My principal interest of vampirism falls within a more general fascination with the supernatural.
To quote Seán Manchester (who quotes another vampire expert in holy orders):
"Down the ages there has been no dispute between those who studied this phenomenon that a vampire is a predatory demon of the worst kind imaginable. Montague Summers, that vampirologist and author of an earlier generation, put it succinctly: 'Throughout the whole vast shadowy world of ghosts and demons there is no figure so terrible, no figure so dreaded and abhorred, yet dight with such fearful fascination, as the vampire.'
Summers reminds us: 'There is no more terrible tradition that that of the vampire, a pariah even among demons. Foul are his ravages; gruesome and seemingly barbaric are the ancient and approved methods by which folk must rid themselves of this hideous pest.'
Demons are certainly threatening; yet among that legion the most dreaded of them is undoubtedly the vampire."