Darsin was a male Human who served as the apprentice of the Sith Lord Darth Rivan during the New Sith Wars. He resided in Rivan's Sith fortress on the planet Almas, where his master subjected him to experiments and dark side rituals. Darsin eventually came close to attaining the rank of Dark Lord of the Sith and planned to assume the name Darth Malus, but before he could become a Sith Lord, he died as a result of Rivan's alchemical manipulations. Darsin's consciousness survived as an incorporeal Sith spirit, and Rivan bound him to act as a guardian of the Sith fortress. Centuries later, in about 20 BBY, the Chevin slaver Phylus Mon, the Human Dark Jedi Karae Nalvas and several of their minions ventured into the Sith fortress in search of the secrets of the creation of Sith battlelords, a c