High Adventure by the Saltless Sea
In the lands to the South, now known as the Minelands, lived a race about which almost nothing is now known. What records survive seem to indicate that the race that lived there first waged a war to push all other peoples off of their lands then either dismantled, destroyed or hid all of the physical evidence of their culture and finally dispatched spies and assassins to erase all outside knowledge of them, including their appearance, language, history and name.
Even the timeline of when all of this occurred is unclear, though general consensus is that it was between 2 and three thousand years ago. Even the eventual fate of the race is uncertain – early attempts to colonize the suddenly-vacant lands met with disaster after disaster well into the current millenium and a group of scholars conducting research into the area were found slaughtered as recently as seven hundred years ago.