Changes

Memory stone is black, and often finely veined with white or silver threading. It was used by the [[Elderling]]s to build roads, buildings, cities and [[Skill-pillar]]. There is a [[stone quarry]] beyond the [[Mountain Kingdom]], but there might be other sources for the stone as well. Along the [[Rain Wild River]] there are beaches of [[memory sand]] which probably are of the same origin than the memory stone.