We had reached the end of his beat, and now I turned with him, and we sauntered slowly toward the Ferris Wheel. I felt that he was worthy of a grain of comfort, if I were able to give it, and I said:

'It was like this. The letter from Boston was written on the eve of a start for this place. The other letter, if posted, would have passed the lady for whom it was intended upon the road. This last letter, written supposedly by the owner of the bag, states that she, having left her New York home some time since, is now in the World's Fair City in company with an aunt, whom she describes as rustic, but delightful, and that because they are stopping very near the Fair she feels safe in coming alone on such days as her aunt elects to pass in the quiet of her own apartment; and the only clue to an address is the statement that she enters the grounds by the Fifty-seventh Street gate.'

'Ah!' It is a sigh of genuine relief. At last he has a clue, if a slight one. But what does he want of a clue? Having gotten thus far, I relate briefly my experience of this morning, omitting description and the name of Monsieur Voisin, whom I describe as a tall dark-haired gentleman, evidently a foreigner, and then I play my card.

I am here upon business of an important nature; my time is limited; I do not know the lady; and having committed the folly of holding back first because of the brunette, and last—well, because I had an especial reason for not coming under the notice of this strange man—in short, had I found the lady alone I should have returned her property; in the presence of a third party I did not wish to do so; and then I put my question.

He had said that he knew this young lady, and, being here day after day, he would be likely to see her again. She would be sure to revisit the Midway; and what could be more easy than for him to return her lost property, explaining as he chose? It would relieve me much; it would be to me a genuine favour.

The guard was silent for a time; then he paused in his measured walk and turned to face me.

'If I have not misunderstood,' he said slowly, 'you set out this morning for the purpose of restoring to the lady her lost property?'

'True.'

'And—do you mean to tell me that because of the presence of this brunette first, and then of the man, you gave up the idea?'

'Quite so.'