The Cult of Nyarlathotep

In a hidden chamber beneath the pyramid a great mystery was revealed to me. The priests of Nyarlathotep brought forth the body of a dead man wrapped in a red shroud, they set to work on this corpse with their copper knives, performing certain mutilations to make the vessel suitable for their god.

Then with words older than mankind they called down the soul of Nyarlathotep into this body. The corpse lifted itself from the floor and the priests bowed before it. The blasphemous thing spoke to me, whispering of dark powers and terrible prophecies. The words of Nyarlathotep haunt me even to this day, but they shall not be revealed, for they are not meant to be read, only spoken from the mouth of the dead.
(from the Necronomicon of Abdul Alhazrad)