 Partly he knew it from the faces of the Malacandrians as their lord passed them; partly he sawhe could not deny that he sawOyarsa himself. He never could say what it was like. The merest whisper of lightno, less than that, the smallest diminution of shadowwas travelling along the uneven surface of the ground-weed; or rather some difference in the look of the ground, too slight to be named in the language of the five senses, moved slowly towards him.