Eleven-year-old Jessi copes with pet sitting for the Mancusi family and serious dissension among the members of the Baby-sitters Club.

"Karen has to get glasses--two pairs! One pair for reading and one for all the time. Karen does not want glasses. Her school pictures are going to be taken soon! But Karen has to...so she picks out some pretty pink and blue ones. Karen thinks she looks very grown-up. Then Yicky Ricky calls her Four-eyes. If Karen wears her glasses for the school picture, Ricky will make fun of her. But Karen is not a wimp! Glasses or no glasses--that Ricky is going...

Devising a kid-free day off for all the hardworking mothers in Stoneybrook, Kristy and the rest of the Baby-sitters Club are pleased by the successful day, which concludes with a big surprise for Kristy.

One of the baby sitters discovers an old diary in an antique trunk in Stacey's attic. The diary belonged to a girl who lived in Stacey's house in the 1890s and says there may be ghosts in the house.

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.

After winning money in the lottery, the Baby-Sitters head for California, where Jessi lands a part in a television show, and Stacey becomes obsessed with surfing.

Members of the Baby-sitters Club are determined not to let Dawn get hurt by her new boyfriend Travis, who is older and always telling her what to do.

Jessi, who feels that she is old enough to take care of herself, is humiliated when strict and bossy Aunt Cecelia moves in to control her life and interfere with the Baby-sitters Club.

Kristy needs the help of the Baby-sitters Club to find out who is sending her mysterious notes, which are mushy at first but then start getting weird and creepy.