"What a night!" said Hanaud. "What a wonderful night!" And he applauded until he split his gloves. At the end of the opera he cried: "We will go and take supper at the Semiramis. Yes, my friend, we will finish our evening like gallant gentlemen. Come! Let us not think of the morning." And boisterously he slapped Ricardo in the small of the back.

In spite of his boast, however, Hanaud hardly touched his supper, and he played with, rather than drank, his brandy and soda. He had a little table to which he was accustomed beside a glass screen in the depths of the room, and he sat with his back to the wall watching the groups which poured in. Suddenly his face lighted up.

"Here is Carmen Valeri!" he cried. "Once more we are in luck. Is it not that she is beautiful?"

Mr. Ricardo turned languidly about in his chair and put up his eyeglass.

"So, so," he said.

"Ah!" returned Hanaud. "Then her companion will interest you still more. For he is the man who murdered Mrs. Blumenstein."

Mr. Ricardo jumped so that his eyeglass fell down and tinkled on its cord against the buttons of his waistcoat.

"What!" he exclaimed. "It's impossible!" He looked again. "Certainly the man fits Joan Carew's description. But--" He turned back to Hanaud utterly astounded. And as he looked at the Frenchman all his earlier recollections of him, of his swift deductions, of the subtle imagination which his heavy body so well concealed, crowded in upon Ricardo and convinced him.

"How long have you known?" he asked in a whisper of awe.

"Since ten o'clock to-night."