Forgotten Civilization

New Discoveries on the Solar-Induced Dark Age

2012

Origins of the Sphinx

Celestial Guardian of Pre-Pharaonic Civilization

2017

Pyramid Quest

Secrets of the Great Pyramid and the Dawn of Civilization

2005

The Parapsychology Revolution

A Concise Anthology of Paranormal and Psychical Research

2008

Voices of the Rocks

A Scientist Looks at Catastrophes and Ancient Civilizations

1999

Voyages of the Pyramid Builders

2003