Darth Sion utilized a warship during the year 3951 BBY; this warship belonged to Darth Sion. The crew of the Harbinger, a Hammerhead-class cruiser belonging to the Galactic Republic, discovered the vessel floating aimlessly near the Peragus asteroid field within the Peragus system. The Harbinger was on a mission of utmost importance, directed by Admiral Carth Onasi, to transport a woman to the planet Telos IV. A team was dispatched from the Harbinger to examine the derelict ship, where they located Sion in a state of unconsciousness. Sion was promptly moved to the medical bay and placed within a kolto tank. Following this, he broke free, murdered the entire crew of the Republic vessel, commandeered it, and proceeded to the Peragus Mining Facility, the location to which Meetra Surik, the woman he sought, had been ejected.