The gray-gloved fingers of that hand--forefinger in evidence--described an airy semicircle, a vaguely twirling motion at her smooth, smooth, lip-corner, with the thumb as pivot! But abruptly the whole hand spread itself out to the sunshine, in bland elegance, as “Old Perfect” caught the girlish glance darted, sidelong, towards her, and then dropped to her side.

Really, it was a glance as preoccupied as the gesture itself, for two-thirds of Sara Davenport’s mind was at the moment a storm-zone, swept by concern for her brother and anxiety for the gassed victim who was himself to blame for his misery--and that clouded the other third.

Any point that the movement might have had was blunted against the broad thrill of an arrival from the base hospital of a stretcher for him, seeing that he must not be tucked away in an ambulance as yet, his only hope of recovery being fresh air and the gas-allaying power of Brother Gust.

But, although the troubled eye of the conscious self may be dim and clouded, there is in each of us, young or old, another self forever on the alert--even when he seems to be dreaming. Men name him the Subconscious.

A shy fellow and retiring, he is, nevertheless, an expert photographer, forever snap-shotting things which concern us, although he has a trick of hiding away the films--sometimes for long--until some shock compels him to produce them.

Perhaps he took such a snap-shot now of the elegant young woman whose smile was a snow-blink--like an Arctic reflection--upon the skirts of the yellow sulphur-cloud.

Perhaps, some day, he might, under unusual spur, produce the negative--the indelible negative for a vivid picture of this whole harrowing scene, when, on the brown outskirts of camp:

“The gas came down and bowled the Blighter out.”

CHAPTER III

THE CAMP AT TWILIGHT