“Strange,” he muttered. “It can't be that those fires have spread. There was no chance for them to spread. I—don't—understand it!”

He sat at the window and stared out through the darkness. There was little wind as yet; it was a fact, however, that the firelight flickered on the low-hung clouds with increasing radiance.

“Am I mad?” demanded the young farmer, suddenly leaping up and drawing on his garments again. “That fire is spreading.”

He dressed fully, and ran softly down the stairs and left the house. When he came out in the clear the glow had not receded. There was a fire down the hillside, and it seemed increasing every moment.

He remembered the enemy in the dark, and without stopping to rouse the household, ran on toward the woods, his heart beating heavily in his bosom.

Slipping, falling at times, panting heavily because of the rough ground, Hiram came at last through the more open timber to the brink of that steep descent, at the bottom of which lay the smoky river-bottom.

And indeed, the whole of the lowland seemed filled with stifling clouds of smoke. Yet, from a dozen places along the foot of the hill, yellow flames were starting up, kindling higher, and devouring as fast as might be the leaves and tinder left from the wrack of winter.

The nearest bonfire had been a hundred yards from the foot of this hill. His care, Hiram knew, had left no chance of the dull coals in any of the twenty heaps spreading to the verge of the grove.

Man's hand had done this. An enemy, waiting and watching until they had left the field, had stolen down, gathered burning brands, and spread them along the bottom of the hill, where the increasing wind might scatter the fire until the whole grove was in a blaze.

Not only was Mrs. Atterson's timber in danger, but Darrell's tract and that lying beyond would be overwhelmed by the flames if they were allowed to spread.