The world of Endland is covered in aether. It is raw, invisible magical energy. It clings to and permeates from various substances, especially metal and water. Being exsposed to it over many years is lethal, and because the entire world has it, beings die at a very young age.
Exsposure to materials or areas that are particularly aetheric causes indiiduals to become ill. Too much exsposure leads to choughing, sneezing, vominiting, hair, eye and skin discoloration, fainting, seizures, and eventually death.