Invincible by Troy Denning

This book concludes the Legacy of the Force series. It was much more focused than the previous books in the series--it really boiled down to a series of confrontations between Darth Caedus and the rest of his family. I thought that the series ended correctly, for the way it was set up (although I didn't particularly like the way that Jacen went to the Dark Side--I felt it was inconsistent with his character as it had been set up in earlier books).