Oh come one guys! The "Does Erik even exist poll?" is complete hoodad.
All of us who read the book know that Gaston Leroux is bent on proving to us
the phantom did at one point exist, he even had the persian write a four
chapter narrative, detailing his experience with the torture chamber housed in Erik's apartment.
I am thoroughly convinced Erik was mad and that Gaston Lerox is mad with truth.
Both equally mad, for different reasons of course.
House by the Lake:A Phantom of the Opera Guild