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.

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

When she learns that a famous director is making a movie in her home town, ten-year-old Annabel is determined to get a part in it.

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, including a plunge into real estate that puts her house on the market.