Star Wars Darth Plagueisis a New York Times best seller and is a Star Wars Legends novel that was written by author James Luceno and is about a Muun sith named Plagueis who is the master of Darth Sidious(aka Palpatine) and like i mentioned before Plagueis is a Muun species and the Muun are very knowledgeable in financing and politics. The Muun run the IBC (International Banking Clan) and is the biggest bank in the entire Star Wars galaxy and they tend to rarely ever leave their home planet of Muunilist. You may have heard of Plagueis because he was mentioned in the movie Star Wars Revenge of the SIth by Palpatine saying Have you ever heard of the tragedy of Darth Plagueis the wise?