Ann M. Martin

When Kristy Thomas has the great idea to form a baby-sitters club - a chance to earn money and spend time with her friends, all while doing something they each love to do - she has no idea how much the club will change everything....

Mrs. Piggle-Wiggle has gone away unexpectedly and left her niece, Missy Piggle-Wiggle, in charge of the Upside-Down House and the beloved animals who live there....

Stacey starts dating a jock basketball player and falls in with a super-cool crowd, including the cheerleaders who ask her to try out for the squad....

Hattie Owen enjoys the familiarity of her small-town life, but during the summer she turns 12, her world is turned upside down with the arrival of an uncle no one has ever spoken about. Now that Hattie’s uncle’s “school”—an institution for the mentally disabled—is closing, Hattie's...

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....

Lately, the pressure's really been on Stacey. She hasn't been feeling well, her schoolwork and baby-sitting jobs are almost out of control, and she's sick of being in the middle of her parents' fights....

When Lou McNally was last in Stoneybrook, she was the Worst Kid Ever. Now she's back...and Abby is going to be her baby-sitter. She's prepared for the worst, but Lou is a perfect angel....

The Papadakis family takes in a foster child, a troubled young girl named Lou, and Kristy soon discovers that Lou's difficult behavior makes her a real challenge to baby-sit....

When Kristy sees how much her little brothers and sisters want to play on a softball team, she organizes a ragtag team of her own. They may not be champions, with Jackie Rodowsky, walking disaster, on the team, but at least they have team spirit....

Visiting her father on the west coast, Dawn is tempted to stay with him when she enjoys the beach, Disneyland, and a wealth of healthy restaurants, but the homesick baby-sitter fears leaving her mother and all of her friends....

Karen will try anything! Karen has new roller skates. She is a very good skater. She can ever do tricks. But oh, no! Karen falls down and breaks her wrist! She has to go to the hospital and get a cast. Karen wants somebody famous to sign her cast. It isn't going to be easy....

When Abby spends a week with her grandparents at their summer house, she learns wonderful things about her family for the first time, as well as one piece of unhappy news....

Stacey and Mary Anne are baby-sitting for the Pike family for two weeks at the New Jersey shore. Things are great in Sea City: There's a gorgeous house right on the beach, a boardwalk, plenty of sun and sand...and the cutest boy Stacey has ever seen....

Mallory comes down with mono and her parents make her quit the Baby-Sitters Club....

Jessi knows a secret language! She learned it from Matt Braddock, the BSC's newest charge. Matt's been deaf since birth, and he uses sign language to speak. Since Jessi is Matt's baby-sitter, she's been using sign language, too....

Taking on task after task in her willingness to please the well-paying Cheplin family, baby-sitter Stacey experiences an elated sense of achievement, until her jobs interfere with the rest of her schedule....

Dawn has always thought there was a secret passage hidden in her house. But that doesn't explain why creepy things happen when Dawn's at home, or the spooky noises coming from behind her bedroom wall....

Missy Piggle-Wiggle is finally starting to feel settled in at the upside-down house, and the families in town have come to trust her magical cures for all sorts of childhood (mis)behavior....

Trying to help her hard-working father and twin sister to adjust to life in Stoneybrook, Abby Stevenson becomes the newest member of the Baby-sitters Club and shares her first adventure....

Stacey's so excited! She's invited her friends in the Baby-Sitters Club to New York City for a long weekend. It's going to be perfect - a party and a sleepover on Friday, a big baby-sitting job on Saturday, and lot of sightseeing on Sunday. But what a mistake....