“Certainly,” was the ready reply. “You remember my friend Shopland, Sir Timothy? It was Mr. Shopland who arrested young Fairfax that night at Soto's.”

“I remember him perfectly,” Sir Timothy declared. “I fancied, directly I entered, that your face was familiar,” he added, turning to Shopland. “I am rather ashamed of myself about that night. My little outburst must have sounded almost ridiculous to you two. To tell you the truth, I quite failed at that time to give Mr. Ledsam credit for gifts which I have since discovered him to possess.”

“Mr. Shopland and I are now discussing another matter,” Francis went on, pushing a box of cigarettes towards Sir Timothy, who was leaning against the table in an easy attitude. “Don't go, Shopland, for a minute. We were consulting together about the disappearance of a young man, Reggie Wilmore, the brother of a friend of mine—Andrew Wilmore, the novelist.”

“Disappearance?” Sir Timothy repeated, as he lit a cigarette. “That is rather a vague term.”

“The young man has been missing from home for over a week,” Francis said, “and left no trace whatever of his whereabouts. He was not in financial trouble, he does not seem to have been entangled with any young woman, he had not quarrelled with his people, and he seems to have been on the best of terms with the principal at the house of business where he was employed. His disappearance, therefore, is, to say the least of it, mysterious.”

Sir Timothy assented gravely.

“The lack of motive to which you allude,” he pointed out, “makes the case interesting. Still, one must remember that London is certainly the city of modern mysteries. If a new 'Arabian Nights' were written, it might well be about London. I dare say Mr. Shopland will agree with me,” he continued, turning courteously towards the detective, “that disappearances of this sort are not nearly so uncommon as the uninitiated would believe. For one that is reported in the papers, there are half-a-dozen which are not. Your late Chief Commissioner, by-the-bye,” he added meditatively, “once a very intimate friend of mine, was my informant.”

“Where do you suppose they disappear to?” Francis enquired.

“Who can tell?” was the speculative reply. “For an adventurous youth there are a thousand doors which lead to romance. Besides, the lives of none of us are quite so simple as they seem. Even youth has its secret chapters. This young man, for instance, might be on his way to Australia, happy in the knowledge that he has escaped from some murky chapter of life which will now never be known. He may write to his friends, giving them a hint. The whole thing will blow over.”

“There may be cases such as you suggest, Sir Timothy,” the detective said quietly. “Our investigations, so far as regards the young man in question, however, do not point that way.”