She came to the inner door, unlocked that, and walked into the dark passageway, her feet squelching on the unseen floor, wondering whether she was treading on frogs or toads or just water and slime.

(The convincing set - a staircase leading to an unseen upper floor, a banquette by the window and pea-green walls - was designed by David Korins.)

Then Langfey cried out, and fell heavily to the unseen floor, borne backward by the onset of a cold and tangible thing, resistless as the launching coils of an anaconda.

Inch by inch, The Shadow's feet slid cautiously forward over the unseen floor.

The magnificent state rooms were restored to their former glory, while the unseen upper floors and service areas are now internally modern offices.

Tiny sparks flickered around Rincewind as he eased himself over the unseen floor.

Brief flashes of light provided him with snapshot glimpses of stark, vertical walls that plunged toward an unseen floor.

Even from this height, which often gave visibility to trails unseen on the valley floors, nothing was visible that could have been made by a cattle herd.

With hands splayed out in front of himself, eyes uselessly staring, Dortmunder inched across the unseen floor into the unseeable black.

Beneath him, under all his limbs and his huge coiled tail, and about him on all sides stretching away across the unseen floors, lay countless piles of precious things, gold wrought and unwrought, gems and jewels, and silver red-stained in the ruddy light.