Stacey struggles with her parents because they refuse to believe that she has diabetes; to complicate matters, the Club is threatened when another group of kids set up a babysitting service similar to theirs.

When her parents decide to get a divorce, Stacey must choose between staying in New York with her father or moving back to Stoneybrook with her mother.

Having a new baby in the family is hard for Karen to get used to, but when the baby gets sick, Karen finds out that being a big sister is fun.

"Karen Brewer's imagination gets the best of her when she decides that her neighbor, Mrs. Porter--who has wild gray hair, wears black robes, and has a garden full of mysterious herbs--must be a witch"--OCLC.

Mary Anne should never have thrown away that chain letter she got in the mail. Ever since she did, bad things have been happening to everyone in the Baby-sitters Club. With Halloween coming up, Mary Anne's even more worried -- what kind of spooky thing will happen next? Then Mary Anne finds a new note in her mailbox: Wear this bad-luck charm, it says. OR ELSE. Mary Anne has to follow the note's instructions. But who sent the charm? And why did they...