Peter Tompkins Related books Mysteries of the Mexican Pyramids Harper & Row • 1976 Mysteries Of The Mexican Pyramids Harpercollins Secret Life of Nature Llewellyn Publications • 2008 Secrets of the Great Pyramid Harpercollins • 1978 The Magic of Obelisks Harpercollins • 1984 THE SECRET LIFE OF PLANTS Harpercollins • 1973