It was a sort of car that seemed to have a faculty for motion with an absolute lack of any accompanying sound whatsoever.

This was probably illusory; it must have been, internal combustion engines being what they are, tires being what they are, brakes and gears being what they are, even raspy street-surfacing being what it is. Yet the illusion outside the hotel entrance was a complete one. Just as there are silencers that, when affixed to automatic hand-weapons, deaden their reports, so it was as if this whole massive car body were encased in something of that sort. For, first, there was nothing out there, nothing in sight there. Then, as though the street-bed were water and this bulky black shape were a grotesque gondola, it came floating up out of the darkness from nowhere. And then suddenly, still with no sound whatsoever, there it was at a halt, in position.

It was like a ghost-car in every attribute but the visual one. In its trancelike approach and halt, in its lightlessness, in its enshrouded interior, which made it impossible to determine (at least without lowering one's head directly outside the windows
and peering in at nose-tip range) if it were even occupied at all, and if so by whom and by how many.

You could visualize it scuttling fleetly along some overshadowed country lane at dead of night, lightless, inscrutable, unidentifiable, to halt perhaps beside some inky grove of trees, linger there awhile undetected, then glide on again, its unaccountable errand accomplished without witness, without aftermath. A goblin-car that in an earlier age would have fed folklore and rural legend. Or, in the city, you could visualize it sliding stealthily along some warehouse-blacked back alley, curving and squirming in its terrible silence, then, as it neared the mouth and would have emerged, creeping to a stop and lying there in wait, unguessed in the gloom. Lying here in wait for long hours, like some huge metal-cased predatory animal, waiting to pounce on its prey.

Sudden, sharp yellow spurts of fangs, and then to whirl and slink back into anonymity the way it came, leaving the carcass of its prey huddled there and dead.

Who was there to know? Who was there to tell? ("The Number's Up")

Cornell Woolrich