Serapeum

The first library, that of Bruchium, containing four hundred thousand volumes, was destroyed by fire during the war of C�sar against the Alexandrians; and the second, that of Serapeum, comprising two hundred thousand volumes, bequeathed by Antony, was completely pillaged in the reign of Theodosius.

It is remarkable that the Serapeum of Alexandria was, in the Sibylline books, specially menaced with destruction.823.Eunapius,

The stelæ were erected at certain intervals along the line of the Canal, and the remains of three others of them have been found, on a mound one kilometre south of Tel el-Maskhûtah or Pithom, a little to the east of the station of the Serapeum on the Suez Canal, and on the side of a mound between the 61st kilometre of the Canal and the telegraphic station of Kabret.

Had he gone straight from Gizeh to the Fayyûm along the edge of the desert, he would have passed the step-pyramid and the Serapeum at Saqqâra.

But whatever might have been the reason, Saqqâra and its Serapeum were unknown to the dragomen, and consequently to Herodotos as well.