"And you find it here?" I asked.

Louis shrugged his shoulders.

"Paris, monsieur," he answered, "is my home. It is always a pleasure to me to see smiling faces, to see men and women who walk as though every footstep were taking them nearer to happiness. Have you never noticed, monsieur," he continued, "the difference? They do not plod here as do your English people. There is a buoyancy in their footsteps, a mirth in their laughter, an expectancy in the way they look around, as though adventures were everywhere. I cannot understand it, but one feels it directly one sets foot in Paris."

I nodded—a little bitterly, perhaps.

"It is temperament," I answered. "We may envy, but we cannot acquire it."

"It seems strange to see monsieur alone here," Louis remarked. "In London, it is always so different. Monsieur has so many acquaintances."

I was silent for a moment.

"I am here in search of some one," I told Louis. "It isn't a very pleasant mission, and the memory of it is always with me."

"A search!" Louis repeated thoughtfully. "Paris is a large place, monsieur."

"On the contrary," I answered, "it is small enough if a man will but play the game. A man, who knows his Paris, must be in one of half-a-dozen places some time during the day."