Tim Wallace-Murphy

Tim Wallace-Murphy (1930–2019) studied medicine at University College, Dublin, and then qualified as a psychologist; he then became an author, lecturer, and historian. He has written more than a dozen books, including The Mark of the Beast (with Trevor Ravenscroft), Rex Deus, and Rosslyn: Guardian of the Secrets of the Holy Grail. This last book provided invaluable source material to Dan Brown for his bestselling novel The Da Vinci Code. Tim was a dedicated supporter of the restoration and preservation of Rosslyn Chapel, near Edinburgh, Scotland, undertaking excavations and field work with a team of like-minded people, whom would become lifelong friends.