Voynich Manuscript
From Jenny Everywhere Wiki
The Voynich Manuscript was a notorious grimoire written in a mysterious language, unknown in every universe with contacts to the Strange and Wonderful House. A copy of the Voynich Manuscript, annotated in “a completely different alien language from the manuscript itself”, was contained within the Jenny Everywhere Museum in the House. (PROSE: Our Strange and Wonderful House: The Jenny Everywhere Museum)