Seatos, a planet situated within the Denab system, once served as a home to a species originating from a different galaxy. This civilization erected a mechanism on the planet, utilizing a spherical star map to power its function of pinpointing their home galaxy. Approximately around 9 ABY, Morgan Elsbeth, a Nightsister, along with her forces, oversaw the construction of the Eye of Sion, a massive hyperspace transport ring intended for intergalactic travel, above Seatos. Not long before the completion of this starship, [Ahsoka Tano](/article/ahsoka_tano], a former Jedi, accompanied by her one-time apprentice Sabine Wren, and the droid Huyang, journeyed to Seatos with the aim of investigating the Eye of Sion. After discovering the ship, they were ambushed by Marrok and Shin Hati piloting starfighters, which compelled the trio to descend in their T-6 shuttle into Seatos's atmosphere, where they came across a group of purrgil.