An intruder trashes Ms. Holmes's house, leaving behind a notebook, a threat, and a cryptic calling card - five orange pips. What do the pips mean, and how is this case connected to her famous predecessor? Someone is out to get her, and when more pips turn up at the home of a young man named Oscar Watson, it becomes clear that she isn't the only target! Can you help Sharlotte Holmes and her new friend solve the mystery of the orange pips and track down the culprit before their time runs out?