"That is the funny part of it. I, too, know nothing of Louise O'Donnel--no more than you do."

"It seems odd that you should take so great an interest in a person of whom you know nothing."

"Does not the same remark apply to you?"

"Not at all. I heard the name mentioned last night, casually, for the first time. It seems to have lingered in my memory, and I appear to have scribbled it, in a fit of abstraction, and, certainly, quite unconsciously."

Taking out a cigar, Mr. Townsend commenced to light it with an appearance of indifference which was, perhaps, a trifle too pronounced.

"Very odd, very odd indeed, that both you and I should seem to evince so much interest in a person whose name we have merely heard casually mentioned. It occurred to me that, when you found the name confronting you, you appeared--shall I say startled?--as if it or its owner was connected in your mind with disagreeable associations. Perhaps, however, that was simply a consequence of the general ill-health from which you say you suffer. And, I must say myself, that you don't look well. I hope that, next time I see you, you will be better."

He carried it off with an air. But I did not believe him. I felt persuaded that he knew more of Louise O'Donnel than he chose to confess. What he knew was more than I could say. But I felt equally persuaded that he wished that he knew less. He went off without saying anything further about the little deal which he had said that he wanted me to do for him. It had, apparently, escaped his recollection. I, too, had forgotten it till after he had gone. I had never felt less inclined for business in my life.

Scarcely had I returned to the office than the door opened, and, wholly unannounced, the stranger of the night before came in. He might, almost, have been waiting and watching for my return.

CHAPTER IV.

[BLACKMAIL.]