Stacey, a member of the Baby-sitters Club, learns to cope with her diabetes and her overprotective parents.

"Claudia's sister, Janine, is too busy being smart to be nice to anyone--even their grandmother, Mimi. But Claudia doesn't have to see Janine too much this summer, since the Baby-sitter's Club is starting a new play group. It's going to be so much fun! But then Mimi has a stroke, and the whole summer changes. Now Claudia is 'Mimi-sitting, ' and Janine is no help at all. How can the Kishi sisters get along when Janine is always so mean?" --

Kristy's mom is getting married, and Kristy's a bridesmaid. The only trouble is, fourteen little kids are coming to the wedding, and they all need baby-sitters. Stacey, Claudia, Mary Anne, Dawn, and Kristy think they can handle fourteen kids. But that's before they spend five days changing diapers, stopping fights, solving mix-ups, righting wrongs... and getting sick and tired of baby-sitting. One thing's for sure: this is a hectic way to have a wedding....

"Mary Anne has never been a leader of the BSC. So when a fight breaks out among the club's four members, Mary Anne feels a little lost, unable to depend on Kristy, Stacey, or Claudia anymore. Sitting by herself in the cafeteria is bad enough; when Mary Anne has to baby-sit a sick child without any help from the club, she knows someone has to take action. It's time for Mary Anne to step in and save the day!" -- Page [4] cover.

Claudia's not worried when she hears her newest baby-sitting charge, Betsy Sobak, is a great practical joker. Claudia breaks her leg as a result of one of Betsy's mean jokes. Watch out, Betsy Sobak! The joke war is on!

"Oh, no! Stacey McGill is moving back to New York! That means no more Stoneybrook Middle School, no more Charlotte Johanssen, and worst of all...no more Baby-sitters Club! Stacey's friends are crushed when they hear that Stacey's moving, Claudia most of all. Stacey was her first best friend. How will the Baby-sitters cope without Stacey? What kind of going-away present is good enough for someone as special as she is? But most important... Who is going...

Feeling isolated as the only African American in her sixth grade class, Jessi gains a sense of belonging by participating in the Baby-sitters Club, learning sign language in order to communicate with a deaf child, and dancing in a ballet.

Dawn's a little jealous when there's a formal ceremony to welcome Jessi and Mallory into the Baby-sitters Club. Don't people know that Dawn's a special baby-sitter too? Then it's Dawn's turn to shine. Mrs. Pike wants Dawn to help prepare Margo and Claire for the Little Miss Stoneybrook contest. So what if Margo's only talent is peeling a banana with her feet? Dawn's going to help her charges win that contest any way she can. The only trouble is...Kristy,...

A discarded chain letter augers a series of bad events for Mary Anne, who is plagued by bad luck and a threatening note demanding a midnight meeting on Old Man Sutcliff's grave.