I focussed my attention upon the twenty-foot-wide square that was the Keeper's foot.

Its surface was jewel smooth, hyaline--yet beneath it was a suggestion of granulation, of close-packed, innumerable, microscopic crystals.
Within these grains whose existence was more sensed than seen glowed dull red light, smoky and sullen.

At each end of the square, close to the bottom, was a diamond-shaped lozenge, cabochon, perhaps a yard in width.

These were dim yellow, translucent, with no suggestion of the underlying crystallization.

Sense organs I set them down to be--similar to the great ovals within the Emperor's golden zone.
My gaze traveled up to the transverse arms.