Welcome to the romantic and mysterious world of Royston Cave, England. Filled with Templar symbolism and folklore. What was it for? Who created it and why? the Templars are well-known to have been the catalyst for many of the great mysteries such as the Holy Grail and King Arthur. But what is the truth? Sylvia Beamon is the world leading expert on this enigmatic cave and she tells all. What is the Book of Enoch? When was it written? What secrets does it hold? Author, David Humphreys, explains why he has spent years unraveling this ancient document. Filmed in association with Edge Media. TV.