The objects found in the graves of the predynastic Egyptians, i.e., vessels of food, flint knives and other weapons, etc., prove that these early dwellers in the Nile Valley believed in some kind of a future existence. But as the art of writing was, unknown to them their graves contain no inscriptions, and we can only infer from texts of the dynastic period what their ideas about the Other World were. It is clear that they did not consider it of great importance to preserve the dead body in as complete and perfect state as possible, for in many of their graves the heads, hands and feet have been found severed from the trunks and lying at some distance from them. On the other hand, the dynastic Egyptians, either as the result of a difference in religious belief, or under the influence of invaders who had settled in their country, attached supreme importance to the preservation and integrity of the dead body, and they adopted every means known to them to prevent its dismemberment and decay. They cleansed it and embalmed it with drugs, spices and balsams; they anointed it with aromatic oils and preservative fluids; they swathed it in hundreds of yards of linen bandages; and then they sealed it up in a coffin or sarcophagus, which they laid in a chamber hewn in the bowels of the mountain. All these things were done to protect the physical body against damp, dry rot and decay, and against the attacks of moth, beetles, worms and wild animals. But these were not the only enemies of the dead against which precautions had to be taken, for both the mummified body and the spiritual elements which had inhabited it upon earth had to be protected from a multitude of devils and fiends, and from the powers of darkness generally. These powers of evil had hideous and terrifying shapes and forms, and their haunts were well known, for they infested the region through which the road of the dead lay when passing from this world to the Kingdom of Osiris. The "great gods" were afraid of them, and were obliged to protect themselves by the use of spells and magical names, and words of power, which were composed and written down by Thoth. In fact it was believed in very early times in Egypt that Ra the Sun-god owed his continued existence to the possession of a secret name with which Thoth had provided him. And each morning the rising sun was menaced by a fearful monster called Aapep, which lay hidden under the place of sunrise waiting to swallow up the solar disk. It was impossible, even for the Sun-god, to destroy this "Great Devil," but by reciting each morning the powerful spell with which Thoth had provided him he was able to paralyse all Aapep's limbs and to rise upon this world. Since then the "great gods," even though benevolently disposed towards them, were not able to deliver the dead from the devils that lived upon the "bodies, souls, spirits, shadows and hearts of the dead," the Egyptians decided