(42) Isis is shown with her son Horus in her arms. She is crowned with the lunar orb, ornamented with the horns of rams or bulls. Orus, or Horus as he is more generally known, was the son of Isis and Osiris. He was the god of time, hours, days, and this narrow span of life recognized as mortal existence. In all probability, the four sons of Horus represent the four kingdoms of Nature. It was Horus who finally avenged the murder of his father, Osiris, by slaying Typhon, the spirit of Evil.