Karen Brewer's imagination gets the best of her when she decides that her neighbor, Mrs. Porter--who has wild gray hair, wears black robes, and has a garden full of mysterious herbs--must be a witch.

Another graphic novel in this fun series spin-off of The Baby-sitters Club, featuring Kristy's little stepsister! Karen is having a terrible day. Her favorite jeans are missing, there's no prize in the Crunch-O cereal box, and Boo-Boo the cat won't play with her. She even gets punished and sent to her room! Karen tries everything to make her day better, but nothing is going right and her bad luck just won't go away. Will this be the worst day ever?...

Karen is afraid she will make a fool of herself in front of her class and mean Ricky if she wears her new eyeglasses for her class picture.