X marks the spot instantly brings back memories of favorite childhood books, treasure maps and just knowing there’s a pot of gold at the end of the rainbow.
There’s something very exciting about the idea that someplace there lies a hidden treasure.
The illustrated Xs created from slices of lemons and limes add a quirky, exotic flavor to the thought.
In the cozy mystery, you can use innumerable locations and so have innumerable Xs to stand for places where events have occurred, or places where clues are hidden, or simply places where characters interact and interpret or misinterpret what is happening.
Many of the most famous cozy mysteries have a place in the book title and the place provides not only the background but a deeper clue to the mystery.