But archaeologists who have worked here have never turned up evidence to support the account in the Bible, and there is only one archaeological find that even suggests the Jews were ever in Egypt. Books have been written on the topic, but the discussion has, for the most part, remained low-key as the empirically minded have tried not to incite the spiritually minded.

“Sometimes as archaeologists we have to say that never happened because there is no historical evidence,” Dr. Hawass said, as he led the journalists across a rutted field of stiff and rocky sand.

The site was a two-hour drive from Cairo, over the Mubarak Peace Bridge into the Northern Sinai area called Qantara East. For nearly 10 years, Egyptian archaeologists have scratched away at the soil here, using day laborers from nearby towns to help unearth bits of history. It is a vast expanse of nothingness, a flat desert moonscape. Two human skeletons were recently uncovered, their bones positioned besides pottery and Egyptian scarabs.

As archaeological sites go, it is clearly a stepchild to the more sought-after digs in other parts of the country that have revealed treasures of pharaonic times. A barefoot worker in a track suit tried to press through the crowd to get the officials leading the tour to give him his pay, and tramped off angrily when he was rebuffed.

Recently, diggers found evidence of lava from a volcano in the Mediterranean Sea that erupted in 1500 B.C. and is believed to have killed 35,000 people and wiped out villages in Egypt, Palestine and the Arabian Peninsula, officials here said. The same diggers found evidence of a military fort with four rectangular towers, now considered the oldest fort on the Horus military road.

But nothing was showing up that might help prove the Old Testament story of Moses and the Israelites fleeing Egypt, or wandering in the desert. Dr. Hawass said he was not surprised, given the lack of archaeological evidence to date. But even scientists can find room to hold on to beliefs.