The Lost Treasure of King Juba: The Evidence of Africans in America Before Columbus, Bear & Co., 2003

The Lost Treasure of the Knights Templar: Solving the Oak Island Mystery, Destiny Books, 1999

The Mayan Calendar and the Transformation of Consciousness, Bear & Co., 2004

The Message of the Sphinx: A Quest for the Hidden Legacy of Mankind, Three Rivers Press, 1997

The Millennium Myth: Love and Death at the End of Time / Quest Books, 1995

The Mummy in Fact, Fiction and Film (with Susan D. Cowie), McFarland & Co., 2002

The Lost Book of Enki: Memoirs and Prophecies of an Extraterrestrial God / Bear & Co., 2002

The Lost Civilization of Lemuria: The Rise and Fall of the World’s Oldest Culture, Bear & Company, 2006

The Lost Continent of Pan: The Oceanic Civilization at the Origin of World Culture, Bear & Company, 2016

The Lost History of the Little People: Their Spiritually Advanced Civilizations Around the World, Bear & Company, 2013