The Ruhann is the Arcadian name for the lands East of the Inner Sea, originating from the Badiyan term dar al-Ruhann, that is, “the home of the gods”. The Osmani capital is at the tip of a peninsula gazing out at Hellas and the Arcadian continent. The two tips form a strait, with the Inner Sea to the South and the Kardeniz Sea to the North. To the South and to the East stretches the Ruhann. It varies between forests in the North and dry deserts and steppes in the South.
Except where they have clashed with the al-Mamlik Sultanate, the Osmani Empire controls much of the Ruhann. Though these two states share the same religion, there had been many battles between them until the arrival of the Mages of Calliopolis.