Spock's World (Star Trek: The Original Series)

Now this was interesting - it took the basic premise of what if a lot of Vulcans wanted to have their own Brexit, but from the Federation and those annoying humans? I don't know how much more the actual novel showed versus the audiobook since the older audios are all abridged, but the debates and questions that the Federation members (Kirk, Spock, McCoy mainly) versus the Vulcans were interesting to follow. The reason behind the want-to-split was a bit less so, kind of just a way to throw that particular character in there it seemed like, and was over way too quickly, but it was okay. To me, the best part was that it was McCoy that was figuring out the pieces to the puzzle, and that was fun, and super ironic.