Fate Core: Agents of the Black Buck
Undermountain is the name of an abandoned silver mine, once used by King Oala’s forces at the very beginning of the War Without End. The mine was quickly evacuated after drider moved into the area and claimed the tunnels for themselves, building a hidden tomb deep inside.
In the centuries since, the drider died out, with the exception of a single remaining queen who rules over her brood. Recently, her clutch was driven out from their homes by a band of mercenaries led by Jarvas Sloane, a suspected operative of the Black Buck. The spiders moved their clutch into the neighboring village: Patriot’s Hollow.