Robert Bauval is the celebrated author of The Orion Mystery and co-author (with Graham Hancock) of The Secret of the Sphinx, The Mars Mystery, and Keeper of Genesis. His contributions to the fields of Egyptology and archaeology have been widely acclaimed. n Adrian Gilbert is the bestselling author and co-author of The Orion Mystery, The Mayan Prophecies, Magi: The Quest for a Secret Tradition and The Holy Kingdom.n