Port 5 is an unfinished Creatures fan-fic by Jon Reeves. It is set in the Midgard timeline, following a group of Norns from Albia as they take part in a diplomatic meeting on a Jotun space station at the edge of the galaxy. The meeting, however, goes awry and it's up to everyone aboard to work together in defeating a familiar, yet mysterious enemy.
It was meant to be a Midgard story that didn't concentrate on any recurring characters so far explored in the series, but writer's block struck during the fourth installment and it was never finished.
It is available at the AGC Writers' Guild at Alex's Creatures (direct link).