The girls of The Detective Service have been hired by their nemesis Sharine Peters. While hosting a slumber party, a package is delivered to her home, and she must share its content with the person who signed it.
The problem is that all the girls at the slumber party claim they signed for it. It is up to the girls of The Detective Service to question them individually to determine who is telling the truth and who gets to share the contents of the package with Sharine.
With plenty of questions to answer, readers are challenged to think outside the box and practice their sleuthing skills.