Prior to the Egyptians ... when new races searched for waterways inland from the oceans and seas ... the sands have drifted, the trees were dying off, and the waters started to recede ... mystical writings were discovered on newly placed coverings that no one was able to decipher. The outer coatings were slightly translucent, and altars were barely visible within each pyramid. Humans couldn't have such strange items be seen to those crossing the waters, so they decided to cover over these pyramids with stone to hide what was underneath ... and the rest, they say, is History. Tim N