Star Wars: Darth Vader by Charles Soule

In the wake of Revenge of the Sith, follow Vader as he ascends to power as a Dark Lord of the Sith! Having lost everything dear to him and now more machine than man, Vader takes his first steps into a darker world — beginning by eradicating the galaxy's remaining Jedi! But librarian Jocasta Nu is making a desperate effort to preserve the Jedi legacy, and the stirrings of a rebellion have begun in the Mon Cala system!

To ensure the Emperor's grip on the galaxy is absolute, Vader must deal swiftly and brutally with any uprisings — but he has a goal of his own. And as darkness rises above Mustafar, the scene of Vader's greatest defeat, will the man once called Anakin Skywalker realize his true destiny?