Larger context for LACK in Corpus USbrown_UKbncw/US_brown.txt
Thus, stealthily they advanced upstream; then they turned to the right, climbed the embankment, and walked into the valley again.
There was no cover here, only grass sighing against pant-legs.
And with each sigh, like a whip in the hand of an expert, the grass stripped something from Warren.
The gentle whir of each footstep left him more naked than before, until he felt his unprotected flesh tremble, chilled by each new sound.
The shapes of the men ahead of him lacked solidity, as if the whip had stripped them of their very flesh.
The dark forms moved like mourners on some nocturnal pilgrimage, their dirge unsung for want of vocal chords.
The warped, broken trees in the valley assumed wraith-like shapes.
Clumps of brush that they passed were so many enchained demons straining in anger to tear and gnaw on his bones.
Looming over all, Papa-san leered down at him, threatening a hundred hidden malevolencies.
Off in the distance a searchlight flashed on, its beam slashing the sky.
The sharp ray was absorbed by a cloud, then reflected to the earth in a softer, diffused radiance.
Somewhere over there another patrol had need of light.
Warren thought of all the men out that night who, like himself, had left their protective ridge and- fear working at their guts- picked their way into the area beyond.