The Voynich manuscript has been around for over 500 years. In all that time parts of it have not been deciphered by scholars. The manuscript is really at the Yale University Library. It is the starting point for these two novels:

IN TONGUES OF THE DEAD by BRAD KELLIN

The Voynich manuscript is being watched. Unbelievably the manuscript is translated out loud by an autistic boy. The Vatican dispatches Father Valori to verify the translation. Father Valori and the boy find themselves being chased by several factions. Is the Voynich manuscript really written in the language of the Nephilim? According to the Bible, the Nephilim are the offspring of fallen angels and human women. Where all the Nephilim sent into darkness or did some of them remain on the earth? Is the boy the last surviving Nephilim?

THE BOOK OF GOD AND PHYSICS by ENRIQUE JOVEN

Father Hector is a science teacher at a Spanish Jesuit school. His hobby is the mystery of the Voynich manuscript. He is also the school archivist. Within the archives he finds a possible trail of the Voynich. Was the Voynich the work of Tycho Brahe and/or Johannes Kepler? Has Father Hector found the key to decipher the manuscript? Are the Vatican and scientists still in a struggle for supremacy?

P.S. Have you seen pictures of the Kryptos sculpture at the CIA headquarters in Virginia? One part of it has baffled modern cryptographers!