“Cover your mouth,” Labiskwee cried suddenly. “And do not talk. I know what it is. Cover your mouth with your sleeve, thus, and do not talk.”

McCan fell first, and struggled wearily to his feet. And after that all fell repeatedly ere they reached the summit. Their wills exceeded their muscles, they knew not why, save that their bodies were oppressed by a numbness and heaviness of movement. From the crest, looking back, they saw the young men stumbling and falling on the upward climb.

“They will never get here,” Labiskwee said. “It is the white death. I know it, though I have never seen it. I have heard the old men talk. Soon will come a mist—unlike any mist or fog or frost-smoke you ever saw. Few have seen it and lived.”

McCan gasped and strangled.

“Keep your mouth covered,” Smoke commanded.

A pervasive flashing of light from all about them drew Smoke's eyes upward to the many suns. They were shimmering and veiling. The air was filled with microscopic fire-glints. The near peaks were being blotted out by the weird mist; the young men, resolutely struggling nearer, were being engulfed in it. McCan had sunk down, squatting, on his skees, his mouth and eyes covered by his arms.

“Come on, make a start,” Smoke ordered.

“I can't move,” McCan moaned.

His doubled body set up a swaying motion. Smoke went toward him slowly, scarcely able to will movement through the lethargy that weighed his flesh. He noted that his brain was clear. It was only the body that was afflicted.

“Let him be,” Labiskwee muttered harshly.