Ah! What could be cooler than the 15th-century Voynich Manuscript, a document that has stumped linguists and cryptographers since its rediscovery? Yeah, It’s super fascinating. It uses different letters and people have tried corresponding them to various languages like Latin (it has some Latin words in the margins). The paintings are about medical/”sciency” stuff, and the tradition in alchemy was along the lines of “if it sounds mystical it probably works better”. I wish I could have the author to dinner to ask!