From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Karen's family needs a special helper. Mommy is starting a new job. She is looking for someone to take care of Karen and Andrew when she is not home. Karen and Andrew will help her. But finding a nanny is hard work. Lots of people come to try out. The first nanny is too nice. The second one is too strict. Will the third one be just right?