Shadows of the Empire by Steve Perry
The only novel set between
The Empire Strikes Back and
Return of the Jedi, this book was published in 1996 as a refreshing return to the classic trilogy era, in the years where most novels took place after the defeat of the Emperor. The book is essentially a lead-in to
Return of the Jedi, setting up the background for many of the events in that movie. However, it revolves heavily around a new character, the crime kingpin Prince Xizor, who is competing with Vader for the Emperor's favor.
Though the book tells a reasonably engaging story, many readers remember it more for its
creepy attempted rape scene (for the record, most Star Wars novels have no sexual content at all).
Buy from Amazon!
This is a classic era book from the Legends timeline. It will likely be contradicted by newer books (if so, just think of it as an alternate universe).
Shadow Games by Michael Reaves and Maya Kaathryn Bohnhoff