The floor was old, far older than the walls, though how she knew this Gil was not sure-older, she thought, than the city over her head, or any city of mankind. In the midst of that dark pavement, right before the lamplit steps, one single slab of the floor was new, hewn of pale gray granite, its surface rough against the worn, silken smoothness of the rest of the floor, though it, too, was covered with that agelong mantle of dust.

In the darkness above her a door creaked, and light wavered across the many arches. Gil slipped back into the shadow of a pillar, though she knew it was only a dream, and knew that people here could not see her because they did not exist. A woman, a servant by her dress, came padding down the steps with a basket on her arm, holding a lamp up above her head; at her heels lumbered a hunchbacked slave, peering around him at the darkness out of shadowed, wary eyes. The woman led the way unconcernedly down the Stair, across the smooth dark floor, turning aside to avoid walking on the odd granite slab, although her goal-a bin of dried apples-lay directly opposite the foot of the stairs, and the odd slab was in no way raised above the level of the rest of the floor. The hunchback made an even wider circuit, moving from pillar to pillar, woofing and clucking quietly to himself and never taking those sharp, fear-filled eyes from the pale stone.

The woman loaded her basket and handed it to the hunchback to carry. She started back toward the steps and paused, irresolute, clearly telling herself not to be a silly, superstitious goose, that there was no reason to be afraid, not of the darkness that pressed so close around her, and certainly not of six feet by twelve of pavement that was gray instead of black, granite instead of basalt. But in the end, she took the long way around, to avoid walking on that odd slab.