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 Babysitters 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?