Next morning, when I was in the middle of my breakfast, a note was handed me from the Commander-in-Chief. It ran as follows:—

"Dear Manderville,—Could you spare me ten minutes as soon as possible after your receipt of this? I would call upon you myself, but for various reasons, which I will explain to you when I see you, I am unable to leave the house until I go down to Pall Mall."

Here followed an assurance that the writer was very truly mine, his signature, and a postscript to the effect that the bearer would wait for an answer. I scribbled a hasty reply, saying that I would come round to Bruton Street at once, and as soon as I had made my toilet, called a cab and set off. On my arrival there I was shown direct to the Commander-in-Chief's study, where I found him awaiting my coming with considerable impatience.

"It is very good of you to come so promptly," he said. "To tell you the truth, I am very uneasy, and as we are both old friends of the man, I thought I would consult you in an ex-officio capacity, before going to the Secretary of State for War."

"I am to gather from this, I suppose, that up to the present, you have not heard anything of Woller," I answered, with a little sinking of the heart, for I made sure that morning would dispel the mystery that enveloped his behaviour.

"You have guessed correctly," he said. "I have caused the most careful enquiries to be made, and have learnt that he left Windsor by the 3.25 train, reached Paddington at 4.2, entered a cab there, and has not since been heard of. Unfortunately, as nobody seems to have been aware of his identity, the number of the cab was not taken, and, so far as we are able to ascertain, none of the drivers in the station-yard at the time appear to be able to recollect whose vehicle it was that he employed. If you reflect that it has been arranged that he shall leave London for Southampton at eleven o'clock this morning, and that an enormous crowd will be at the station to see him off, it will at once become evident to you that his non-appearance will be far from making a good impression upon the public mind."

"But what has become of him? He can't have vanished into space."

"There are many other ways in which he might disappear," said my companion gloomily.

"Surely you don't suppose he has been the victim of foul play?"