Their outlines were already hidden when he entered them.

To a sense less keen, a courage less desperate, and a purpose less unaltered than Low's, the wood would have been impenetrable.

The central fire was still confined to the lofty tree-tops, but the downward rush of wind from time to time drove the smoke into the aisles in blinding and suffocating volumes.

To simulate the creeping animals, and fall to the ground on hands and knees, feel his way through the underbrush when the smoke was densest, or take advantage of its momentary lifting, and without uncertainty, mistake, or hesitation glide from tree to tree in one undeviating course, was possible only to an experienced woodsman.

To keep his reason and insight so clear as to be able in the midst of this bewildering confusion to shape that course so as to intersect the wild and unknown tract of an inexperienced, frightened wanderer belonged to Low, and to Low alone.