What does the reader learn in the Epilogue of the novel, The Historian?

In the Epilogue, which is set in the narrator's present day, we learn that the narrator has continued the Dracula scholarship. The narrator also informs the reader that in the year 1476, Dracula paid for a Wallachian monastery to be grandly adorned, on the condition that he may be entombed there. We also learn that he didn't intend to remain dead for very long because he had discovered that the secret to immortality rests in a monastery in Gaul.