I waited for at least thirty minutes and then pressed the spring in my turn. Everything happened as with Erik. But I was careful not to go through the hole myself, for I knew that Erik was inside. On the other hand, the idea that I might be caught by Erik suddenly made me think of the death of Joseph Buquet. I did not wish to jeopardize the advantages of so great a discovery which might be useful to many people, “to a goodly number of the human race,” in Erik’s words; and I left the cellars of the Opera after carefully replacing the stone.

I continued to be greatly interested in the relations between Erik and Christine Daaé, not from any morbid curiosity, but because of the terrible thought which obsessed my mind that Erik was capable of anything, if he once discovered that he was not loved for his own sake, as he imagined. I continued to wander, very cautiously, about the Opera and soon learned the truth about the monster’s dreary love-affair.