The Phantom of the Opera still used for training firefighters. The mysteries that Leroux uses in his novel about the Phantom are still mysteries. "The Phantom of the Opera"'s origins came from Leroux's curiosity with the Phantom being real. In the prologue he tells the readers about the Phantom and the research that he did to prove the truth of the ghost. His findings connected the corpse from the opera house to the Persian phantom himself. The claims from the prologue of his novel were ones that Leroux held onto even up until his death in 1927. In Paris in the 1880s, the Palais Garnier
The Phantom of the Opera had already gained credibility as a crime mystery author in both French and English speaking countries. He had written six novels prior, two of which had garnered substantial popularity within their first year of publication called "The Mystery of the Yellow Room" and "The Perfume of the Lady in Black". Although previous commentators have asserted that "The Phantom of the Opera" did not attain as much success as these previous novels, being particularly unpopular in France where it was first published, recent research into the novel's early reception and sales has indicated the contrary. One book review from the New