“These two great pyramids, say our sacred books, were the work of the giants who lived in the days before the flood of Noachis, or Noah. They are the tombs of their kings, and were centuries in being built according to our years. And when the gods brought the unknown oceans over the earth, to punish the nations which living so long became as wise as the gods, but at the same time grew as wicked as wise, these vast sepulchres withstood, like the lesser hills, the waters of desolation, and remained in ruinous grandeur, not only as witnesses of the flood, but monuments of a past people whose towers, as well as tombs, reached unto the heavens. […] When the waters departed, the gods limited the lives of men to one hundred years; hence the pyramids that the kings this side the flood have erected are comparatively small in magnitude. […] All the power of engines and art cannot uprear such stones six hundred feet into the air. This is giants’ work.” […]
“Then you believe that there were giants in the earth in the days before the flood?” I said, doubtingly.
“These pyramids attest the fact,” he replied, with an impressive gesture of his right hand towards the opposite one. “Noah himself, says tradition, and his sons, Chephres, Chnfu, and Amun or Men-Cherines, were gigantic, and are worshipped as gods, as you know, not only here and in Syria and Ethiopia, but in the Orient, and beyond the seas, under various names. In the third pyramid Amun was entombed. In the second is Chephres, or Chefret, who, when an aged king, was brought from the place where he died, and placed in a sarcophagus above the chamber where lay the king who found sepulture there before the flood. Within the pyramid on which we are, rest the sacred bones of the Prince-god Noah, who, at the age of nine hundred and fifty years, came hither to be buried by the side of his eldest son Chephres. ‘Such a mourning of the nations, all of whom sprung from his loins, the earth never knew, and will never witness more,’ say the sacred scrolls of the temples. All kings, and queens, and princes, and lords, and nobles, of every realm followed the embalmed body of their father and deity; and King Menes, his grandson, went up from Egypt with all the hosts of the land to meet the funeral procession, and to receive the divine body. Cheops is but another name for Noah. Here also is entombed Menes.”
Granted, Ingraham was writing fiction, but he specified that everything in his book was backed by research and intended to “harmonize” entirely with the Bible, as interpreted by Episcopalians. He clearly meant for his readers to accept the story as the Christian position on the Pyramids.
Fun fact: Ingraham’s Pillar of Fire was one of the three novels on which Cecil B. DeMille’s Ten Commandments movie was based. Sadly, there are no Nephilim in that movie. Ingram died the year after the novel was published when he accidently shot himself in the vestibule of his Mississippi church.