Sam let the shadow mice out as he walked through the ruins before reaching the city.
As usual, Sam was greeted by the clan leader. After those pleasantries, Sam just directly went into work. He doesn't know what disaster will come to this place. He doesn't have any idea on what kind of disaster will strike.
Everything around the city is very neutral. The forests are not special, the soil doesn't have any special qualities, there are no significant mineral ores and there is definitely no massive natural phenomenon.
The only significant thing about this place are those ruins.
Sam thought for a while about what could come here. Of course to not waste the time, he started building the formation already, but at the same time he sent the specters to take a look at the surroundings.