It's time for an emergency meeting of the Baby-sitters Club when Mary Anne's little kitten, Tigger disappears.

The members of the Baby-sitters Club come to the rescue to help Mary Anne search for her beloved kitten, Tigger, who has suddenly vanished.

Mary Anne is desperate to find her missing kitten, Tigger, so the Baby-Sitters help her with her search, but in the meantime the children for whom Mary Anne babysits develop inexplicable allergies.

Claudia has a sad good-bye to make. Her grandmother, Mimi, has just died. Claudia understands that Mimi was sick for a long time, but she's still mad at her grandmother for leaving her. Who will help Claudia with her homework...and share 'special tea' with her?

There’s trouble for everyone when a TV star comes to town in this entry from the classic, hit series. Stoneybrook has gone star-crazy! Derek Masters, an eight-year-old regular on a hit TV sitcom, has moved to town. Everyone’s wondering what a real-live TV star will be like—will he drive to school in a limo? Jessi can’t believe it, but even stars need baby-sitters, and she’s the lucky club member to watch Derek Masters. Even though a lot of kids at school call Derek a spoiled brat, Jessi likes him immediately. He rides bikes and eats junk food like a normal kid, but he has exciting stories about Hollywood, too! Pretty soon baby-sitting and ballet are starting to look kind of boring next to TV scripts and cameras. Maybe Jessi would like to be a star, too! The best friends you’ll ever have—with classic BSC covers and a letter from Ann M. Martin!

At long last, Dawn's mother and Mary Anne's father have decided to get married!

Stacey's parents are getting a divorce. Stacey is sad and angry, and she has a big decision to make--stay in New York with her father, or move back to Stoneybrook with her mother.