If toi could see any étoile, star trek novel turned into an episode what would it be and why?

That's easy! "Ghost Walker" par Barbara Hably. Published in 1991, it relates the story of TOS Enterprise being highjacked par an alien hostile. Without giving too much away, get this: Spock, McCoy, Uhura, Nurse Chapel and Kirk's l’amour latest l’amour interest must conduct a SEANCE to speak to a disembodied Kirk roaming the Enterprise! Crazy huh? toi gotta read this novel!

vulcan glory and sarek, because they both give toi background information on spock's life.

I just read a few weeks il y a the novel "Pathways" with the VOYAGER crew. This one would make a great episode. We learn alot of the background on the main characters and what makes them who they are.