This cache is the final in a series of three. The first cache is There and Back Again (
GC3NET7), which contains a puzzle that, when solved, will lead you to the location of The Road Goes Ever On and On (
GC3V5WN). Inside that cache you will find the final puzzle, which will lead to the location of this cache.
As with the previous mystery in the series, this is not necessarily a solve-on-site puzzle, so feel free to take a copy home with you! Just let me know when they are starting to run out. Good luck!
You can check your solution here.
Congrats to FTF mudder91, NoBucksRanch, and eyekwilt2!