Arden Lyn was a female Human and master of Teräs Käsi who belonged to the Followers of Palawa. This ancient Dark Jedi, along with her fellow Palawans, joined the Legions of Lettow upon the advent of the First Great Schism between Force users, and became the lover of Xendor, head of the Legions. When Xendor was killed during the conflict, Lyn ascended to leadership of the Legions, although she was confronted by Jedi Master Awdrysta Pina. Lyn defeated Pina with a powerful Kashi Mer talisman, but the Jedi Master was able to stop Lyn’s heart before being destroyed, sending the martial artist into a Force trance.

25,000 years later, during the Great Jedi Purge, Lyn was reawakened in the Unknown Regions by scouts, before being confronted by three of Emperor Palpatine’s Inquisitors: Antinnis Tremayne, Ameesa Darys, and Grand Inquisitor Laddinare Torbin. After fighting off Tremayne and killing Darys, Lyn was maimed by Torbin, who spared her life so that she could serve Palpatine as an Emperor’s Hand. Lyn did so for a while, spurred on by the Emperor’s promise that he would resurrect Xendor from the dead. When she finally came to accept that Palpatine had been lying, she turned rogue, and aided Grand Admiral Demetrius Zaarin in his attempt to abduct the Emperor. The endeavor failed, and Lyn was forced to flee.