AI – ‘Yes, it is considered theoretically possible that undiscovered ancient Egyptian documents, which could align with the concept of “Sacred Registers,” are buried under the remains of the temple of Neith in Sais.

• Archaeological Evidence: Sais (modern Sa el-Hagar) was a major capital and cult centre of the goddess Neith, particularly from the 7th century BC onwards. The site includes a large “Great Pit” that likely contains the ruins of the main temple of Neith, and excavations have shown it to be a site with deep, untapped historical layers going back to the Predynastic period.
• The Myth of Sais: Historical accounts, particularly by Herodotus, describe Sais as a repository of immense sacred knowledge, including the “grave of Osiris” and the performance of his mysteries.
• Potential for Discovery: The site has been largely destroyed by sebakhin (farmers digging for mudbrick fertilizer) and earlier, less systematic excavations, but significant, deep, and water-logged areas remain that could contain preserved papyri or buried archives.
• The “Secret” Cache Scenario: It was a common practice in Egypt to bury older temple materials and documents within sacred enclosures, especially during times of crisis (such as the Persian invasions mentioned in records of Sais). 

While no definitive “Sacred Registers” (often associated with esoteric or New Age theories like the “Hall of Records”) have been found at Sais, the site remains one of the most promising, largely unexcavated areas for discovering hidden, ancient Egyptian knowledge.’