However, Valkorion attempted to take control of the Outlander's body, leading to a war within the Outlander's mind that ended with the final death of the Immortal Emperor. The Outlander returned to Zakuul and sat upon the throne, pacifying the Eternal Fleet.
Following the overthrow of Arcann, and the subsequent death of Vaylin, the Eternal Fleet went rampant, attacking worlds such as Coruscant, Dromund Kaas, and Zakuul itself. Until the end of his reign, Valkorion decided that his children, Arcann and Vaylin, were unworthy of the Eternal Throne, and thus when his essence inhabited the Outlander, made his clear intention for the Outlander to take the throne in his place. The term "Eternal Throne" was also used to refer to the rulership of the Eternal Empire, and later on, in the post- Galactic War era, rulership of the whole galaxy. Designed and built by generations of Zakuul's greatest minds at the behest of their Emperor Valkorion, the Eternal Throne is connected to a hyperwave relay station ten kilometers below the Spire, powered by two hundred generators that tap into Zakuul's core that allowed its occupant to communicate with and control the GEMINI units that ran the Eternal Fleet. The Eternal Throne was the ceremonial throne of the Emperor of the Eternal Empire, located at the peak of the Spire above the atmosphere of the planet Zakuul. The new seat of power in the galaxy." ― Valkorion