“You?”

“Read your invitation again.”

I looked at the card sent out in my name, and then I noticed that an address was placed in one corner, “Twenty-two Beacon Street, Strand.”

“What is the meaning of this?”

“It is a house I have hired for two weeks,” he replied. “The dinner, as you see, takes place there. Hankey and I make all preparations.”

“And I do nothing?”

“You prepare yourself for the hour of action. Brave friend, au revoir!”

“Au revoir, Marquis.”