Early chapters focus on the suppression of scientific findings throughout history. Centuries ago, the Catholic Church was the greatest source of interference, imprisoning, coercing, torturing, and murdering anyone who refused to recant their findings and support the Church's official views. More recently, especially in the field of Egyptology (though he has been known to express official contempt for new findings outside of Egypt as well) Zawi Hawass, has hindered the acceptance of many new ideas. He has held various official titles, including the Minister of State for Antiquities Affairs and Secretary General of the Egyptian Supreme Council of Antiquities. The bottom line is he ruled Egypt's monuments and controlled what was said about its past. Anyone alleging that something in Egypt had origins further back than about 3,000 B.C. or that there may have been a great civilization before dynastic Egypt would be ridiculed in print and other media and denied further access to Egyptian sites like Giza.
Hawass would not only rant against specific archeologists; he would even turn against science itself if evidence went against his cherished paradigms. Creighton and Osborn quoted him commenting on certain evidence he didn't like saying: "Carbon dating is useless. This science will never develop. In archeology, we consider carbon dating results imaginary." (p. 153) This is not the only established form of verification Hawass has denounced, nor is this book the only one that portrays Hawass in a negative light.
Eventually the authors get to the crux of their theories: that the planet has experienced devastating natural disasters, that they occur regularly at times based on a 13,000 year cycle which is half of a precession cycle, and that the pyramids were built by a technologically advanced civilization to reveal knowledge of this cycle of disasters to future civilizations. There is lengthy analysis of certain key issues, including the location of Giza for such a message, and the focus of 23.5 degree angles in many internal passageways and shafts inside the Great Pyramid. The authors agree with Robert Bauval that the three main pyramids represent the stars in Orion's belt, and go further to suggest that the four "air shafts" in the pyramid all focus on the belt star Al-Nitak. Specifically, they claim that the open shafts mark the position of this star in recent times, and that the sealed shafts which do not continue all the way to the surface of the pyramid represent an ancient position of the star prior to the last shifting of the poles of the earth. They claim that the star's position seemed to move 6.5 degrees because Egypt itself suddenly moved 6.5 degrees. (pp. 228-236)
Readers interested in pole shifts or the idea that one may happen soon, (in 2012, for example) will be intrigued by the authors' analysis of a great circle defined by all the many pyramids at Giza, along with certain lines and angles with the sphinx. They conclude that "the Giza pyramids... served as an astronomical clock or calendar that would allow their descendants to know the precise timetable of this deadly Earth calamity and perhaps also the next date of the cycle." (p. 263) They note four significant dates, two indicating past calamities, and two indicating future destruction: approximately 9700 B.C., 3980 B.C., 2012 A.D., and 8980 A.D.
As an author on related topics (ancient civilizations, pole shifts, cycles of destruction, how to time the next cataclysm, prophecy) I found the book especially useful. Some cultures are more clear regarding their understanding of the cycle of precession. Some, like the Maya, are very clear in establishing a future date to watch out for. The Pyramid of Kukulkan at Chichen Itza has also been described as an alarm clock set for the early 21st century, and I have long suspected that the Pyramids at Giza may also point to a specific moment in time through some astronomical arrangement which had not yet been understood. Despite my own conclusions that Bible prophecy points us to 2012 and 2019, I still hesitate to accept any theory which conveniently concludes that someone long ago intended to warn us about the very publicized year 2012. Creighton and Osborn have described such a warning in the Egyptian pyramids. Perhaps they are right, and we should worry less about conclusions leading to 2012 being mere hype or "too good to be true," and worry more about the idea that something could happen soon.
One thing these authors did not focus on was the idea of the "pyramid inch" or that internal passageways in the Great Pyramid act as a timeline of events with an inch representing a year. With this in mind I find it interesting that if the original capstone were still on the pyramid and the height was 481 feet and several inches, perhaps 8 inches... then the original height of 5780 inches *could* be a warning of "completion" in the Hebrew calendar year 5780, which would correspond to my conclusion for Judgment Day in December 2019.
Regardless of the specifics (exactly 2012 or not) the authors do a great job describing Giza as a warning of future events built by an ancient and advanced civilization.