Another graphic novel in this fun series spin-off of The Baby-sitters Club, featuring Kristy's little stepsister! Karen is having her first sleepover! She and her friends are going to tell spooky stories, bake cookies, and raid the refrigerator.
But then Karen and Nancy get into a big fight, and Karen doesn't want Nancy to come to her party. A new girl, Pamela, comes instead and she isn't any fun. What is Karen going to do?