The Phantom of the Opera detective mystery entitled "The Mystery of the Yellow Room" in 1907, and four years later he published "Le Fantôme de l’Opéra". The novel was first published within newspapers before finally being published as a novel in 1911. The setting of "The Phantom of the Opera" came from an actual Paris opera house that Leroux had heard the rumors about from the time the opera house was finished. The details about the Palais Garnier, and rumors surrounding it, are closely linked in Leroux's writing. The underground water tank that he wrote about is accurate to this opera house, and it is
The Phantom of the Opera (1986 musical) interrupted by Raoul, who accuses them of sending him a note saying that he should make no attempt to see Christine again. Carlotta and Piangi then burst in, demanding to know who sent Carlotta a note warning that her "days at the Opéra Populaire are numbered." As André and Firmin try to calm Carlotta, Madame Giry delivers another note from the Phantom: he demands that Christine replace Carlotta as the Countess in the new opera, "Il Muto," and that Box 5 be kept empty for him. The managers are warned they will face a "disaster beyond imagination" if these demands