Nort stopped, his brain dully comprehending what Snake meant. Then the others in the wild, frightened retreat sensed what the words were intended to convey and, one after another, they gathered there in comparative safety with Snake, Nort and Dick.

"Whew!" gasped Billee Dobb whose age was telling on him, not only in the rapid, forced retreat, but in the effect of the gas. "That was tough! But what makes you think we'll be safe here, Snake?"

"On account of the wind blowing the gas away from us. Look, there it floats to the east. We're safe here. I didn't get nearly gassed in the war for nothing. We're safe here till the wind shifts and it won't do that right away."

"What about the horses?" gasped Dick, taking deep breaths to rid himself of the gas already breathed.

"They're all right—they're up wind, too!" shouted Yellin' Kid, whose lungs did not seem to have suffered much.

This was true enough. The ponies, with the guard of cowboys, were to the west of the gorge entrance and, as Snake had been quick to observe, the strange, white mist which had so mysteriously floated out of the cave toward the avengers, was drifting, now, out of the mouth of the defile and off to the east.

"If any of the cattle get in the path of that they'll be killed!" exclaimed Dick, noting how the mist clung to the ground and rolled along as fog sometimes does when the clouds are low.

"The bunch isn't down there," said Billee.

"And I don't know as that gas is so very deadly after all," stated Snake, breathing deep after a few cautious inhalations to make sure the air was clear.

"Then what'd you run for?" Yellin' Kid wanted to know.