You know how sometimes on here I'll link to an item, and only preface it with the deathless phrase, "The story's in the URL"? Well, this is one of those times, but I can't emphasise enough how the seemingly disparate elements form a truly fascinating cohesive whole:
http://news.nationalgeographic.com/news/2010/02/100226-vampires-venice-plague-skull-witches/ Highly recommended.