They had got more than half-way up, when cries came pealing up the glen behind them. Still were they hidden from the eyes of the pursuers. Jutting points of rock and huge masses that lay loose in the bed of the ravine had hitherto concealed them. But for these, bullets and arrows would have already whistled about their ears, and perhaps put an end to their flight. The savages were near enough to send either gun-shot or shaft, and their voices, borne upward on the air, sounded as clear as if they were close at hand.

The fugitives, as already said, had reached more than halfway up the slope, and were beginning to congratulate themselves on the prospect of escape. They even thought of the course they should take on arriving at the summit-level, for they knew that there was an open plain above. All at once they were brought to a stop, though not by anything that obstructed their path. On the contrary, it only seemed easier; for there were now two ways open to them instead of one, the ravine at this point forking into two distinct branches. There was a choice of which to take, and it was this that caused them to make a stop, at the same time creating embarrassment.

The pause, however, was but for a brief space of time—only long enough to make a hasty reconnoissance. In the promise of an easy ascent there seemed but little difference between the two paths, and the guide soon came to a determination.

“It’s a toss up atween ’em,” he said; “but let’s take the one to the right. It looks a little the likest.”

Of course his fellow-fugitive did not dissent, and they struck into the right-hand ravine; but not until Walt Wilder had plucked the red kerchief from his head, and flung it as far as he could up the left one, where it was left lying in a conspicuous position among the rocks.

He did not say why he had thus strangely abandoned the remnant of his head-gear; but his companion, sufficiently experienced in the ways and wiles of prairie life, stood in no need of an explanation.

The track they had now taken was of comparatively easy ascent; and it was this, perhaps, that had tempted Wilder to take it. But like most things within the moral and physical world, its easiness proved a delusion. They had not gone twenty paces further up when the sloping chasm terminated. It debouched on a little platform, covered with large loose stones, and there rested after having fallen from the cliff above. But at a single glance they saw that this cliff could not be scaled.

They had entered into a trap, out of which there was no chance of escape or retreat without throwing themselves back upon the breasts of their pursuers.

The Indians were already ascending the main ravine. By their voices it could be told that they had reached the point where it divided; for there was a momentary suspension of their cries, as with the baying of hounds thrown suddenly off the scent.

It would not be for long. They would likely first follow up the chasm where the kerchief had been cast, but, should that also prove a cul-de-sac, they would return and try the other.