--pentagram symbol representing the five elements of creation and attributes-- if you superimpose the vitruvian man figure over it, you see how it also represents the sacred geometry of body of man. (According to what I was taught, this drawing is mirrored. From left side counterclockwise it should be air, earth, fire, water) ymmv
This would have quite the effect for a prop. Build the book with your traditional silk and fan flames, and make a spot light LED with rotating barrel for the embers. To go the extra mile you could do the embers as a peppers ghost reflected on glass.
The Rawlinson necromantic manuscript, 15th century This collection of texts on magic and fortune-telling in Latin and Middle English is one of four Bodleian manuscripts consulted by Alan Garner when he was writing The Weirdstone of Brisingamen. Popularly known as the Rawlinson necromantic manuscript, it contains spells, conjurations, invocations, and ‘experimenta’ (true experiences) of angels. MS. Rawl. D. 252