The adventurer rode into the golden-hued glade, looking around. If the tribesman he had 'persuaded' to help him hadn't been lying, it should be here. Ah, there it is, he thought. A small pool, with no inlet or outlet. Dismounting, he looked into the crystal-clear water. He could see goldfish swimming around, and beneath them the bottom was covered with golden statues of men and women, mostly nude but some with a kilt or loincloth.
“I'm rich,” he exulted. “That damn tribesman didn't die in vain!” He stripped off his clothes and armor, noting in passing that the ground was mounded, here and there, with weapons, armor, and other items, mostly rusted or rotted by time, and dove into the pool to begin gathering up his wealth.
Silence fell over the glade as the new statue settled onto the others littering the bottom.
"Hey, Hultz. What are you doing in here?"
"It's gonna move. I don't like it when it moves," the stableboy replied, sitting by the hearth with his arms wrapped around himself.
"What's going to move?"
"The Inn. I don't like it when it moves."
Five minutes later, he gets up and goes back outside.
"What was he talking about?" the newcomer asked a burly fighter.
"Go outside and take a look."
He goes over to the door and flings it wide. "See, it's all still ... Wait! Where did the town go!"
"Welcome to the Brotherhood of the Wild Geese." The fighter comes over with a mug of ale. "Here, you'll probably be needing this. I know I did, when it happened to me."
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...