An acclaimed historian sleuths out literature's most famous vampire, uncovering the source material - from folklore and history, to personas including Oscar Wilde and Walt Whitman - behind Bram Stoker's bloody creation. In more than a century of vampires in pop culture, only one lord of the night truly stands out: Dracula. Though the name may conjure up images of Bela Lugosi lurking about in a cape and white pancake makeup in the iconic 1931 film,...