Nancy Druid Book 1
One of the NPCs in our game is a bookish girl, so I made her some teen mystery books.
The name "Nancy Druid" was first used as a joke by one of the players—a play on Nancy Drew—and became a running gag throughout the campaign. The name "Eladryn Keene" is a pun of "Carolyn Keene", and "The Mystery of the Druids" is a play on both the Nancy Drew book titles that typically start with "The Mystery of …", and the memed PC game The Mystery of the Druids.
I modeled the books after the actual Nancy Drew book covers, with a torch replacing the flashlight in the top right.
Nancy Drew Mystery Stories #29 is The Mystery at the Ski Jump.