Karen's New Year (Baby-Sitters Little Sister, 13)

"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 about softball on the phone so much. And Karen makes the most promises of all -- nine! But pretty soon, everyone starts breaking their promises. And Karen's brothers and sisters are calling her a spy! Poor Karen. Why is everyone bad at making New Year's promises except her?"--