How would you handle this using the Legend system?
So they've spent generations underground in their safe shelters occasionally sending unfortunates to forage outside but notably not allowing them back in to insure the Overseer doesn't lose control over their captive community until they feel the time is right to return to the surface and reclaim what they think is theirs?
Strange this might be the duergar or drow of the post apocalyptic earth, but I can't help throwing in Thundarr the Barbarian in as a comparison!
So they've spent generations underground in their safe shelters occasionally sending unfortunates to forage outside but notably not allowing them back in to insure the Overseer doesn't lose control over their captive community until they feel the time is right to return to the surface and reclaim what they think is theirs?
Strange this might be the duergar or drow of the post apocalyptic earth, but I can't help throwing in Thundarr the Barbarian in as a comparison!