Okay, you numb nuts. Dark EmpireTPB from Dark Horse comics. The emperor does in fact return ala clones. Luke does go dark, to become Palp's new apprentice, to stop the Palp, who at that time was the strongest force user. Unfortunately the dark side grabs poor Luke by his gonads and refuses to let go, just as Palp for sees. Leia does help to defeat that clone, with the help of her unborn child. Please understand, that Palp has figured out how to move his consciousness from clone to clone. The reason is that the dark side does worse damage to a body than meth, crack, and heroine combined. By ROTJ palp had already switched bodies twice and crapped up the next one. This series also features the return of Boba Fett. This series came out in 1989, and is where Timothy Zahn took the idea for cloning bodies, and is made reference to in multiple Star Wars books. So all you "it's a comic, it doesn't count" jerks out there need to realize that it did happen, and had it not there simply would be no more new Star Wars material.