"I was not needed for anything but to supply your address, sir; but I was able to do that, so between us all we have contrived to return your pocketbook to you as good as before it left your possession." As he spoke Mr. Tolman drew forth the missing bill book and held it toward its owner. "That looks pretty good to me!" Mr. Ackerman exclaimed, as he took the article from Mr. Tolman's outstretched hand and regarded it reflectively. "I don't know when I have ever done anything so careless and stupid. You see I had got part way to the bank before I remembered that I had left my glasses, on which I am absolutely dependent, at home. Therefore, there being no taxi in sight, I hailed a passing bus and climbed up beside this youngster. How the bill book happened to slip out of my pocket I cannot explain. It seemed to me it would be safer to have the securities upon my person than in a bag that might be snatched from me; but apparently my logic was at fault. I was, however, so certain of my wisdom that I never thought to question it until I had reached the sidewalk and the bus had gone. "Your boy, Mr. Tolman, confided while we rode along this morning that he was visiting in New York for a few days; but of course I did not ask his name or address and so when I wanted his help in tracing the missing pocketbook I had no way of locating him beyond assuming that he must be staying at one of the hotels. Therefore when the omnibus company could furnish no clue, I got into touch with an agency whose business it is to hunt people up. If the pocketbook had been dropped on the bus I felt sure your boy, who was almost the only other person on top of the coach, would know about it; if, on the other hand, it had been dropped in the street, my problem would be a different one. In either case the sooner I knew my course of action the better. I hope you will believe, Mr. Tolman, that when I called in the aid of detectives I had no suspicions against your son's honesty." Mr. Tolman waved the final remark aside good-humoredly. "We have not taken the affair as a personal matter at all," he declared. "We fully appreciate your difficulty in finding Stephen, for he was also up against the problem of finding you. New York is a rather large city anyway, and for two people who do not even know one another's names to get together is like hunting a needle in a haystack. Our only recourse to discovering the owner of the pocketbook would be through the advertising columns of the papers and that is the method we should have followed had not Donovan appeared and saved us the trouble." He exchanged a smile with the detective.