The plague's impact on the imaska Empire didn't seem to be that great on the surface.
However, at the beginning of the outbreak of the plague, the imaska Empire, with the power of the whole country, still could not control the large-scale death of the population. Although this strange machine Empire had now re-established its peak, because of this powerless experience, they regarded the gods as an imaginary enemy.
As they had long offended the native gods of Faerun, the imaska Empire had gone to other main material worlds to plunder and capture slaves from other worlds.
Of course, in the process, they also considered the faith of the creatures of the Prime Material Plane.
So, in order to not be found by the gods of the slaves from the other world, they set up a plane barrier.
The nine huge mechanical pyramids were the physical nodes of the plane barrier.
