Convinced that her family is poor because her parents refuse to get her a horse or a swimming pool, nine-year-old Jenny Archer follows her own path to making money, and plunges her house into the real estate market.

After reading three mysteries in a row, Jenny becomes convinced that the neighbors across the street are up to no good and decides to investigate.

This book is about Jenny Archer and her struggle to write her autobiography. Fortunately, her imagination comes to the rescue, helping her to invent a fascinating family history.

Follows the comic mishaps of Jenny Archer as she goes into business preparing lunches for friends at school.