Question: In which year was the first of the vampire-themed fantasy romance novels for which The Twilight Saga: The Official Illustrated Guide serves as a spin-off encyclopedic reference book first published?
Sentence (from "Monuments of Athens"): Monuments of Athens (Greek: Μνημεία Αθηνών) is a book first published in 1924 by the Greek archaeologist Alexander Philadelpheus.
Relevant evidence: No