Star Wars: Tales of the Jedi - The Sith War #1

Picking up six months after Dark Lords of the Sith left off, Exar Kun and Ulic Qel-Droma are implementing their plan for revitalizing the Golden Age of the Sith. While engaged in teaching the darkside to Jedi students on the planet Ossus, Kun is more concerned with securing a powerful Sith Holocron from the library of Ossus. Ulic is developing the darkside military strategy -- which hinges on winning the loyalty of the warrior race led by Mandalore.