and turned to the policemen. ‘I require just one thing more,’ I said, ‘I want a small weapon suitable for the pocket which will exterminate any man or any million men who try at any time to take my life.’ Without a word the Sergeant brought me a small black article like a torch. ‘There is an influence in that,’ he said, ‘that will change any man or men into grey powder at once if you point it and press the knob and if you don’t like grey powder you can have purple powder or yellow powder or any other shade of powder if you tell me now and confide your favourite colour.
