From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Stay away, spots! Halloween is coming! There will be a party at school. and Karen, Hannie, and Nancy have planned the best costume ever. Then Karen’s little sister gets the chicken pox. It is very contagious. Karen does not want to catch chicken pox. If she does, it will ruin Halloween. And that would be really scary!

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Good-bye, Stoneybrook!Karen is moving to Chicago for six months, with Mommy, Andrew, and Seth. Karen wants to be with her little-house family. But leaving her big-house family will be hard. And Karen will miss her friends and her school a lot too. She will try her best to like Chicago. But what if she misses Stoneybrook too much?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Karen + Ricky = LoveAt first, Karen and Ricky were enemies. But now they like each other. They are even going to get married. Only now Karen and Ricky are in a big fight! First Karen puts gum in Ricky’s desk. Then Ricky calls Karen Four-eyes. Will Karen and Ricky make up... or break up?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Karen’s family needs a special helper.Mommy is starting a new job. She is looking for someone to take care of Karen and Andrew when she is not home. Karen and Andrew will help her. But finding a nanny is hard work. Lots of people come to try out. The first nanny is too nice. The second one is too strict. Will the third one be just right?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Swimmers, take your marks!Karen has joined the swim team! She loves dreaming about winning medals and learning to swim fast. But mostly she likes to have fun with her swim team friends. Then the coach starts acting mean. He says the team is not working hard enough. Can Karen find a way to be a winner and have fun too?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Double TroubleTammy and Terri are real-life twins in Karen’s class. Audrey thinks that is really neat. She wants to be a twin, too. And her twin is going to be Karen. Karen likes being audrey’s twin at first. But then Audrey does everything just like Karen. She dresses like her, she talks like her, and she even looks like Karen! How can there be two Karens at once?