Jessi can't believe it. Her dreaded Aunt Cecilia 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 and how to wear her hair—and she even forbids Jessi 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?