The Historian - literary vampire novel by Elizabeth Kostova

Perfect for fans of Dracula, history, and gothic horror. From Wikipedia: The Historian interweaves the history and folklore of Vlad Țepeș, a 15th-century prince of Wallachia known as "Vlad the Impaler", and his fictional equivalent Count Dracula together with the story of Paul, a professor; his 16-year-old daughter; and their quest for Vlad's tomb. The novel ties together three separate narratives using letters and oral accounts: that of Paul's mentor in the 1930s, that of Paul in the 1950s, and that of the narrator herself in the 1970s. The tale is told primarily from the perspective of Paul's daughter, who is never named.