I explained to Mrs. Flemming that I had witnessed a nasty accident in the tube and that I was rather upset and would go to my room and lie down. The kind woman insisted on my having a cup of tea. After that I was left to my own devices, and I proceeded to carry out a plan I had formed coming home. I wanted to know what it was that had produced that curious feeling of unreality whilst I was watching the doctor examine the body. First I lay down on the floor in the attitude of the corpse, then I laid a bolster down in my stead, and proceeded to duplicate, so far as I could remember, every motion and gesture of the doctor. When I had finished I had got what I wanted. I sat back on my heels and frowned at the opposite walls.

There was a brief notice in the evening papers that a man had been killed in the tube, and a doubt was expressed whether it was suicide or accident. That seemed to me to make my duty clear, and when Mr. Flemming heard my story he quite agreed with me.