John Buchan,
The Watcher by the Threshold — The Watcher by the Threshold
(1918)
“ I have no nerves and little imagination, but in a flash I seemed to realise something of that awful featureless face, crouching ever at a man's hand, till darkness and loneliness comes and it rises to its mastery. I shivered as I looked at the man in the chair before me. Those dull eyes of his were looking upon things I could not see, and I saw their terror. I realised that it was grim earnest for him. Nonsense or no, some devilish fancy had usurped the place of sanity, and he was being slowly broken upon the wheel. ”
