Darth Quellus, a Dark Lord of the Sith, pledged his allegiance to the Sith Empire. This Sith Lord was sent as an emissary to Aaloth, which was a Twi'lek colony, accompanied by his Sith followers with the intention to conquer the planet. Legend has it that he employed the power of the dark side, placing a curse on their candles causing them to burn with a black flame. The curse proved incredibly strong, and even the sun was shrouded in darkness. Ultimately, Quellus had to flee aboard starship following burn injuries he sustained.