"Don't look—run!" he urged, when another brand fell in a fir near them and set the whole tree ablaze. The air around them was hot, like the breath of a furnace.

She did not answer him, but she let him lead her whither he would. And they came breathless to the rocky outcropping through which the pack trail wormed its way farther down the hill. There he let her stop, for he knew that they had passed around the upper edge of the fire, and were safe unless the wind changed. He helped her upon a high, flat-topped boulder that overlooked the balsam thicket and manzanita slope, and together they faced the debauchery of the flames.

Even in the few minutes since Jack had stopped on that rocky knoll the fire had swept far. It had crossed the Crystal Lake road and was now eating its way steadily up the timbered hillside beyond. The manzanita slope where the girl had sat and signalled with her mirror was all charred and stripped bare of live growth, and the flames were licking up the edges beyond.

Jack touched her arm and pointed to the place. "You said it couldn't travel very fast," he reminded her. "Look down there where you sat fooling with the little mirror."

Marion looked and turned white. "Oh!" she cried. "It wasn't anywhere near when I started up the road. Oh, do you suppose it has burned down as far as the cabin? Because there's Kate—can't we go and see?"

"We can't, and when I left the lookout the fire was away up this side of Toll-Gate, and not spreading down that way. Wind's strong. Come on—I expect I better beat it back up there. They might phone."

"But I must hunt Kate up! Why, she was all alone there, taking a nap in the hammock! If it should—"

"It won't," Jack reiterated positively. "I ought to know, oughtn't I? It's my business to watch fires and see how they're acting, isn't it?" He saw her still determined, and tried another argument. "Listen here. It isn't far up to the station. We'll go up there, and I'll phone down to the office to have the firemen stop and see if she's all right. They'll have to come right by there, to get at the fire. And you can't cross that burning strip now—not on a bet, you couldn't. And if you could," he added determinedly, "I wouldn't let you try it. Come on—we'll go up and do that little thing, telephone to the office and have them look after Kate."

Marion, to his great relief, yielded to the point of facing up hill with him and taking a step or two. "But you don't know Kate," she demurred, turning her face again toward the welter of burning timber. "She'll be worried to death about me, and it would be just like her to start right out to hunt me up. I've simply got to get back and let her know I'm all right."

Jack threw back his head and laughed aloud—think how long it had been since he really had laughed! "What's the matter with phoning that you're all right? I guess the wire will stand that extra sentence, maybe—and you can phone in yourself, if you want to convince them ab-so-lutely. What?"