The Nine Doors. On his way to Lisbon to visit the owner of one of the copies, he encounters a beautiful blonde with striking green eyes. She identifies herself as "Irene Adler", and suggests that she is a fallen angel. They part company before he meets with Victor Fargas. Fargas is a renowned collector who has been selling off his extensive library to maintain his ancestral mansion. Corso compares Fargas' copy of The Nine Doors to Borja's, and finds subtle differences in the illustration plates. Most bear the initials of the book's notorious author, but some of the plates bear the initials "L.F." As Corso returns to his hotel, "Irene" guards Corso against an attack by "Rochefort". Corso leaves her to arrange a robbery of Fargas' mansion to obtain his copy of the book. "Irene" informs him that Fargas has been murdered and his copy has been burned. She and Corso leave for Paris. Corso confers with Replinger, an antiquarian and Dumas scholar, who authenticates the Dumas manuscript. As they talk, Corso spies Liana. He returns to his hotel and bribes the concierge to locate her hotel. "Irene" visits him, and they discuss theology; she implies that she is a witness to the events of the War in Heaven. Corso visits Baroness Ungern, whose charitable institution possesses the largest occult collection in Europe, including the third copy of The Nine Doors. They discuss the book's author, before Corso blackmails her with photo evidence of her Nazi sympathies so she will let him examine her copy. "Irene" calls to warn Corso that "Rochefort" is waiting outside. The Baroness translates the illustration captions while Corso compares Ungern's copy to Borja's. Later, Corso realizes that, while none of the three sets match each other, the plates bearing the initials "L.F." form a complete set of nine without duplications, and realizes the nine illustrations form a list of instructions for the famed summoning ritual. "Rochefort" attacks again, and is again repelled by "Irene". Using the concierge's information, Corso confronts Liana and her associate, but "Rochefort" renders him unconscious. When he revives, Borja's copy and the Dumas manuscript are gone. He learns that the Baroness has been killed in a fire at her library. Using Liana's obsession with Milady de Winter, he traces her to Meung, where he is captured by "Rochefort". "Rochefort" is instructed by a man calling himself "Richelieu" to bring Corso to