Necros Nui was once referred to by another name, which has now been lost to history, and occupied by Matoran and the Skakdi race, who had been relatively peaceful in this age before Spiriah's experiments on them. The Great Beings had set up a vast machine on the largest island island in the chain to access the other worlds that they had made to tie to the Matoran Universe, such as the Elemental Zones or the Backup Dimension. However, a few ambitious scientists, Makuta and Matoran alike, began to experiement with the mechanics. Their incompetence at the machines workings opened up a temporal hole to a dead world that began to leak a deadly radiation into the Matoran Universe, altering the forms of the beings that lived there. Many changed into twisted mockeries of the beings who released th