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) and Canadian productions. The recording of the 1986 original London cast, released by Polydor Records in 1987, was released in both a single CD "Highlights From The Phantom of the Opera" and a two CD "Phantom of the Opera", both of which have been certified 4× Platinum in the US and sold 4.97 million copies as of January 2017. "The Complete Recordings" edition has sold 507,000 copies since 1991. "Phantom" was also certified 3× Platinum in the UK. The Canadian cast recording went 2× Platinum in Canada. In Switzerland, "Phantom" was certified 3× Platinum and "Highlights" was certified 2× Platinum.