Gaze upon the larval form of the battery mimic and despair. Wracked with hunger from the moment of birth, every moment of these poor creatures' lives is spent in pursuit of sustenance. Technically, they can be considered to be in a constant state of starvation until maturity, and are prone to attack any perceived obstruction to their feeding. On rare occasions, a tiny battery possessing a modicum of intellect is born. Theories that these gifted grubs become queens have gained some following of late.
When things want craftin', a rock what's got magick in it, even a sniff, is the order o' the day. Now you don't need to know what to do with it, but you do need to know this: Adventurers need society like society needs adventurers. 'What's that got to do with the price o' potions, Leryll?' I hear you ask. Well, them very same stones what you adventurers earn an honest gil floggin' at market just happen to make the world go 'round, too. Simple as that... How'd you know my name, anyway?