Re: Best Novels, Comics, etc. Set Between TOS Season 3 and ST:TMP?
I love Barbara Hambly's Crossroad
. It's set a few months before the five-year mission ends, and features (among many things) Chapel deciding what to do with herself when the mission is over.
"All of time and space. Everywhere and anywhere, every star that ever was. Where do you want to start?"
Exploring the Universe