Darth Vader tall, grim general "Darth Vader" was already close in line with his final depiction, and the protagonist "Anikin Starkiller" had a role similar to Luke Skywalker's as the 16-year-old son of a respected warrior. After the success of the original "Star Wars" (1977), series creator George Lucas hired science fiction author Leigh Brackett to write the sequel with him. They held story conferences and, by late November 1977, Lucas had produced a handwritten treatment. The treatment is similar to the final film, except that Vader does not reveal he is Luke's father. In the first draft that Brackett would write
Star Wars: Episode III – Revenge of the Sith state to fight a Sith Lord. These are a few examples of many descriptions of characters' feelings and inner narrative. There are even some humorous lines added in, including extra dialogue in the battle between Grievous and Obi Wan - Grievous says, "I was trained by Count Dooku," and Obi-Wan replies, "What a coincidence; I trained the man who killed him." An official prequel novel, "Labyrinth of Evil" () by James Luceno, was published in 2005. It is set near the end of the Clone Wars and directly before the events of "Star Wars: Episode III Revenge of the Sith".