The coincidence was rather startling. Could it be possible that the man was deliberately following me? I resolved to test that as promptly as possible. I rang the bell and got off at the next stop. The man did not get off. I withdrew into the shadow of a shop doorway and watched. He alighted at the next stop and walked back in my direction.

The case was clear enough. I was being followed. I had crowed too soon. My victory over Guy Pagett took on another aspect. I hailed the next tram and, as I expected, my shadower also got on. I gave myself up to some very serious thinking.