Sheila Tubman is not quite sure who she is. Sometimes she feels like confident, brilliant sheila the Great and oohter times she's secret Sheila, who's afraid of spiders, the dark, swimming, and, most of all, dogs. When her family decides to leave the city for a summer in the country, Sheila will have to suffer everything from long-eared dogs to swimming lessons to creepy spiders. That's enough to drive any city girl nuts! If she can survive the summer at all, Sheila may be forced to admit that she's no supergirl.