Neale listened while he was watching Allie’s parted lips and speaking eyes. A low, whining wind swept through the trees and over the roof of the cabin.

“Thet wind says snow,” declared the trapper.

Neale went outside. The wind struck him cold and keen, with a sharp edge to it. The stars showed pale and dim through hazy atmosphere. Assuredly there was a storm brewing. Neale returned to the fire, shivering and holding his palms to the heat.

“Cold, you bet, with the wind rising,” he said. “But, Slingerland, suppose it does snow. Can’t we go, anyhow?”

“It ain’t likely. You see, it snows up hyar. Mebbe we’ll be snowed in fer a spell. An’ thet valley is open down thar. In deep snow what could we find? We’ll wait an’ see.”

On the morrow a storm raged and all was dim through a ghostly, whirling pall. The season of drifting snow had come, and Neale’s winter work had begun.

Five miles by short cut over the ridges curved the long survey over which Neale must keep watch; and the going and coming were Neale’s hardest toil. It was laborsome to trudge up and down in soft snow.

That first snow of winter, however, did not last long, except in the sheltered places. Fortunately for Neale, almost all of his section of the survey ran over open ground. But this fact augured seriously for his task when the dry and powdery snow of midwinter began to fall and sweep before the wind and drift over the lee side of the ridge.

During the first week of tramping he thoroughly learned the lay of the land, the topography of his particular stretch of Sherman Pass. And one day, taking an early start from camp, he set forth to make his first call upon his nearest associate in this work, the engineer Service. Once high up on the pass he found the snow had not all melted, and still higher it lay white and unbroken as far as he could see. The air was keener up there. Neale gathered that Service would have a colder job than his own, if it was not so long and hard.

He found Service at home in his dugout, warm and comfortable and in excellent spirits. They compared notes, and even in this early work they decided it would be a wise plan for the engineering staff to study the problem of drifting snow.