She was as yet only a novice, but already she had begun to have something of a similar exalted feeling toward other air pilots, so that it was not difficult for Suzanne to understand his meaning.

She told them not to worry about her—that she could easily make herself comfortable in the limited confine of her cockpit. True, it had no roof for shelter; but that bothered her not at all she told them, since she had camped many times in the open without even a canvas tent, or brush shanty; and besides, the stars were shining brightly overhead, showing they need fear nothing in the way of bad weather during the night.

Perk again assured himself that she was a mighty sensible and clear-headed little girl, and that if there were only more like her, perhaps—well, there couldn’t be, and besides he’d never have the chance to run across any of that class—it just wouldn’t be his good luck.

It was something to make Jack look back to that same evening for years to come. He as well as Perk had spent many a night in camp, when on fishing trips, or it might be hunting hikes up in the big woods; but no other camp could have such a royal setting as this one did.

The lofty walls running up as if to touch the star-decked sky, and as they knew full well that with those vivid colors making a nature painting beyond all imagination, that the loud song of the happy river flowing through the greatest gorge in all the wide world, that the blazing campfire, throwing up soaring sparks seemed like bright messengers of hope to Suzanne as she sat there drinking it all in. It filled to the brim the longings connected with the missing air mail pilot. Then, too, there was present that air of eternal mystery such as would be apt to brood over the spot where ages back the Zuni, and other Indian tribes, had lived in those quaint stone houses still to be found all through the hundred miles of the Colorado Canyon.

Perk knew very well that as a rule there was no danger from wild animals—that frequently parties made it a point to spend at least one night camping in the canyon, just to say they had gone through such a weird experience; and he had never heard of them being disturbed by man or beast.

Just the same, with this glorious chance opening up to him, Perk was persuaded to imagine himself constituted as the sole guardian of the fine girl aviatrix, into whose company they had so strangely fallen. Then, too he welcomed the opportunity to again handle that sub-machine-gun, which had been placed in his possession by the Government at the time he and Jack were running down the smuggling ring leaders on the Florida Coast, and a return of which had never thus far been demanded by the authorities.

Jack realized what was in the mind of his chum when he saw Perk looking over that powerful weapon with infinite joy; and while he did not imagine for a minute that there would arise any chance for requiring its services, still, since it afforded romantic Perk a good excuse for posing as a vigilant sentry, Jack held his peace, taking it out by giving his pal a few significant sly winks, to which the other deigned to take no notice whatsoever.

Neither of them knew what arrangements Suzanne had made for sleeping in the limited confines of her cockpit; but she bade them goodnight, and climbed aboard with the greatest nonchalance imaginable, as though this thing of camping out under all manner of inconveniences might be an old story with her, as indeed Jack thought was more than probable.

XVIII
THE VIGILANT GUARD