It's fun to be a Baby-sitters' Little Sister! For New Year's Eve, Karen thinks everyone should make a promise. Hannie is going to stop biting her nails. Kristy promises not to talk to her boyfriend on the phone so much. And Karen makes the most promises of all ― nine! But pretty soon, everyone starts breaking their promises. And her brothers and sisters are calling Karen a spy! Poor Karen. Why is everyone being bad except her? Ann M. Martin is the creator of The Baby-sitters Club, which has more than 190 million books in print, making it one of the most popular series in the history of publishing. Her novels include A Corner of the Universe (a Newbery Honor Book), Belle Teal , Here Today , A Dog's Life , On Christmas Eve , and the Main Street and Family Tree series, as well as the much-loved collaborations P.S. Longer Letter Later and Snail Mail No More with Paula Danziger. Ann lives in upstate New York.