The lord and ruler of the Lils was the god who was worshipped at Nippur. He bore, accordingly, the title of En-lil, “the lord of the ghost-world,” and his temple was one of the oldest sanctuaries of Sumerian Babylonia.(223) It was a centre of primeval civilisation, and the source of the magical arts which gathered round the belief in the spirits of the underworld. But the lordship of the underworld implied also a lordship over the earth, of which it formed a part. En-lil, “the lord of the ghost-world,” thus became in time the ruler, not only of the dead, but also of the living. His empire ceased to be confined to the realms of darkness, and was extended to this upper world of light and of mankind. Up to the last, however, his primitive character was never forgotten. In the story of the Deluge he appears as the destroyer of men; Namtar, the plague-demon, is his minister; and like Kingu, the demon-god of chaos, he wore the tablets of destiny, which determine when men shall die.(224) En-lil was accordingly the sovereign of the dead as well as of the spirits of the underworld. The Sumerian _lil_ must therefore have once included the ghosts of men as well as other ghosts which never had a material existence in the flesh. The _lil_ must once have meant that immaterial part of man which, after death, had its home in the underworld, from whence it issued at night to satisfy its cravings for food with the garbage of the streets. By the side of the Zi there must also have been the Lil; but we must wait till more monuments of Sumerian antiquity are discovered before we can define the exact relationship between them.(225) In the Epic of Gilgames it is said that when the shade of Ea-bani was called up from the dead, like that of the shade of Samuel by the Witch of Endor, “it arose from the earth like a cloud of dust.”(226) It was fitting that the ghost should be likened to a dust-storm. Its home was in the ground; and there, in the dark underworld, its food, we are told, was dust. But the word used by the poet for the ghost of Ea-bani is not _lil_. It is another word, utukku, which occurs frequently in the magical texts. Here the _utukku_ is a general name for a demon, and we hear of the _utukku_ “of the field,” “of the mountain,” “of the sea,” and “of the grave.” The “_utukku_ of the grave” must be the restless ghost of some dead man which has become a spirit of darkness, working evil to mankind. The ordinary _utukku_, however, had no human ancestry; it was a demon pure and simple, which sat upon the neck of the sufferer and inflicted upon him pain and death. It corresponded with the vampire of European folk-lore; and just as the ranks of the vampire might be recruited from the dead, so too might the class of demons whom the Babylonians termed _utukki_.