A private room! Well, that was something, at any rate!

"You do not know his name or where he comes from?" I asked.

The man shook his head, glancing nervously towards the interior of the restaurant.

"The other gentleman?" I asked.

"I do not know his name, sir," the man declared with emphasis. "He has been here once or twice, but always alone."

I put the half-sovereign in my pocket and drew out a sovereign. The man stretched out an eager hand which he suddenly dropped. He pointed down the street. The swing door of the restaurant remained closed, but over the soiled white curtain I also could see the face of the proprietor peering out.

"It is the second turn to the left," the man said to me.

"And if you want that sovereign made into five," I said carelessly, "my name is Captain Rotherby, and I am going from here to Claridge's Hotel."

I walked down the street and left him looking after me. At the corner I glanced around. The proprietor and the commissionnaire were talking together on the pavement.