Jessi doesn't need a baby-sitter--she is one! Jessi can't believe it. Her dreaded Aunt Cecelia is moving in to take care of Jessi and her brother and sister. How humiliating--Jessi's going to have a baby-sitter!
Plus, Aunt Cecelia is a drill sergeant. She tells Jessi when to go to bed, how to wear her hair, and she even forbids her to go to a Baby-sitters Club meeting.
Jessi knows she's old enough to take care of herself--but how can she tell Aunt Cecelia that?