Good luck!
For interest, the
Codex Gigas, the "Big Book", also known as the Devil's Bible:
http://en.wikipedia.org/wiki/Codex_Gigas
Legend has it that in 13th-century Bohemia, a disgraced monk sentenced to be walled up alive vowed to write a grand book in a single night to forgo his punishment. Failing, he sold his soul to Lucifer, who one way or another helped him complete the task in the night. (Though studies suggest one hermit-monk working for 20 to 30 years is more likely). The so-called Devil's Bible includes a terrific image of Satan on page that has turned black as if burned (darkened by continual exposure to light, actually). Also included are magic spells, including ways of exorcising demons and preventing demonic possession.
The
Codex Gigas passed through the Sedlec Monastery, later site of the Sedlec Ossuary for victims of the Black Death:
http://en.wikipedia.org/wiki/Sedlec_Ossuary
Later it came into the collection of Holy Roman Emperor Rudolf II, a devotee of the occult, astrology, and alchemy. It was later taken as war booty to Sweden. When their castle caught fire in 1697, the
Codex Gigas was rescued and hurled out the window, hit and injured a bystander, and several pages were lost and blown away. They were never retrieved.
Actual medieval occultism is so much more interesting than what a lot of modern TV shows and novels make up. I saw the National Geographic documentary yesterday.