A topographical map of that portion of the Saguache known as the Elk Mountain Range—the spur which forms the watershed between the Gunnison and the Grand—will include a primeval valley gashing the range southeastward from Tourtelotte on the Ashcroft trail, and heading fifteen miles farther wildernessward in a windswept pass across the summit of the watershed. Its watercourse, a tumbling torrent fed by the melting snows in the higher gulches, is a tributary of the Roaring Fork; and a disused pack-trail, which once served a scattered pioneer corps of prospectors, climbs by tortuous stages to the windswept pass, now swerving from bank to bank of the stream, and now heading a lateral gulch or crossing the point of a barrier spur.

It is a crystalline afternoon in mid-autumn. Indian summer on the high plateaus of the continent's crest there is none, but instead, a breathing space of life-giving days, with the bouquet of fine old wine in the keen-edged air, and of frosty nights when the stars swing clear in illimitable space. Positive coloring, other than the sombre greens of pine and fir, is lacking. The season of bursting buds and quickening leaf tints is over, and what little deciduous vegetation the altitude permits is present only in twig traceries and sun-cured range grass. In the heart of the valley the heights are heavily wooded, and the sombre greens wall out the world to the sky-line; but farther on bald slopes and ridges stretch away above the pines and firs, and the blue arch of the firmament springs clear from snow-capped abutments of fallow dun and weathered gray.

In the upper levels of the valley the disused trail leaves the stream and begins to climb by loops and zigzags to the pass. On the reverse curve of one of the loops—the last but one in the upward path—a solitary horseman sends his mount recklessly onward, heedless alike of stones of stumbling and the breath-cutting steepness of the way. His head is bandaged, and he rides loose in the saddle like a drunken man, swaying and reeling, but evermore urging the horse by word and blow and the drumming of unspurred heels. His feet are thrust far into the stirrups, and at every fresh vantage point he steadies himself by pommel and cantle to scan the backward windings of the trail. A man riding desperately for his life and against time, with a handicap of physical unfitness, one would say; but there would seem to be fierce determination in the unrelenting onpush, as if wounds and weariness were as yet no more than spurs to goad and whips to drive.

The reverse curve of the loop ends on the crest of the last of the barrier spurs, and at the crown of the ascent the forest thins to right and left, opening a longer backward vista. On the bare summit the rider turns once more in his saddle, and the rearward glance becomes a steady eye-sweep. In the bight of the loop which he has just traversed the trail swings clear of the gulch timber, and while he gazes two dark objects advancing abreast and alternately rising and falling to a distance-softened staccato of pounding hoofs cross the open space and double the loop. The wounded one measures his lead. For all his spurrings the distance is decreasing; and a hasty survey of the trail ahead is not reassuring. From the bald summit of the spur the bridle path winds around the head of another gulch, and the approach to the pass on the farther side is a snow-banked incline, above timber line, uncovered, and within easy rifle-shot of the hill of reconnaissance. What will befall is measurably certain. If he attempts to head the traversing ravine on the trail, his pursuers will reach the bald summit, wait, and pick him off at their leisure while he is scaling the opposite snowbank.

At the second glance a dubious alternative offers. The gorge in the direct line may not prove impassable; there is a slender chance that one may push straight across and up the opposing slope to the pass before the guns of the enemy can be brought into position. Wherefore he sends the horse at a reckless gallop down the descent to the gorge, making shift to cling with knee and heel while he disengages a rifle from its sling under the saddle-flap, and fills its magazine with cartridges from a belt at his waist.

At the bottom of the ravine the alternative vanishes; becomes a thing inexistent, in fact. The gorge in its lower length is a canyoned slit, a barrier to be passed only by creatures with wings. To return is to meet his pursuers on the bald summit of the spur; to hesitate is equally hazardous. The horse obeys the sudden wrenching of the rein, spins as on a pivot, and darts away up the canyon brink. Fortunately, the timber is sparse, and, luckily again, a practicable crossing is found well within the longer detour traced by the trail. For the second time that day it is a race to the swift; and, as before, an accident comes between. Horse and man are across the ravine, are clear of the stunted firs, are mounting the final snow-banked incline to the pass with no more than a trooper's dash between them and safety, when the sure-footed beast slips on the packed snow of the trail, and horse and man roll together to the bottom of the declivity.

A few hours earlier this man had been the football of circumstances, tossed hither and yon as the buffetings of chance might impel him. But the pregnant hours have wrought a curious change in him, for better or worse, and before the breath-cutting plunge is checked he is free of the struggling horse and is kicking it to its feet to mount and ride again, charging the steep uprising with plying lash and digging heels and shouts of encouragement. Ten seconds later the trail is regained and the summit of the pass cuts the sky-line above him. Ten other flying leaps and a resolute man may hold an army at bay. But in the midst of them comes a clatter of hoofs on the rocky headland across the gulch, and a nerve-melting instant wherein the hoof-beats cease and the bleak heights give back a muffled echo in the rarefied air. The hunted one bends to the saddle-horn at the crack of the rifle, and the bullet sings high. A second is better aimed, and at the shrill hiss of it the snorting horse flattens its ears and lunges at the ascent with flagging powers fear-revived. A scrambling bound or two and the final height is gained, but in the pivoting instant between danger and safety a third bullet scores the horse's back and embeds itself in the cantle of the saddle with a benumbing shock to the rider.

But by this the fugitive is fair Berserk-mad, and those who would stay him must shoot to kill. Once out of range beyond the crest of the pass, he drags the trembling horse to its haunches and whips down from the saddle, the wine of battle singing in his veins and red wrath answering for physical fitness. A hasty glance to make sure that the broncho's wound is not disabling, and he is back at the summit of the pass, sheltering himself behind a rock and sending shot after shot across the ravine at his assailants. The fusillade is harmless; wounds, mad gallops, and red wrath being easily subversive of accuracy in target practice; but it has the effect of sending the enemy to the rear in discreet haste, with the dropping shots beating quick time for the double quartette of trampling hoofs as the twain gallop out of range behind the bald headland.

For a resolute half-hour, while the undertow of the ebbing minutes steadily undermines the props and shores set up by Berserk wrath, the solitary rifleman lies watchful and vigilant. Thrice in that interval have the attackers rallied; once in a desperate charge to gain the cover of the timber on the canyon's brink, and twice in equally desperate efforts to turn the rifleman's position by following the looping of the trail. Notwithstanding the bad marksmanship of the garrison the position has proved—still proves—impregnable; and the end of the half-hour leaguer finds the intrenched one secure in his position, with the enemy in permanent check, and only his own waning strength to warn him that the pass cannot be held indefinitely.

But this warning is imperative, as is that other of the fast westering sun; and when a movement on the opposite height gives him one more chance to announce volley-wise that the pass is still manned, he retreats swiftly, remounts after more than one exhaustive effort, and canters down the farther windings of the trail into a valley shut in on all sides by snow-coifed sentinel mountains, and with a brawling stream plunging through its midst; into this valley and down the length of it to a narrowing of the stream path, where a rude cabin, with its door hanging awry, looks across from the heel of the western cliff to the gray dump of a tunnel-opening in the opposite mountain side.

The sun has already set for the lower slopes of the shut-in valley, and the frosty breath of the snow-capped sentinel peaks is in the air. At the door of the cabin the winner in the desperate race slides from the saddle. His knees are quaking, and because of them he stumbles and falls over the log doorstone, cursing his helplessness in the jolt of it. But there remains much to be done, and the sunset glories are changing from crimson and dusky gold on the snow-caps to royal purple in the shadow of the western cliff.

With many slippings and stumblings he crosses the foot-log and climbs to the level of the tunnel-opening opposite, constraining the unwilling horse to follow. With a stone for a hammer he tacks a square of paper on one of the struts of the timbered entrance; and after another struggle feebly fierce the horse is dragged into the low-browed cavern and tethered out of harm's way. By the leaden-footed step of the man one would say that the last reserves of determination have been called in and are far spent; but he will not desist. With four stakes taken from the heap of wooden treenails used in the tunnel timbering he drags himself from corner to corner of the claim, pacing its boundaries and marking the points of intersection with dogged exactness. When the final stake is driven he can no longer stand upright, and is fain to win back to the tunnel on hands and knees with groans and futile tooth-gnashings.

But the aftermath of the task still waits; shall wait until he has barricaded the tunnel's mouth with an up-piling of timbers, fragments of rock, odds and ends movable, with a counterscarp of loose earth to make it bullet-proof—the last scraped up with bleeding hands from the dÉbris at the head of the dump.

This done, he drags himself over the barricade, finds the saddle-bags again, and strikes a light. The candle flame is but a yellow puncture in the thick gloom of the tunnel, but it serves his purpose, which is to scrawl a few words on a blank page of an engineer's note-book,—sole reminder of the thrifty forecast of saner days beyond the descent into the nether depths. An imprecation bubbles up to punctuate the signature; a pointless cursing, which is no more than a verbal mask for a groan extorted by the agony of the effort to guide the pencil point. The malison strings itself out into broken sentences of justification; mere ravings, as pointless as the curse. "Finders are keepers,—that's the law of the strong. 'He that hath clean hands shall be stronger and stronger.' I found it and gave it back, and he drowned it in a bottle.... Now it is mine; and to-morrow I'll be dead. But she'll know that I haven't—that I haven't—quite—forgotten."

To pain-blurred eyes the candle flame has faded to a nebulous point in the darkness, but still the light suffices. He has neither envelope nor sealing-wax, but he makes shift to seal the book with a wrapping of twine and a bit of pitch scraped from the nearest strut in the timbering. After which he seeks and finds the crevice in which Garvin kept his explosives; and when the note-book is safely hidden, drops exhausted behind the breastwork, with the rifle at his shoulder, beginning his vigil what time the first silvery flight of moon-arrows is pouring upon cliff-face and cabin opposite.