He was to wait there until I emerged from my hotel, himself remaining as far as possible out of sight.

On this occasion I had planned my route deliberately.

I made my way in the first place along the Strand as far as Trafalgar Square, down Cockspur Street by way of the Haymarket to Regent Street, then on by Langham Place to that vast network of streets that lies between Oxford Street and the Euston Road.
I had some time before this found out that I was being followed again.
The two men who had dodged my steps on the previous night were doing so again, though the reason for their action was no more apparent.

However, I had laid my plans most carefully, and hoped, if all went well, to be able to satisfy myself upon this point.

I had plenty of enemies, I knew, as a man of my profession must of necessity have, but I could not think of one who would pry upon my movements like this.