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 me to enter it, without danger, through the passage in the third cellar.

It was important, for everybody's sake, that I should know exactly what was inside.

One day, tired of waiting for an opportunity, I moved the stone and at once heard an astounding music: the monster was working at his Don Juan Triumphant, with every door in his house wide open.

I knew that this was the work of his life.