From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Super Detectives! Karen loves solving mysteries. She even starts her own detective agency with her best friends, Nancy and Hannie. As head detective, Karen knows how to use a special Decod-R ring and how to dust for fingerprints. Being a detective is gigundo fun. But now Karen's pet rat, Emily Junior, is missing! Can Karen solve her toughest case yet?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! It's a bird, it's a plane, it's Karen! Karen is going on a trip to her Granny's farm. There are all kinds of fun things to do there, like playing with the animals and riding on the tractor. Granny lives so far away, Karen has to take a plane to get there. But Karen has never flown alone before. She hopes it's not too scary!

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Will Karen's wish come true?Karen can't wait for Christmas! She and Andrew are writing to Santa, baking cookies, and decorating their tree. Karen is even learning about other holidays like Hanukkah. She is all ready for the big day. But then Karen's grandmother Nannie gets sick. And now Karen doesn't want Christmas to come at all unless she gets her one wish!

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Fun in the sunKaren and the family visit a tropical island. There are lots of fun things to do there. Karen explores caves, hunts for seashells, and snorkels in the sea. She even meets a new friend. But Sandy is sad and quiet. Can Karen help Sandy share in her island adventures?

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! Is she Mrs. Porter . . . or a witch? Karen lives next door to an old lady named Mrs. Porter. Mrs. Porter wears long black robes and has wild gray hair. Her black cat is named Midnight. No wonder Karen thinks Mrs. Porter is a witch!Mrs. Porter is having a meeting at her house. Karen is sure the meeting is for witches. Are the witches going to cast a spell on Karen? Or will she be brave enough to send them away -- once and for all?

From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Karen the spyFor 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?