Lost Civilisations have been the subject of many books in recent years and invariably include a reference to the Atlantis mystery. Some writers have confined their analysis to the discoveries of conventional archaeology, while others have soared into cyber-speculation. The controversial books^[274,275] of Graham Hancock is perhaps the best known, while others, such as the British anthropologist, Richard Rudgley^[606], have produced valuable books on mankind’s prehistory. For those that are focussed on the enigma of Atlantis they have concentrated on various anomalous discoveries, such as the underwater Yonaguni ruins, the age of the Sphinx, the accounts of what appear to be flight and nuclear warfare in ancient India and the disputed date of the enormous Baalbek megaliths, all in an attempt to demonstrate that powerful civilisations existed during the last Ice Age and so add some credibility to Plato’s early date for Atlantis. Unfortunately, undisputed proof for such great antiquity is rarely available to support such propositions.