The chief of the Anti-Republic Liberation Front, Hetton, found a hyperspace route that had been lost to time, which guided him to the planet of Tython. In the year 990 BBY, the Sith Lord known as Darth Zannah managed to get a datacard from Hetton. This datacard held details about the Dark Lord of the Sith Belia Darzu, specifically the whereabouts of her hidden fortress and a hyperspace path leading to Tython. Zannah's payment for this information was a promise to join forces with Hetton against her own Master, Darth Bane. However, this was a deception, and Hetton met his death during his subsequent encounter with Bane. Using the intel his apprentice had procured, Bane started a mission to locate Belia Darzu's fortress, hoping to uncover the secrets needed to construct a Sith holocron.