Presently there came a dragging, bumping sound, then a crash of a log dropped upon the fire.
A cloud of sparks shot up, and many pattered down to hiss upon the damp ground.

Smoke again curled upward along the great, seamed tree-trunk, and flames sputtered and crackled.
Helen listened again for the roar of wind.

It seemed to come on a breath of air that fanned her cheek and softly blew Bo's curls, and it was stronger.

But it died out presently, only to come again, and still stronger.

Helen realized then that the sound was that of an approaching storm.