“And the other?”

“Was to try you, my dear friend. It contains only bricks. Forgive me for putting you to this test. I should not have doubted you.”

“But to try me?” I said. “How would you have known if I had called in a detective?”

The Marquis looked at me.

“I had not thought of that,” he confessed.

It was my turn to look at him, and, I fear, not altogether with a flattering eye.

“Why was it addressed to Mr. Balfour?” I asked.

“A ruse,” he replied, with his air of confident mystery returning somewhat. “A mere ruse, my dear friend.”

“I perceive,” I said, a little dryly. “Well, you can trust me for my own sake not to explode this box; also to make the preparations for this dinner.”

“My friend, I make them.”