"I am ready.

But you are late." Raoul, peeping from behind the curtain, could not believe his eyes, which showed him nothing.

Christine's face lit up.

A smile of happiness appeared upon her bloodless lips, a smile like that of sick people when they receive the first hope of recovery.
The voice without a body went on singing; and certainly Raoul had never in his life heard anything more absolutely and heroically sweet, more gloriously insidious, more delicate, more powerful, in short, more irresistibly triumphant.

He listened to it in a fever and he now began to understand how Christine Daae was able to appear one evening, before the stupefied audience, with accents of a beauty hitherto unknown, of a superhuman exaltation, while doubtless still under the influence of the mysterious and invisible master.
The voice was singing the Wedding-night Song from Romeo and Juliet.
Raoul saw Christine stretch out her arms to the voice as she had done, in Perros churchyard, to the invisible violin playing The Resurrection of Lazarus.