Billy dropped his hand. It was Brokaw's hand that fell on his arm now.

"I can't do that," he said. "In ten years I ain't run out the white flag once. It's something that ain't known in the service. There ain't a coward in it, or a man who's afraid to die. But I'll play you square. I'll wait until we're both on our feet, again, and then I'll give you twenty-four hours the start of me."

Billy was smiling now. His hand reached out. Brokaw's met it, and the two joined in a grip that their numb fingers scarcely felt.

"Do you know," said Billy softly, "there's been somethin' runnin' in my head ever since we left the burning cabin. It's something my mother taught me: 'Do unto others as you'd have others do unto you.' I'm a d—— fool, ain't I? But I'm goin' to try the experiment, Brokaw, an' see what comes of it. I could drop in a snowdrift an' let you go on—to die. Then I could save myself. But I'm going to take your word—an' do the other thing. I'VE GOT A MATCH."

"A MATCH!"

"Just one. I remember dropping it in my pants pocket yesterday when I was out on the trail. It's in THIS pocket. Your hand is in better shape than mine. Get it."

Life had leaped into Brokaw's face. He thrust his hand into Billy's pocket, staring at him as he fumbled, as if fearing that he had lied. When he drew his hand out the match was between his fingers.

"Ah!" he whispered excitedly.

"Don't get nervous," warned Billy. "It's the only one."

Brokaw's eyes were searching the low timber along the shore. "There's a birch tree," he cried. "Hold it—while I gather a pile of bark!"