Quote Originally Posted by Wolf Kanno View Post
Chances are it's the underground Returners group within Narshe who made use of the passageways and not the townsfolk hence why it seems only Locke and Arvis are aware of it. They did set some precautions when Edgar's group came back (after learning about when Locke and Terra escaped) and considering said mines are monster infested, I doubt the townsfolk are really quick to explore them all otherwise they would have met a ton of angry badass moogles and their Yeti pet.
Dude, Edgar straight-up says that the Narshe Guards use that cave (with the little light you have to follow) to train the Guards.

Where are those guards? Is it their day off?