Chapter 17

It shows how dulled we had become to unfamiliar wonder, or how concentrated our minds had been upon the new problem which had disturbed us, that we had not observed these shifting lights when first our eyes must have beheld them. Now, as we gazed, the left-hand side of the leftward passage glowed with a sudden redness not twenty yards away. The light spread, and spread, along the glassy surface of the wall, until it had almost reached us. It rose up till it neared the gloom of the distant roof, of which the darkn…