The Historian by Elizabeth Kostova

A young woman finds an ancient book and some old letters belonging to her father, while rummaging through his library.  This arouses her curiosity and she embarks on a path of research  in an attempt to unravel secrets of the past.  This is a modern day Dracula tale that blends history and folklore.  It culminates in a search for Dracula's tomb in Bulgaria.  It is based on the premise that Dracula still lives.  A grepping read!!!