The Luxium represents the upper half and primary seat of the Solunarian Capital and one of the dual-cities that comprises Solunarium Proper. Situated between the foot of the volcanic Mount Sorokyn and the wide River Vasta, this above-ground metropolis boasts five thriving districts beneath the shadow of the glorious Palatium Furiarum (The Blazing Palace) from which the Solar Court rules in splendour. This bustling metropolis is by far the most populous region in the realm and, along with its shadowy sister-city the Umbrium, houses upwards of eighty percent of the Solunarian population at any given time. During the reign of a Solar Court, every major government agency in the kingdom is headquartered in the Luxium, with the notable exception of The Silver Sentinels, the covert intelligence agency run by the House of Phaedryn-Sol’Aværys.