Graham Hancock is the author of The Sign and the Seal, Fingerprints of the Gods, The Message of the Sphinx, Heaven's Mirror, Supernatural, and other bestselling investigations of historical mysteries.
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'With the original unabridged text of Supernatural, I offer the reader an investigation that explores the human experience with psychedelics from the Stone Age to the Space Age and the role of these extraordinary plant medicines as tools to investigate th... SEE MORE