The Voynich Manuscript is a coded medival manuscript, suspected to be copied from the much older Holy Grail. Only one passage from this has been decoded, and this is this, decoded by Adam Lewis in The Doomsday Code,
You must make public the last part of this message Adam Lewis, and I promise someone will come and explain everything. When she comes, it is important you tell her this: "Seek Cabot at Kirklees in 1194". Do not reveal any more of this message to anyone else. The last part now follows. Pandora is the word. The word leads to truth. Fellow traveller, time to come and find it.
This passage had start and end markers of glyphs from the Lost language of the Windtalkers. It is supposed that this is the only decodeable part of the manuscript.