Is it a Mystery? Well, if it must be defined, I guess it's a Mystery but with twist. A Twystery.
Your mission, should you choose to accept it is to reach the final location of this QuiRky Cache.
It looks like you're going to need some kind of a scanner or something.
I wonder which will unravel first, the mystery or you?
Anyway, your mission begins right here. You'll definitely need a smart-phone and perhaps a smart companion with a pen and paper. It will also require some data, some fuel and some tenacity, hence the rating.
Oh, and if you or any of your team are muggled... don't expect help.
Absolutely no spoilers please.
Good Luck!