Kristy's family moves to a new neighborhood where the kids make fun of Louie, Kristy's pet collie, who's going blind. The Baby-sitters are not going to let them get away with it.

"Claudia's sister, Janine, is too busy being smart to be nice to anyone--even their grandmother, Mimi. But Claudia doesn't have to see Janine too much this summer, since the Baby-sitter's Club is starting a new play group. It's going to be so much fun! But then Mimi has a stroke, and the whole summer changes. Now Claudia is 'Mimi-sitting, ' and Janine is no help at all. How can the Kishi sisters get along when Janine is always so mean?" --

"Claudia has a sad goodbye 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? To keep from thinking about Mimi, Claudia spends all her free time painting and baby-sitting. She's even teaching an art class for some of the kids in the neighborhood. Claudia knows...

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 Sutcliff's grave.

"After an argument, Mary Anne must find new people to sit with in the cafeteria. If that's not enough, she must also deal with an overprotective father and she cannot ask her friends for help with the children she watches. Will she be able to overcome her problems and keep the Baby-Sitters Club together?" -- Provided by publisher.