Exile by Aaron Allston

I loved the parts of this book that felt like an old-school Star Wars reunion (the Jag-Jaina-Zekk team and Leia, Han, and Lando going joyriding across the galaxy and running into Wedge and Corran and then later Luke and Mara) and I thought Ben, who's sent on a special mission by Jacen (really, a test to see if Ben qualifies to become Jacen's Sith apprentice), developed a lot over the course of the book. Really, the part of this book that was a problem, is the part of the series that's a problem. I don't buy the plot line of Jacen falling to the Dark Side. Jaina would actually make more sense, in some regards. This civil war seems more contrived than most, and because it's the fear of war that seems to drive Jacen down a dark path, it makes the whole thing sillier.