Beneath the Clockwork Mountain
The great layers beneath the Gnomish cities belong to the Dwarves. One of the densest populations of the people in the known world. The stout folk rarely leave their homes in enough numbers to have impressed upon the modern world above in centuries. Ruled by clans of royal born Dwarves whose lines stretch back to recorded history.
Scholars of Dwarven life, such as they are point to a decades brewing civil war between the royal and working classes. This tension has made it difficult for even the neighboring Gnomes to maintain safe or reliable trade.
Recently below the deepest mines in roads into the sprawling Underdark have been discovered. Clashes with the various denizens have added extra tension in the Dwarvish kingdom.