The Voynich manuscript is the most mysterious of all texts. It is seven by ten inches in size, and about 200 pages long. It is made of soft, light-brown vellum. It is written in a flowing cursive script in alphabet that has never been seen elsewhere. Nobody knows what it means. During World War II some of the top military code-breakers in America tried to decipher it, but failed.
Illustration of a Devil found in the 13th century medieval manuscript Codex-Gigas. According to legend the book was written by a monk who sold his soul to the devil so in order to complete the manuscript in one night, and so complete the task which would let him off his execution (by being walled in alive) for breaking his monastic vows.