The Sign and the Seal: The Quest for the Lost Ark of the Covenant

Fingerprints of the Gods: The Evidence of Earth's Lost Civilization

America Before: The Key to Earth's Lost Civilization

Magicians of the Gods: Sequel to the International Bestseller Fingerprints of the Gods

The Mars Mystery: The Secret Connection Between Earth and the Red Planet

Underworld: The Mysterious Origins of Civilization

The Message of the Sphinx: A Quest for the Hidden Legacy of Mankind

Supernatural: Meetings with the Ancient Teachers of Mankind

The Master Game: Unmasking the Secret Rulers of the World

Serpent in the Sky: The High Wisdom of Ancient Egypt

Aftershock: The Ancient Cataclysm That Erased Human History