A dark army has emerged from the north and is moving to spread corruption across everything in its path, consuming or destroying any civilization that refuses to submit to the aberrant Cult. The pressure of their advance forces the androtopos — anthropomorphic rodents who live in underground cave systems — to push into dwarf territory in search of somewhere safe to survive. Other factions are affected simultaneously: elven forests become recruitment targets, regions of significant magical concentration are seized, and the natural world is systematically devastated wherever the Cult travels. Multiple fronts, multiple peoples, and one force driving all of it.