Louise Fitzhugh

Eleven-year-old Harriet keeps notes on her classmates and neighbors in a secret notebook, but when some of the students read the notebook, they seek revenge.

Aspiring writer Harriet 'The Spy' Welsch is determined to become class blogger. Competing against her supreme nemesis, Marion Hawthorne, Harriet will do whatever it takes to win the coveted title. But when it begins to look like Marion might take the lead, Harriet becomes desperate to figure out a way to get the most blog hits.