That was Wildstorm's Enter The Wolves, which is also one that I read and really enjoyed. It's actually a sequel to the novel Sarek, but I've never read that one so I'm not really sure how they connect. I read it with no problem, without even realizing it was a sequel to the book, so whatever connection is there must not be to strong.Also I know their was a really good one that dealt with the conflict between Spock and Sarek over the Carddisian peace treaty and sort of followed up that throwaway line from the show.