He stared into the black orifice of the gun, and gasped.

I found myself charging towards the pitiless black orifices of a sawn-off shotgun.

The black orifice mouthed, "Do it!"

For a moment he thought he would go spinning straight down the black orifice of the drain.

What he saw was the barrel of a gun, the black orifice of its opening staring him in the eyes.

It was well that he did so, for just before her lay the black orifice of the well-hole, which, of course, she could not see with the silk curtain round her head.

Kennon moved carefully, recording every step as he entered the black orifice in the spaceship's side.

Now it gaped at him, menacing as a massive bullet hole, the black orifice filling his vision as he approached.

The only ornament to their shaggy heads was a mouth, wet black orifice filled with flat black teeth.

The black orifice flashed blue arcs of flame.