"I do not understand you. You treat him as a monster, you speak of his crime, he has done you harm and I find in you the same inexplicable pity that drove me to despair when I saw it in Christine!"

The Persian did not reply. He fetched a stool and set it against the wall facing the great mirror that filled the whole of the wall-space opposite. Then he climbed on the stool and, with his nose to the wallpaper, seemed to be looking for something.

"Ah," he said, after a long search, "I have it!" And, raising his finger above his head, he pressed against a corner in the pattern of the paper. Then he turned round and jumped off the stool:

"In half a minute," he said, "he shall be ON HIS ROAD!" and crossing the whole of the dressing-room he felt the great mirror.

"No, it is not yielding yet," he muttered.

"Oh, are we going out by the mirror?" asked Raoul. "Like Christine Daae."

"So you knew that Christine Daae went out by that mirror?"

"She did so before my eyes, sir! I was hidden behind the curtain of the inner room and I saw her vanish not by the glass, but in the glass!"

"And what did you do?"

"I thought it was an aberration of my senses, a mad dream.