In the early 1990s Bauval had been trying to obtain a translation of Hermetica by Walter Scott. He then came across a new edition printed by Solo Press with a foreword by Adrian Gilbert. Bauval contacted Gilbert after being interested in his foreword concerning a link between an Alexandrine school of Hermes Trismegistus and the pyramid builders of the Fourth dynasty of Egypt. They went on to write The Orion Mystery together, which became a bestseller in the United Kingdom. BBC2 broadcast a documentary on Bauval's theories around the time of the book's publication. He has also co-authored three books with Graham Hancock, including a very contentious book on possible artificial structures on Mars (The Mars Mystery - 1998).

Works

• The Orion Mystery (with Adrian Gilbert) (1994)
• Keeper Of Genesis (with Graham Hancock) (1995)
• The Mars Mystery (with Graham Hancock) (1998)
• Secret Chamber (1999)
• Talisman (with Graham Hancock) (2004)
• The Egypt Code (Oct 2006)

Bauval is specifically known for the Orion Correlation Theory (OCT). This proposes a relationship between the fourth dynasty Egyptian pyramids of the Giza Plateau and the alignment of certain stars in the constellation of Orion.

One night in 1983, while working in Saudi Arabia, he took his family and a friend's family up into the sand dunes of the Arabian desert for a camping expedition. His friend pointed out Orion, and mentioned that Alnitak, the smaller more easterly of the stars making up Orion's belt was offset slightly from the others. Bauval then made a connection between the layout of the three main stars in Orion's belt and the layout of the three main pyramids in the Giza necropolis.

This theory has inspired some books of such other successful writers as Javier Sierra. Sierra and Bauval work together in the study of a "Golden Age of the Humanity", dated in our most remote past.

Some of the hypotheses put forward in his works are regarded by most mainstream archaeologists and historians as a form of pseudoscience. Among his more notable contentions is the supposed existence some 12,500 years ago of a now-forgotten advanced progenitor civilization, not explicitly named as such but identifiable with "Atlantis".

Several Egyptologists have however entertained the general idea that some astronomical correlations may have figured in or been represented by certain physical features and orientations in Ancient Egyptian monuments — but not the exact claims and correlations put forward by Bauval and his co-authors. In particular, the aspects of the OCT which claim there is a link between the Ancient Egyptian structures at Giza and the constellations as they looked some 12500 years ago are yet to find any support from within the field.

One such expressing an interest in these ideas was a leading authority on the Pyramids of the mid- to latter-20th century, Dr I.E.S. Edwards. In a 1992 statement, Edwards says of Bauval "In my opinion he has made a number of interesting discoveries"; however Robert Bauval himself acknowledges that categorical statements about Edwards' position on the OCT as later developed by Bauval and Hancock in The Keeper of Genesis cannot be made as he did not comment directly on the material. Bauval further acknowledges that "he would have been unlikely to give further support to such controversial ideas linking Giza and 10,500 BC or 11,500 BC" [1].

Bauval was also featured in the film 2012: Science or Superstition, a documentary describing how much of what we're hearing is science and how much is superstition.