"You were following Bronson at eight o'clock. Was that when it happened?"
"Something of the sort. When I left you at the door of the restaurant, I turned and almost ran into a plain clothes man from the central office. I know him pretty well; once or twice he has taken me with him on interesting bits of work. He knows my hobby.
"You know him, too, probably. It was the man Arnold, the detective whom the state's attorney has had watching Bronson."
Johnson being otherwise occupied, I had asked for Arnold myself.
I nodded.
"Well, he stopped me at once; said he'd been on the fellow's tracks since early morning and had had no time for luncheon. Bronson, it seems, isn't eating much these days. I at once jotted down the fact, because it argued that he was being bothered by the man with the notes."
"It might point to other things," I suggested. "Indigestion, you know."
Hotchkiss ignored me. "Well, Arnold had some reason for thinking that Bronson would
