For, do you see, Mr.Hugh, there's just one man hereabouts that can give us some light on this affair straightaway--if he will--and that the lodger you were telling me of.

And I must get in and see the superintendent, and we must get speech with this Mr.Gilverthwaite of yours--for, if he knows no more, he'll know who yon man is!" I made no answer to that.

I had no certain answer to make.

I was already wondering about a lot of conjectures.

Would Mr.Gilverthwaite know who the man was?
Was he the man I ought to have met?
Or had that man been there, witnessed the murder, and gone away, frightened to stop where the murder had been done?
Or--yet again--was this some man who had come upon Mr.Gilverthwaite's correspondent, and, for some reason, been murdered by him?
It was, however, all beyond me just then, and presently the sergeant and I were on our machines and making for Berwick.