Genoma - 4th Age - Rise of the Lich
The dwarven Citadel of Sentinel.
- Until 13855 Controlled by the Dwarven Emperium as an outpost in the depths to warn of incursions by the followers of the Lurker in the Deep.
- From 13856 – 14707 the Sentinel is an semi-open city run in a nominal fashion by the Council of 12, however the city is secretly under the control of a consortium of Drow and Illithid who use psychic manipulation to keep the city under control.
Sentinel was founded during the second age by the Dwarven Emperium. Located in a roughly circular natural cavern roughly 3 miles on a side.
The northern wall of the cavern allows the Prater River to flow into the cavern. After decades of mining and shaping the dwarves created a crater lake bowl with an island in the center allowing the Prater to pool into a large lake that empties via a 300’ waterfall in the southern wall. Carved into the south wall are a series of lock/levies and great ramps to facilitate commercial travel.
The east wall was opened up and carved into a terraced city that houses roughly 40,000 souls comfortably calling the Sentinel home and another 10,000 temporary/transient souls. Out the north east wall the great road connects into the major through roads of the underdark making Sentinel a natural choke point of both the road and river networks.
Dwarven Citadel tower on the center island in the shape of a 200’ tall dwarven warrior. Inside are the halls of the Knighthood of 
The eastern wall is carved with warrens of tunnels and homes built into the rock face with rope bridges and carved rock ledges up ~ 150’ on the wall.
Council of 12
4 Noble Houses:
Vargas Desulth Human Male
Antares Melk Human Male
Blissia Capad Gnome Female
Devon Stonebreaker Dwarf Male
The 5 Guild Seats:
Schmendrik Dwarf Male Diggers Union
Xandril Tiefling Female Merchants Guild
Alagard Human Male Craftsmen Guild
Etmere Halfling Male Porters Guild
Josc Kalvin Human Male Lockmens Union
The Peoples Seats:
Kael Jabar Human Male Representing the Docks, Ledges and Warrens
Naroc Oathkeeper Dwarf Male Representing the Citadel
Mother Pren Halfling Female Representing the Halfling Flotilla