Abydos, at the outset, was the cemetery, or rather one of the cemeteries, of This. And the god of This was the sun-god Anher, who was depicted in human form. In the age which produced the doctrine of the Ennead, Anher was identified with Shu, the atmosphere, or, more strictly speaking, the god of the space between sky and earth was merged into the god of the sun. But it was not only at This that Anher was worshipped. He was also the god of Sebennytos, which adjoined the Busirite nome, and where, therefore, the human sun-god was in immediate contact with the human god of the dead. What the mummy was to the living man, that Osiris was to Anher.(134) The double relation between Osiris and Anher in both Lower and Upper Egypt cannot be an accident. Osiris became the god of Abydos, because Abydos was the cemetery of This, whose feudal god was Anher. The relation that existed in the Delta, between Anher the sun-god of Sebennytos, and Osiris the god of the dead at Busiris, was transferred also to Southern Egypt. Whom or what did Osiris originally represent? To this many answers have been given. Of late Egyptologists have seen in him sometimes a personification of mankind, sometimes the river Nile, sometimes the cultivated ground. After the rise of the solar school of theology the Egyptians themselves identified him with the sun when it sinks below the horizon to traverse the dark regions of the underworld. Horus the sun-god of morning thus became his son, born as it were of the sun-god of night, and differing from his father only in his form of manifestation.(135) We have, however, one or two facts to guide us in determining the primitive character of the god. He was a mummified man like Ptaḥ of Memphis, and he was the brother and enemy of Set. Set or Sut became for the later Egyptians the impersonation of evil. He was identified with Apophis, the serpent of wickedness, against whom the sun-god wages perpetual war; and his name was erased from the monuments on which it was engraved. But all this was because Set was the god and the representative of the Asiatic invaders who had conquered Egypt, and aroused in the Egyptian mind a feeling of bitter animosity towards themselves. As late as the time of the Nineteenth Dynasty, the Pharaohs who restored Tanis, the Hyksos capital, to something of its former glory, called themselves after the name of the Hyksos deity. Thothmes III. of the Eighteenth Dynasty built a temple in honour of Set of Ombos, who was worshipped near Dendera; and if we go back to the oldest records of the united monarchy, we find Set symbolising the north while Horus symbolises the south. Before the days of Menes, Set was the god of Northern Egypt, Horus of Southern Egypt. In the prehistoric wars of the two kingdoms the two gods would be hostile to one another, and yet brethren.