The Non-Canon Expert looks at how Darth Plagueis’s research into immortality through midi-chlorian manipulation resulted in his study and understanding of how to retain one’s consciousness after death, explaining how even though Darth Plagueis understood the potential to achieve a version of immortality through the ability of becoming what was understood as a Force Ghost, the Dark Lord of the Sith rejected that option. This is a Legends story for Darth Plagueis and the ability to retain one’s consciousness as a Force Ghost, with information found within the Legends sources «Star Wars: Darth Plagueis,» the Book of Sith reference book, The Jedi Path reference book, and the Episode 3: Revenge of the Sith novelization.