Alain

The third book in the trilogy (or tetralogy) focuses on the events on Moonbase Epsilon that occur because of the personal choices of Alain Vegas. Captain Blanchard easily fills her role as Commodore Holguin's XO, interacting with moonbase personnel while insisting all personnel do their jobs, no excuses, you were picked to be all the way out here because you know how to do your job, so do it. Meanwhile, two rescue workers begin meditating, Garry Baumann finds a project to take his mind off of having been mentally kidnapped (or was that hijacked?) and Jaen finally gets to go to earth as the official Rayi emissary to wrangle an official treaty with their new allies, the Earthi.
She and her fellow Rayi merely have a slight problem with bringing that many critters along with them on a 3-year Transport journey.