Kim Newman discusses the novels that inspired Anno Dracula, his epic pop-culture mashup of all things vampire, set in a Victorian London ruled by Dracula. Newman's long fascination with Dracula led to two more novels in the setting and several short stories, several of which can be found online.
Devoted to late nineteenth century adventure novels? Irredeemably neurotic? For you, there is Philip Jose Farmer's Wold Newton universe, in which such extraordinary gentlemen as Dracula and Sherlock Holmes are related through complex genealogies dating back to a peculiar meteorological event in the British countryside. This is meta-nerdiness.