loud on the bus.