Claudia and the Bad Joke: A Graphic Novel (the Baby-Sitters Club #15)

A practical joker named Betsy Sobak turns Claudia's babysitting experience into a nightmare when her antics lead to Claudia breaking her leg. Frustrated and contemplating quitting the babysitting club, Claudia's friends, led by Kristy, decide it's time to teach Betsy a lesson. The story unfolds as the Babysitters engage in a playful battle of pranks, turning the tables on Betsy in a humorous and adventurous "joke war."