Claudia's wacky Aunt Peaches is moving back to Stoneybrook and she's going to have a baby. All is well until one of Peaches's adventures gets Claudia into trouble. When she blows up at Peaches something awful happens, and she has to make amends.

Dawn and her friends try to help the police catch a robber so that trick-or-treating will not be called off.

Jessi's new teacher is shy and wears odd clothes and the students play jokes on him that Jessi thinks are funny, but when he leaves after she plays a prank on him, she feels awful about it.

Jenny Prezzioso is the fussiest kid the Baby-sitters know. Her hair is always perfect, she wears frilly dresses and is never dirty. Mary Anne wants her to join the kickball team but no way is she going to play.

Shannon looks forward to a class trip to Paris--until she finds out her mother wants to chaperone the trip. Now Shannon is furious.

Someone is stalking the members of the Baby-Sitters Club and they suspect it could be someone from their past.