“ Daedalus Station is a 550-meter long space hulk drifting in trans-Uranian space, reduced to a derelict by the catastrophic failure of its dimensional reactor. The failure of the short-lived Paradigm VI reactor created a stable dimensional bore, a three-meter wide disc in the engineering section.
What is on the other side of the rift?
Why is the rift anchored to the ship instead of a point in space?”
“ A small, primitive village has yet to discover fire, which is a good thing because there are highly flammable (but not otherwise dangerous) gasses in the air. The heroes, blissful in their ignorance, don't know that and think it a wonderful idea to show the locals open flame.”
“ A basin type hole in the middle of the plains. Once every so many years the rains come very hard and flood this place. Maybe that is where the tribes congregate for their tribal meetings.”