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 Hickory's grave.

Stacey's invited her friends from the Baby-sitters Club down to New York City for a long weekend. But what a mistake! The Baby-sitters are way out of place in the big city. Mary Anne sounds like a walking guide book; Dawn's afraid of everything; Kristy can't keep her mouth shut; and Claudia's jealous of Stacey's friends. Does this mean Stacey can't be the Baby-sitters' friend anymore? Will the Baby-sitters Club fall apart?

The girls in the Baby-sitters Club face new complications when Logan tries to become the club's first male member and shows an interest in Mary Anne.

Mrs. Noodlekugel four mice make a terrible mess with crumbs at, she decides to take them on the bus to visit the eye doctor and invites Nick and Maxine to come along.

Mallory wants to become a member of the Baby-sitters Club, but the girls make it extremely difficult for her to join.

When Madeleine's parents go to the Pond Party, they leave Carl and the baby at home for a cozy winter afternoon with a babysitter. But Carl and Madeleine have plans of their own--they want to play in the snow!

A little girl provides instructions for properly babysitting one's grandmother, such as taking trips to the park and singing duets.

When nine-year-old Eleanor's beloved babysitter Bibi moves away to care for her ailing father, Eleanor must spend the summer adjusting to a new babysitter while mourning the loss of her old one.

Lily's mother is sick and her father must go to work, but she does not want to stay with a babysitter, even if it means playing with cute baby Sam, sweet little dog Ringo, and fun big brother Jack.

While Little Hedgehog babysits his cousin, with help from his forest friends, Baby's favorite blanket brings them some misadventures but later saves the day.