Christopher Knight has co-authored four books with Robert Lomas. His first book, The Hiram Key, became an international bestseller, selling a million copies worldwide.p>Alan Butler is fascinated by history, and an expert in astrology and astronomy. He has published several successful books, and is a playwright and radio dramatist.

'A major breakthrough at last! Knight and Butler's stunning discovery could completely change the way we view our remote past... and origins.' Robert G. Bauval, author of The Orion Mystery 'Absolutely fascinating, and very, very convincing. Knight and Butler's findings provide compelling scientific evidence of the existence of an advanced, technological civilisation in remote antiquity.' Graham Hancock, author of Fingerprints of the Gods