“It’s true, as ye say, boy,” responded the trapper; “yis, we sartinly did as ye say, though few be the men that know the waters that would believe it.”

“Why, then,” exclaimed the young man, “can’t we do it again?”

“The smoke, boy, the smoke,” was the answer.  “The smoke will be there ahead of us.  And who can run a stretch of water like the one ahead yender, with his eyes blinded?  No, boy, we must git there ahead of the fire, for we can’t run the rapids in the smoke.  Here,” he added, “ye be pullin’ a murderin’ stroke, and it’s best that I spell ye.  Down with ye, pups, down with ye, and lie still as a frozen otter while the boy comes over ye.”

With the celerity of long practice in boating, the two men changed places, and with such quickness was the change in position effected, that the onrushing shell scarcely lessened its headway.  The trapper seized the oars on the instant, while Herbert supported him with equal swiftness with the paddle and the light craft raced along like a feather blown by the gale.

For several moments the trapper, who, by the change in his position was brought face to face with the pursuing fire, said not a word.  His stroke was long and sweeping and pulled with an energy which only perfect skill and tremendous strength can put into action.  He looked at the rolling flames with a face undisturbed in its calmness and with eyes that noted knowingly every sign of its progress.

“The fire is a hot un,” he said at length, “and it runs three feet to our two.  We may git there ahead of it, for there isn’t more than a mile furder to go; but—­Lord!” exclaimed the trapper, “how it roars! and it makes its own wind as it comes on.  Don’t break yer paddle shaft, boy; but the shaft is a good un and ye may put all the strength into it that ye think it will stand.”

The spectacle on which the trapper was gazing was, indeed, a terrible one; and the peril of the two men was getting to be extreme.  The valley, through the centre of which the river ran, was perhaps a mile in width, at which distance a range of lofty hills on either side walled it in.  Down this enclosed stretch the fire was being driven by a wind which sent the blazing evidences of its approach in advance of its terrible progress.  The spectacle was indescribable.  The dreadful line of flame moved onward like a line of battle, when it moves at a charge against a flying enemy.  The hungry flames ate up the woods as a monster might eat food when starving.  Grasses, shrubs, bushes, thickets of undergrowth and the great trees, which stood in groves over the level plain on either side of the stream, disappeared at its touch as if swallowed up.  The evergreens crackled and flamed fiery hot.  The smoke eddied up in rushing volumes.  Overhead, and far in advance of the on-rolling line of fire, the air was darkened with black cinders, amid whose sombre masses fiery sparks and blazing brands shone and flashed like falling stars.