The Baby-Sitters Club Mysteries Series by Ann M. Martin, Vicki Berger Erwin, Hodges Soileau, Nola Thacker

Stacey is shocked when a new family accuses her of stealing a valuable ring from them when she was baby-sitting. Stacey would never take anything from anyone!Even worse for the Baby-sitters, the Gardellas are threatening to tell their other clients about the missing ring.Will everyone in Stoneybrook think the Baby-sitters are stealers? Not if Stacey can help it. She's going to find out what happened to that ring!

The Baby-Sitters all want to be the first winner of the Sitter-of-the-Month contest, even though they promise not to compete against each other. Now Dawn is getting threatening notes and sinister phone calls from someone known only as Mr. X. Is winning the contest worth keeping the threats a secret?

While baby-sitting for the Craines, Mallory investigates the cat cries she has been hearing--even though the Craines have no cat--and discovers a mysterious white cat living in the attic. Original.

When Jake Kuhn, one of the boys on her softball team, is reported missing, Kristy, the last person to see Jake, is determined to find him herself after the efforts of police and friends produce no clues.

Mary Anne wants to learn about her mother, who died when Mary Anne was a baby, so she goes into the attic and searches through her father's box of photos and papers. There she finds a deep secret. . . .

Lately, Claudia has noticed her sister Janine acting very strangely. After some investigation, Claudia discovers that Janine has a boyfriend!

With the help of her friends in the Baby-sitters Club, Dawn is able to find out what happened to several dogs that have mysteriously disappeared.

Jessi can't wait to get to New York City to see her friend Quint dance in his first big ballet. What could be more exciting? Lots!Jessi and Quint overhear two men discussing a jewel heist! Jessi wants to go straight to the police. But Quint thinks they need more evidence. So the two begin tailing the men--all over the city. But are Jessi and Quint too busy watching the thieves to realize that the thieves are watching them?!

When their car breaks down in a snowstorm, Kristy and her softball team are forced to stay overnight in a creepy mansion. Original.

When Stacey gets caught with a counterfeit ten dollar bill, the Baby-sitters search for the crook spreading phony money around Stoneybrook. Original.

While visiting Stoneybrook's new museum, Claudia is horrified to learn that someone has stolen some priceless coins and replaced them with forgeries.

Dawn is back in California just in time to see the surfing competition, and solve a mystery concerning a missing surfer, a mangled surfboard, and a ghost that surfs at night!

The Stoneybrook Library children's room is holding a Readathon to raise money for new books. And Mary Anne, who loves to read, is helping out by finding good books for the kids to read. But things at the library get really scary when small fires break out. The police know the fires have been set... moreThe Stoneybrook Library children's room is holding a Readathon to raise money for new books. And Mary Anne, who loves to read, is helping out by finding good books for the kids to read. But things at the library get really scary when small fires break out. The police know the fires have been set. But by who? And why would someone want to burn down Stoneybrook's library-especially when there are tons of kids around for the Readathon? This is one serious mystery that Mary Anne's not going to let go unsolved! less

The Baby-sitters are all taking a class at SMS where they are assigned jobs at the Washington Mall. How cool - going to "school" at the mall!But soon Stacey learns that some pretty bad things are going on there. Besides the regular shoplifting problems, expensive things are being stolen, too. and then Stacey has a big scare when she's working at Toy Town.Is it safe to shop at Washington Mall anymore? The Baby-sitters aren't sure - but they're going to make sure this mystery is solved!

When a television movie begins filming in Stoneybrook, Kristy is hired to look after Derek Masters, child actor and friend of the club, who begins receiving threatening letters demanding he quit the project

Claudia's new passion for photography has her snapping pictures everywhere - at BSC meetings, at breakfast, and all over Stoneybrook. One afternoon she uses up a whole roll of film on the Stoneybrook Bank, just because she likes the way it looks.Then the Baby-sitters learn that the bank has been robbed. And it happened the very day that Claudia was there! Though the police suspect the heist was an inside job, they don't have a single lead... moreClaudia's new passion for photography has her snapping pictures everywhere - at BSC meetings, at breakfast, and all over Stoneybrook. One afternoon she uses up a whole roll of film on the Stoneybrook Bank, just because she likes the way it looks.Then the Baby-sitters learn that the bank has been robbed. And it happened the very day that Claudia was there! Though the police suspect the heist was an inside job, they don't have a single lead. But Claudia thinks her photos might contain a significant clue...Will the thief go free? Not if Claudia and the BSC can help it! less

Halloween is coming, and Dawn and her friends in the we love Kids Club are almost as excited as the kids they baby-sit. Then, just before the big night, a masked robber holds up a store in Dawn's neighborhood -- and Dawn witnesses the getaway!

While the Johanssens are away, Stacey's in charge of walking their dog, Carrot, and watching their house. At first, it's fun.

Kristy and the club investigate a century-old mystery involving an heiress who disappeared with her fortune--a fortune that just might belong to Kristy.

School at the zoo? Totally wild! The Baby-sitters can't wait to start on their animal observation projects for science class - because they get to work at the Bedford Zoo!

Entering the local baking contest, Claudia is disheartened when her cake turns out poorly, until she realizes that her efforts have been sabotaged, and it is up to the baby-sitters to find out who is to blame. Original.

Someone is trying to stop Stoneybrook Middle School's Mischief Night Dance, someone who suffered humiliation and horror at that dance long ago.

While helping restore an abandoned country club, Abby and the Baby-sitters Club become involved in a decades-old murder mystery involving a secret blackmailing ring that was once based there

Luke Martinez, one of the BSC's newest charges, acts like he doesn't trust his sitters. He's definitely hiding something from them, and he seems afraid to let anyone discover his secret. But Mary Anne and the BSC plan to do just that. They think Luke's secret holds the answer to a mysterious fire at his house...and information that could help stop a mean developer from taking over Stoneybrook. Can they win Luke's trust before it is too late?

Kristy and her friends suspect that Cary and his Mischief Knights are vandalizing Stoneybrook Middle School. But are they? Together, the BSC members solve a series of eight puzzles--on the way to catching the real culprit.

Dawn has a lot to do this summer: spend time with her family, see her Stoneybrook friends, and, of course, baby-sit as much as possible! Then she and the BSC land some new clients: a feuding family, searching for a treasure that will settle a tricky will left by their eccentric father.Now Dawn has even more things she'd like to do. She's going to take care of her new charges. . . and while she's at it, she'll try to patch up the feud and solve the inheritance mystery... moreDawn has a lot to do this summer: spend time with her family, see her Stoneybrook friends, and, of course, baby-sit as much as possible! Then she and the BSC land some new clients: a feuding family, searching for a treasure that will settle a tricky will left by their eccentric father.Now Dawn has even more things she'd like to do. She's going to take care of her new charges. . . and while she's at it, she'll try to patch up the feud and solve the inheritance mystery. Can she do it all before she has to go back to California? less

When the Hatts, a family that disappeared years earlier under mysterious circumstances from the old Stoneybrook lighthouse, suddenly return and move in with the Kishis, Claudia wonders what secret they are keeping.

When Abby comes home from school one day and finds a baby on her front porch, she's completely mystified. Where did he come from? And why was he left on the Stevenson's porch?

Stacey takes a job at Bellair's department store only to discover that someone is sending scary and threatening notes to all of the models.

Derek Masters, child star and friend of the BSC, is about to board a special "mystery train" publicizing his latest movie...and he wants a bunch of his Stoneybrook friends, including three baby-sitters, to join him!It sounds like a blast, but problems appear before the train even leaves the station. Someone seems determined to ruin the trip - no matter what. Good thing the BSC is on the case, because this is turning into one dangerous ride!

Cleaning up Granny and Pop-Pop's basement, Mary Anne finds a tightly wrapped package that contains a surprising secret from the past.

When Claudia is told that her friend Rebecca's grandmother burned all of her own famous artworks before she died, she is suspicious and sets out to find the real truth.

Stacey's class is selling "valentine-grams", packets of secret messages and candy that kids can send to each other. When someone steals the bag of messages, Stacey becomes a super sleuth to find the culprit and save Valentine's Day.

In this spooky page-turner, Mary Anne takes a job in a bookstore which might be haunted...by Edgar Allan Poe

Stuck at home sick, Abby passes the time at r window snooping on the neighbors with her binoculars. It pays off when she spots a criminal just profiled on the "Mystery Trackers" TV show!

It's the biggest crime in Stoneybrook history--one of the town's mansions is missing! Kristy & Co. are hot on the trail of the Cat Burglar, who left his sign at the scene of the crime.