From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Welcome, Adelaide Sidney! There is a new student in Karen’s class. Her name is Addie. She is funny and very talkative. And she has cerebral palsy. Karen feels sorry for Addie. She thinks Addie has no friends just because she sits in a wheelchair. So Karen decides to make Addie be her best friend. But Karen won’t leave Addie alone. And now Karen might not be Addie’s friend at all!

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! "Stoneybrook Academy is closed today."Karen likes school, but she can’t wait for a snow day! Karen’s got big plans for the Three Musketeers: sledding, and ice skating, and maybe even a snowball fight. But when Karen’s snow day finally comes, she gets herself in a big mess. She and Hannie and Nancy have to help Karen’s brother shovel snow. All day long! What’s going to happen to Karen’s special snow day?

Feeling sorry for the new girl in her class, Karen decides to become best friends with Addie, a victim of cerebral palsy, but Karen soon discovers that friendship does not mean doing everything for Addie.

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Pumpkins for saleKaren’s daddy has given Karen a special job for Halloween. She is in charge of the pumpkin patch. And there are so many pumpkins! Karen chooses a gigundo one for herself, and then she has a pumpkin sale. Karen finds good homes for all her pumpkin babies. But then, a pumpkin smasher comes through the neighborhood! Karen and all her friends are so worried. Will their pumpkins be safe until Halloween?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! WAAA!Karen's friend, Nancy, is going to be a big sister. Her mommy is having a baby. At first, Karen is so jealous. Then Nancy promises to share the baby with her. Now Karen is super excited. Nancy might even bring the baby to school for Show and Share! Karen and Nancy can't wait for the baby to be born. But how much longer will it be?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Write on!Everybody in the big house is busy. And Karen is b-o-r-e-d. She tries to read a book. But then she has a better idea! She will write her own book! It will be about her life. She does not remember everything about being little. So she talks with Mommy and Daddy. They tell Karen all the funny things she did. Can Karen write a whole book?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! The spiesKaren and Addie are elected to the safety patrol. Karen is so proud to wear her badge and keep the halls safe. But uh-oh. Things are being stolen all over the school. Can Karen and Addie catch the thieves?