Edmond Hamilton,
The life-masters
(1929)
“ Gray powder in the coating of which behind them lay the dark, twisted bodies of Munson and the others! Gray powder that lay, he knew, over all earth where the protoplasm masses had been but a moment before, that lay in city and on land, the sole remaining evidence of the gigantic masses which the great condenser with its concentrated cosmic rays had built up over all earth and which with its concentrated radio-active rays it had in the same way destroyed! Gray powder, that alone remained of the greatest and most terrible menace ever to challenge the existence of man and the world of man! ”
