'Ancient Egyptian texts refer to a god called Thoth who came with others from a land to the west, across the ocean, which was destroyed in a great flood. Revered by the Greeks as Hermes Trismegistus, Thoth was the god of Knowledge. Before leaving Egypt he committed his treatises on Mathematics, Architecture and Astronomy to a series of volumes known as the 'Books of Thoth'. Casting a spell he concealed these texts from human sight and they have been sought through the ages ever since. A thorough account of the search and historical background is detailed in the book 'Secret Chamber' by Robert Bauval, who states that mention of this chamber and the texts is made in the Westcar Papyrus.'
As mentioned in an earlier post, Robert Bauval has just published a new edition of his book entitled 'Secret Chamber Revisited'. Definitely worth a few hours of your time.