"You have all sorts of people here," I remarked. "I noticed a Chinaman—he was very much like the Chinese ambassador, by the bye—leaving as I came in."

The proprietor extended his hands.

"We have people of every class, monsieur," he assured me. "One comes and tells his friends, and they come, and so on. I believe that there was a Chinese gentleman here to-night. One does not notice. We were busy."

I paid my bill and departed. The commissionnaire pushed open the door, whistle in hand. He looked at me a little curiously. Without doubt he had watched my attempt to speak to Delora. I drew a half-sovereign from my pocket.

"Tell me," I said, "do you want to earn that?"

He was a German, with a large pasty face and a yellow moustache. His eyes were small, and they seemed to contract with greed as they looked upon the coin.

"Sir!" he answered, with a bow.

"Who was the Chinese gentleman with the splendid motor-car?" I asked.

The man spread out his hands.

"Who can tell?" he said. "He dined here to-night in a private room."