left the house on the lake and returned to it several
times, without, apparently, being forced to do so. It was very
difficult for me to clear my mind of Erik. However, I resolved to be
extremely prudent, and did not make the mistake of returning to the
shore of the lake, or of going by the Communists' road. But the idea
of the secret entrance in the third cellar haunted me, and I repeatedly
went and waited for hours behind a scene from the Roi de Lahore, which
had been left there for some reason or other. At last my patience was
rewarded. One day, I saw the monster come toward me, on his knees. I
was certain that he could not see me. He passed between the scene
behind which I stood and a set piece, went to the wall and pressed on a
spring that moved a stone and afforded him an ingress. He passed
through this, and the stone closed behind him.

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 Daae, 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.

He filled Christine's mind, through the terror with which he inspired
her, but the dear child's heart belonged wholly to the Vicomte Raoul de
Chagny. While they played about, like an innocent engaged couple, on
the upper floors of the Opera, to avoid the monster, they little
suspected that some one was watching over them. I was prepared to do
anything: to kill the monster, if necessary, and explain to the police
afterward. But Erik did not show himself; and I felt none the more
comfortable for that.

I must explain my whole plan. I thought that the monster, being driven
from his house by jealousy, would thus enable m