The unearthly sound echoed across the faire over the din of the crowd. An apprentice trying to make some extra coin had found a way to utilize his training tool. While this would scandalize his master and his peers, the common folk were mesmerized by the unique sound this instrument performed.
This is a quartet of low-magic rings that can be used separately or as a set.
There are no scrolls in this world, but there are crystals of various sizes, colors and qualities. Every spell has a requirement on the amount and characteristics of crystals that must be held in order for the spell to be cast, crystals which would shatter should the cast be successful. Now picture a land where crystals are scarce except for high concentrations of them in specific spots throughout the land. A number of scenarios could occur, such as benign companies selling the mined valuable for cheap, a region in constant magic-intense war zone, an area of crystals in the quicksand, or an undiscovered patch next to a town...