Duel on Loronar

The duel on Loronar, in 3 BBY, was the final conflict between  Andyc Masaryn and  Adrienne Keane.

Masaryn had been hunting Keane relentlessly since she broke her aunt out of the the year before. He laid a trap for her on, putting out the word that he had captured a female Sith hybrid. Masaryn lay in wait with a few s and stormtroopers, expecting Keane to rise to the bait.

Keane arrived, but accompanied by mercenaries she had recruited, who engaged in battle with the stormtroopers and apprentices while Keane fought Masaryn one-on-one. The two dueled through the industrial complex in which Masaryn had set up his base, and their contest was equal for the first time since they had first joined blades twelve years before; knowing Masaryn would be after her, Keane had been training with her aunt Razielle since, and had drastically improved her fighting skills.

The two fought into a part of the facility clogged with pipes and machinery, drawing sparks and chemical leaks as their stray slashes cut things open. Eventually, Keane nicked a pipe, which unleashed caustic, flammable gas into Masaryn's face. As he recoiled, she held her lightsaber through the stream and it ignited, setting Masaryn's face on fire. He screamed and dropped his lightsaber, and Keane decapitated him.

After Masaryn's death, Keane took his Inquisitor's robe for herself and fed his corpse to her, Tyrant and Terror.