The Non-Canon Expert looks at how the Episode 9: The Rise of Skywalker novelization introduced a new path for immortality developed by Darth Plagueis that would be utilized by his apprentice Darth Sidious during the Battle of Endor within the current Canon, explaining how this path for immortality compares to Darth Plagueis’s actions within the Legends lore. This is a story for Darth Plagueis and Darth Sidious that looks at both Canon and Legends, with the Canon information found within the Episode 9: The Rise of Skywalker novelization, and the Legends information found within the novel «Star Wars: Darth Plagueis» and the Book of Sith reference book.