GRAHAM HANCOCK is the author of the major international bestsellers The Sign and The Seal, Fingerprints of the Gods and Heaven's Mirror. His books have sold more than five million copies worldwide and have been translated into 27 languages. His public lectures and TV appearances, including the three-hour series Quest For The Lost Civilisation, have put his ideas before audiences of tens of millions. He has become recognised as an unconventional thinker who raises legitimate questions about humanity's history and prehistory and offers an increasingly popular challenge to the entrenched views of orthodox scholars.