How does the vampire—i.e. both the Count specifically and vampires more generally—manifest as a figure of the unknown? What power does obfuscation lend the vampire? Why is this a power at all (i.e. what is this lack of clarity’s relationship to knowledge)?
Examples you might examine (you may choose others, of course):
—Vampires as non-corporeal
—Dracula appearing to Mina as a mist
—Dracula destroys the manuscripts, sets fire to the archive