Jackson ran to help him, piling his gatherings all on one heap.
"Make three piles!" Jimmie cried. "I want three fires! Three bright fires! Make three heaps!"
The three heaps grew fast. They were not arranged in a row on a level, but mounted one above another on the slope. Jimmies idea was to so place the fires one above the other, some thing like notches cut in a tree trunk.
The reason for this is apparent. Three fires in a line facing the point signaled to signal "Good News." Three notches cut in a tree trunk, one above another, mean "Important Warning!" Now the question was, would Ned understand that the fires represented warning notches, one above the other, and keep away until some safe plan for landing could be arranged?
If he accepted the signal as "Good News" signs, he would drop down to death. If he read them as Jimmie intended he should, he would sail away and wait for a more favorable opportunity.
When the three fires were going the Indian guards gathered about in order to warm themselves. Jimmie and Jackson hovered near them, too, but they never shifted their eyes from the light in the sky.
The Nelson hovered over the elevation to the east for a second, and then, much to the amazement of the lad, whirled about and shot downward, out of sight. The guards watched the light as long as it showed and then turned to the fires again.
Daylight came swiftly, and a finger of sunlight lay on the crest of the mountains when the' machine was in the air again. It was, perhaps, three miles away, across deep and dangerous canyons which it would require hours of the hardest kind of traveling to cross on foot.
Sailing low, almost touching minor elevations at times, the great airship came on, straight to the spot where the boys stood—where the Indians awaited them with guns in their hands!
In a moment Jimmie saw why this course was being taken. Unless the rascals in the twin valleys had seen the light when it first appeared they would not see it at all, for the bulk of the mountain shut off their view of the rough country over which Ned was traveling.