Jenny, a pug-nosed, freckle-faced everychild, gives the babysitter Mrs. Cramie a rough time and finally helps herself to a bad case of poison oak in a futile campaign to force her mother to stay home from work. When Jenny changes her mind about Mrs. Cramie -- intrigued by the older woman's admission that her father was a circus performer -- the resolution comes as a mildly rewarding surprise, but the ease with which Jenny's rebellion runs its course and the reiterated condition that mother is divorced and must work will limit Jenny's usefulness in the bibliotherapeutic situations she's clearly been designed for.