Poor Mallory! is the 39th book in The Baby-Sitters Club series by Ann M. Martin. Mallory, whose family is suddenly short of money, takes a baby-sitting job and needs the help of the Baby-sitters Club in adjusting to her new employers’ wealth.
There’s some bad news in the Pike family: Mallory’s dad has just lost his job. And since money is going to be tight until Mr. Pike finds a new job, all eight of the Pike kids decide to help out.