They sat and looked at me.

"I know I ought to have told you before," I said, "but the fact is I was so puzzled this morning when I woke and remembered the incident, that I didn't know what to do. It seems silly, if you look at it in the cold light of day, to draw any conclusions from such a trivial thing. I mean, if we had known nothing about them...."

"You think he's visiting her?" said Bill gravely.

"I didn't say so," I answered, "but the notion was in my mind, certainly. If so, why should he not? If Mac had a brother, and he came to New York he would not hesitate to come and see you."

"Not in the middle of the night," she objected.

"No, unless he was pressed for time, and had, shall we say, more urgent claims on his attention."

"Perhaps he came to visit his brother, not knowing he was away just now."

"I thought of that too. Where is he supposed to be just now?"

"Lord? Jimmy said he was up-state visiting Gottschalk, the millionaire who is backing the Aerial Mail Company."

Nobody spoke for a minute or two. At length my friend rose and pushed his chair up against the table.