"Mary Anne has never been a leader of the BSC. So when a fight breaks out among the club's four members, Mary Anne feels a little lost, unable to depend on Kristy, Stacey, or Claudia anymore. Sitting by herself in the cafeteria is bad enough; when Mary Anne has to baby-sit a sick child without any help from the club, she knows someone has to take action. It's time for Mary Anne to step in and save the day!"--Page 4 of cover.

Pugtato babysits the Brussel snouts and thinks watching them will be a breeze, but the small snouts drag him all about reminding him, "we are not babies!"

Jimmy Bishop likes crime fighters, vampires, and dogs, and he does not care for his new babysitter, so he is delighted when his new dog, Abby--who sleeps during the day, and grows huge fangs at night--turns out to be a crime-fighting, vampire dog, who also does not like the babysitter.

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...