Hijarna, a planet situated in the vicinity of or within the Orus sector, resided in the Inner Rim region of the galaxy. Once a constituent of the Rakatan Infinite Empire, the planet was brought to light by the Fifth Alderaanian Expedition. This expedition also stumbled upon the millennium-old vestiges of an ancient civilization that had succumbed to extraterrestrial aggressors. Their final bastion was the Fortress of Hijarna, constructed from a material known as Hijarna stone, drawing parallels to the Hand of Thrawn found on Nirauan. The Fortress served as a meeting point for Talon Karrde's enterprise. Karrde convened the heads of the Smugglers' Alliance at the Fortress to strategize the retrieval of the crystal gravfield trap that Thrawn had prepared for the New Republic. During this gathering, Niles Ferrier's treachery was unveiled.