9. NEPHTHYS was the sister of Isis and her companion in all her wanderings and troubles; like her she had a place in the boat of the Sun at creation, when she probably typified the twilight or very early night. She was, according to one legend, the mother of Anubis by Osiris, but in the texts his father is declared to be R[=a]. In funeral papyri, stelae, etc., she always accompanies Isis in her ministrations to the dead, and as she assisted Osiris and Isis to defeat the wickedness of her own husband (Set), so she helped the deceased to overcome the powers of death and the grave. Here then we have the nine gods of the divine company of Heliopolis, but no mention is made of Horus, the son of Isis, who played such an important part in the history of his father Osiris, and nothing is said about Thoth; both gods are, however, included in the company in various passages of the text, and it may be that their omission from it is the result of an error of the scribe. We have already given the chief details of the history of the gods Horus and Thoth, and the principal gods of the other companies may now be briefly named. NU was the "father of the gods," and progenitor of the "great company of the gods"; he was the primeval watery mass out of which all things came. PTAH was one of the most active of the three great gods who carried out the commands of Thoth, who gave expression in words to the will of the primeval, creative Power; he was self-created, and was a form of the Sun-god R[=a] as the "Opener" of the day. From certain allusions in the Book of the Dead he is known to have "opened the mouth" [Footnote: "May the god Ptah open my mouth"; "may the god Shu open my mouth with his implement of iron wherewith he opened the mouth of the gods" (Chap. XXIII.)] of the gods, and it is in this capacity that he became a god of the cycle of Osiris. His feminine counterpart was the goddess SEKHET, and the third member of the triad of which he was the chief was NEFER-TEMU. PTAH-SEKER is the dual god formed by fusing Seker, the Egyptian name of the incarnation of the Apis Bull of Memphis, with Ptah. PTAH-SEKER-AUSAR was a triune god who, in brief, symbolized life, death, and the resurrection. KHNEMU was one of the old cosmic gods who assisted Ptah in carrying out the commands of Thoth, who gave expression in words to the will of the primeval, creative Power, he is described as "the maker of things which are, the creator of things which shall be, the source of created things, the father of fathers, and the mother of mothers." It was he who, according to one legend, fashioned man upon a potter's wheel.