"Everything is different in the dark," said a third voice, that of the man who called himself a magician. It was a very musical voice, and rather in contrast with his sinister and swarthy visage, which was now invisible. "Perhaps you don't know how terrible a truth that is. All you see are pictures made by the sun, faces and furniture and flowers and trees. The things themselves may be quite strange to you. Something else may be standing now where you saw a table or a chair. The face of your friend may be quite different in the dark."
Love this passage, Chesterton and his chilling imagery..
