"Not that I know of, sir," he replied; "I did not hear it mentioned. But there's one thing that's been on my mind ever since you spoke to me about it to-night, and I must own that it puzzles me. I don't say it's right, of course; at the same time I've got a feeling that I'm not so very far wrong."

"What is it?" I enquired with interest, for Williams is a staid and circumspect individual, and is not in the habit of committing himself to a rash statement.

"It is just this, sir. When you sent me down to the Commander-in-Chief's residence with that note this morning, there was a man walking on the opposite side of the street who, to the best of my belief, was dressed just as this man was—that is to say, in a grey suit and a soft black hat."

"There is nothing very remarkable in that," I answered, a little disappointed. "You would probably find a dozen men dressed in a similar fashion in a short walk through the West End."

"I beg your pardon, sir, but I thought the coincidence worth mentioning," Williams replied in rather a crestfallen way. Then he bade me good-night and I retired to rest.

That night I slept like a top, and did not wake until Williams entered my room next morning. He informed me that the rain had passed off, that it was a fine day, and then busied himself with preparations for my toilet. These were barely accomplished, and I was in the act of commencing to shave, when the handle of my door turned, and Beckingdale, almost beside himself with excitement, entered the room.

"Great Heavens! Manderville," he cried in a voice which, had I not seen him, I should scarcely have recognised as his, "a most awful thing has happened. The Commander-in-Chief is missing."

"Missing?" I echoed, as if I scarcely understood the meaning of the word. "What do you mean?"

"I mean that his valet came to my man, Walters, about half an hour ago, and told him that he had knocked repeatedly on the door of his master's bedroom and could get no reply. My man came to me with the story, and when I had tried the door myself with the same result, I gave orders that it should be broken in. You may imagine our feelings when we discovered the room to be empty. The bed had been slept in, it is true, but there was not a trace of the man we wanted. What was more, the windows were shut. The police are now searching in all directions. What on earth shall we do? The inspection is at eleven o'clock, and it is most unlikely that we shall have the good fortune to find him before then."

Terrible as the situation was, I could not help recalling the fact that I had taken part in just such another interview on the morning of Woller's disappearance, when the Commander-in-Chief had asked my advice as to what should be done to find the missing man before that identical hour.