Investigating the Unexplained Author:Paul Roland THE GREATEST MYSTERIES... — The Sphinx * The Great Pyramid * Roswell * The Philadelphia Experiment * NASA Moon Landings * Alien Abductions * and more. — THE GREATEST INVESTIGATORS... Interviews with * Erich Von Daniken * Betty Shine * psychic spy David Morehouse * Robert Temple * UFO expert Jenny Randles * the real-life Indiana Jones, David Hatche... more »r-Childress * and others.« less