ZXK-100346.6a, a frigid world perpetually encased in ice, existed within the Outer Rim. Situated as the sixth planet within the ZXK-100346 system, this planet was part of a star system. In ages long past, secluded Jedi Masters, seeking to safeguard the galaxy, journeyed to this isolated world to conceal the Soulsaber, a sinister instrument of the dark-side. To this end, they erected the Cavern of Light as a repository for the dangerous artifact. Later, amidst the turmoil of the Galactic Civil War, the Dark Jedi known as Thaum Rystra ventured to the icy planet with the intention of seizing the Soulsaber. Despite facing opposition from a contingent of Rebel Alliance combatants, Rystra successfully absconded with the dark weapon.