Star Wars: Darth Plagueis - James Luceno

and does a pretty good job, though part of it felt almost like a check list of things to explain (and ways to work in the titles of episodes 1-3).  that aside, quite enjoyable book



slight spoiler below:












star wars canon vs 'legends' aside - the book pretty much confirms the conception theory about anakin, with the exception being that it wasn't darth siddeous/palpitine that fathered anakin through the force, but his master, darth plagueis.