It is the world’s most mysterious manuscript. A book, written by an unknown author, illustrated with pictures that are as bizarre as they are puzzling – and written in a language that even the best cryptographers have been unable to decode. No wonder then, that this script even has a part in Dan Brown’s latest bestseller, "The Lost Symbol". The Voynich Manuscript has captivated academics and occultists in equal measure since its discovery 100 years ago.