The Importance of a Good Match

I wasn’t sure the blue crystal key would match the angular silver lock embedded in the stone wall. These keys and their companion secure ports are based on the specific lattice design of the crystal. Seat the wrong key in an unmatched port, and you’re liable to experience unpleasant side effects. Maybe just an annoying buzz in your temple, but perhaps as severe as a neural pulse into your frontal lobe. Lost a few friends to those instant lobotomies over the years.
This one works, though.
But was it worth the price?