A thousand years before the story of Ulic Qel-Droma, the Sith warred with one another on their homeworld of Ziost. Marka Ragnos is dead and a new Dark Lord must rise to take his place. But the potential successors, Ludo Kresh and Naga Sadow, have vastly different visions for what it means to take up the dark mantle. The fate of the galaxy hinges on the victor.