It seemed to Ned that everything east of the Kootenai river must be on fire. Now and then, drawn by some wayward current of air, the thick smoke lifted in the little cup-like valley, and the cowering wild animals could be seen, huddling together in the terror of the time, deer no longer afraid of lion or bear, lion and bear forgetting to mark their prey.
Finally, anxious to know the extent of the disaster, so far as it might be judged by a personal view of the country west of the valley, Ned left the boys in charge of the aeroplane and crept toward the rim of the cup. Jimmie saw him leaving and started on after him, but Jack drew him back.
“Let him go alone, for once,” Jack said, “he’s only going to find out where this menagerie of wild animals comes from.”
Jimmie settled sullenly back by Jack’s side, resolved to break away at the first opportunity and follow the patrol leader.
When Ned gained the elevation he sought, the procession of wild animals had come to an end, although birds, frightened and singed by the flames, were calling from the sky. Everywhere rolled billows of smoke, blown on ahead of the line of fire and in a measure concealing its fatal advance.
Now and then, however, a spurt of hot wind came over the burned waste and lifted the curtain for an instant. Then the boy saw that the fire was crawling up the slope, not racing as it had earlier in the day, but moving steadily, sweeping the earth of the undergrowth, but leaving many large trees.
The danger was decreasing there, but lower down the flames were consuming everything in their path, eating down great trees and leaving fiery, straggling columns to consume them to ashes. Ned thanked his stars that the growths on the slope were not dense enough to foster such a blaze as that which burned below.
It has been stated by those who know that ordinary care would have prevented most of the devastating forest fires which have raged in the Northwest. Experts claim that forests should be burned over under careful supervision, every three or four years. This, they say, will prevent the accumulation of inflammable material such as caused the terrible losses of August, 1910.
Ned saw at once the expediency of the proposed remedy. He knew that resinous spines, steeped in the drippings of pitch and turp from the overhead branches, had lain many inches deep around the trunks of the trees, beneath fallen boles, and at the roots of the undergrowth. This accumulation made the extinguishing of forest fires impossible. He understood that the government had virtually provided for what followed by permitting this material to accumulate year after year.
It is declared by foresters and others who strove to check that wall of fire that it advanced at the rate of a mile a minute between the Kootenai river and the foothills. Below where Ned lay was a burning furnace. It was so hot that he dare not lift his face a second time, and so he moved back to the aeroplane, which he found still safe from the flames, and the wild creatures crouching in the center of the valley.