Ever since Mary Anne threw away the chain letter she got in the mail bad things have been happening. With Halloween coming up, Mary Anne's even more worried about what spooky thing will happen next? When she receives a note with a bad luck charm in it saying wear or ELSE, she has to wear it, but who sent it? The BSC might never see an end to their bad luck if they don't solve this mystery soon! In graphic novel format.

The hit series is back, to charm and inspire another generation of baby-sitters! Mary Anne's mother died when Mary Anne was just a baby. And since it makes Mr. Spier too sad to talk about her, Mary Anne hardly knows a thing about her mother. She respects her father's feelings, but lately, she wants to know more.So Mary Anne does something she knows is wrong. She goes up into the creepy, ghostly attic in her and Dawn's house to look for evidence. And there Mary Anne finds something she wishes she'd never looked for . . . .The best friends you'll ever have are detectives, too!

The members of the Baby-sitters Club split their time between babysitting and investigating the spooky noises behind Dawn's bedroom wall.

Whiled cleaning up Granny and Pop-Pop's basement, Mary Anne stumbles upon a tightly wrapped package that contains a surprising secret from the past.

A brand-new Baby-sitters Club graphic novel adapted by newcomer Cynthia Yuan Cheng! Mary Anne should never have thrown away that chain letter she got in the mail. Ever since she did, bad things have been happening to everyone in The Baby-sitters Club. With Halloween coming up, Mary Anne's even more worried -- what kind of spooky thing will happen next? Then Mary Anne finds a new note in her mailbox: Wear this bad-luck charm, it says. OR ELSE. Mary Anne has to follow the note's instructions. But who sent the charm? And why did they send it to Mary Anne? The BSC might never see an end to their bad luck if they don’t solve this mystery soon!

The hit series is back, to charm and inspire another generation of baby-sitters! When Dawn starts getting threatening notes and odd phone calls while she's baby-sitting, she doesn't know what to do. The notes are signed "Mr. X," and they're beginning to get scary. Normally, she'd tell the rest of the BSC, but this time things are different.The kids at Stoneybrook Elementary are having a Sitter of the Month Contest. The Sitter of the Month has to be someone who is in control--someone whose jobs always go smoothly. Dawn doesn't want to blow her chances at winning. But what if she's in real danger?The best friends you'll ever have are detectives, too!