Paul attempts to convince her that one of the librarians is trying to prevent their research into Dracula, but she is unpersuaded. Later, the librarian attacks and bites Helen. Paul intervenes and overpowers him, but he wriggles free. The librarian is then run over by a car in front of the library and apparently killed. Upon hearing her father's story, the narrator becomes interested in the mystery and begins researching Dracula as she and her father travel across Europe during the 1970s. Although he eventually sends her home, she does not remain there. After finding letters addressed to her that reveal he has left on a quest to find her mother (previously believed to be dead), she sets out to find him. As is slowly made clear in the novel, Helen is the narrator's mother. The letters continue the story her father has been telling her. The narrator decides to travel to a monastery where she believes her father might be. Part II Part II begins as the narrator reads descriptions of her father and Helen's travels through Eastern Europe during the 1950s. While on their travels, Helen and Paul conclude that Rossi might have been taken by Dracula to his tomb. They travel to Istanbul to find the archives of Sultan Mehmed II, which Paul believes contain information regarding the location of the tomb. They fortuitously meet Professor Turgut Bora from Istanbul University, who has also discovered a book similar to Paul's and Rossi's. He has access to Mehmed's archive, and together they unearth several important documents. They also see the librarian who was supposedly killed in the United States – he has survived because he is a vampire and he has continued following Helen and Paul. Helen shoots the vampire librarian but misses his heart and consequently, he does not die. From Istanbul, Paul and Helen travel to Budapest, Hungary, to further investigate the location of Dracula's tomb and to meet with Helen's mother, who they believe may have knowledge of Rossi – the two had met during his travels to Romania in the 1930s. For the first time Helen hears of her mother and Rossi's torrid love affair. Paul and Helen learn much, for example that Helen's mother, and therefore Helen herself and the narrator, are descendants of Vlad Țepeș. Part III Part III begins with a revelation by Turgut Bora that leads the search for Dracula's