Mary Anne's Bad Luck Mystery: A Graphic Novel (the Baby-Sitters Club #13)

The story revolves around Mary Anne, who regrets discarding a chain letter after a series of unfortunate events befall the Baby-sitters Club. As Halloween approaches, her anxiety grows when she receives a new note instructing her to wear a bad-luck charm. Faced with the mystery of the charm's sender and the ominous implications, Mary Anne and the club must unravel the enigma to break the cycle of bad luck threatening their friendship and activities.