As the reflected light from the mouth of the gullet faded, the darkness thickened.

They ate in silence as the darkness thickened and the stars appeared.

When the night came down as if darkness thickened the air, they did not stop.

And the darkness about it thickened, blackened, drew together.

But she felt its power as the darkness thickened and grew even more chill.

And yet her darkness thickened along the slow expansion of her range.

Then it redoubled, and the darkness thickened about the spark.

But, as the darkness thickened, there were no more sounds from below which Simon could interpret as attack.

She lay perfectly still, eyes wide open, watching the darkness thicken and congeal around her.

At the moment when its pace would have brought it to the trees, she imagined she saw the darkness thicken beyond all of them.