At dawn I found the fog had lifted, therefore, after looking in at the garage, I called upon Kirk, resolved to pretend ignorance of his visit to the house off the Tottenham Court Road. But again I was disappointed, for he had been absent all night. His sister was ignorant of his whereabouts, but, as she explained, his movements were ever erratic.

This caused me to make another visit to the house, which, in the light of day, I found to be in Foley Street, an even more squalid neighbourhood than I had believed.

At the corner of Cleveland Street was the laundry, the windows of which were painted grey so that the passer-by could not peer within. The street seemed to be the play-ground of numberless dirty children, while the houses, all of which were let in tenements, were smoke-grimed and dismal.

At some of the windows the cheap lace curtains hung limp and yellow, and at others the windows had been white-washed to prevent people looking in. The neighbourhood was one that had sadly decayed, for even the public-house a little way up the street was closed and to let.

I stood outside the easily recognised surgery in order to take my bearings, and quickly discovered the three or four houses from one of which had come that cry in the night.

Yet which house it was, I knew not. Therefore what could I do? To remain there might attract Kirk’s attention if he were within. Hence I was afraid to loiter, so I passed on into Langham Street, and thus out into Portland Place.

I had become obsessed by the mystery of it all. I returned to Chiswick, and tried to give my mind to the details of my business, but all without avail. I saw that Pelham, my manager, was surprised at my apparent absent-mindedness. I knew it was incumbent upon me to go to the police-station, which was only a few hundred yards from me on the opposite side of the road, and tell the inspector on duty the whole story. Yet somehow the affair, with all its mysterious features, had fascinated me, and Kershaw Kirk most of all. The information was mine, and it was for me to solve this remarkable enigma.

Kirk’s absence from home, and his failure to communicate with me, showed that either he mistrusted me, or that he was purposely misleading me for the attainment of his own ends.

He had sought my friendship and assistance, and yet next day he had abandoned me in doubt and ignorance.

I managed to get through the day at the garage, and eagerly bought the evening paper, anxious to see whether the tragedy had become public property; but as yet it was unknown. I dined at home, and I suppose my manner was so preoccupied that Mabel, my wife, asked: