Far more revealing than the book, however, is Petrie's original Sinai expedition log, which is now held by the Petrie Estate Trustees. Even though the book was pulled out of circulation not long after its release, it was still substantially edited in the hope that it would be acceptable. But it was not, and it was withdrawn.
Even though Sir Flinders Petrie was Britain's foremost archaeologist at the time (with the British Museum's Egyptology Department and London's Petrie Museum founded in his honour), this did not alter the fact that he received no further funding from the Egypt Exploration Fund after the Serabit discoveries. His future funding came from a school of Archaeology in Cairo.
In discovering the Serabit temple, he had seemingly contravened the rules of the funding association. i.e. Only to report discoveries wich supported Church teachings. By finding an Egyptian temple on the mountain of Moses it was deemed that he might have found history -- but not history that was in compliance with scriptural requirement.
We'll be telling the Petrie story in the movie that's being made in LA -- based on Lost Secrets, and currently in pre-production. See my web page [www.graal.co.uk]
Also (as I mentioned in a previous posting), we are making a TV documentary on the subject this year.