Rob Howells has spent the last twenty years investigating the mysteries of Rennes-le-Chateau, the Priory of Sion and the history of conspiracy theories. During this time he has built up an extensive knowledge and experience of secret societies, symbolism and esoteric thought. As a manager for five years of Watkins Books in London, one of the oldest esoteric bookshops in Europe, he extended his research into transpersonal psychology, sacred geometry, Gnosticism and alchemy. He also came into contact with a number of secret societies during this time including the Priory of Sion, the Freemasons, the Order of Lazarus, various neo-Templar orders plus Sufis and other religious groups. His first book, Inside the Priory of Sion was released in 2011 and his second book, The Last Pope , was released in June 2013. He can currently be seen in a documentary series called Forbidden History on the BBC Yesterday channel.