In this work, Colin Wilson goes beyond the conviction that a pre-Ice-Age civilization existed before being wiped out by some great catas trophe. He suggests that a highly advanced knowledge system, developed by this society was passed on to ancient man by survivors. It is this knowledge system, argues Wilson; that enabled the ancient Egyptians to move heavy blocks of stone; drill a granite coffin with an accuracy that still baffles modern engineers; and hollow out stone vases whose long necks will not admit a child's finger. Wilson attempts to reconstruct the knowledge system, and try to understand how these old ones thought, felt and communicated with the universe.