They pulled their guns to their shoulders and sent a volley at the outlaw. One bullet clipped a spark from the rocks just behind the stallion's feet; the other two must have gone wide. Once more Barry flinched closer over the neck of Satan and once again the horse answered with a fresh burst of speed, but in a few moments he came back to them.

Flesh could not stand that pace after seventy-five miles of running.

They saw the rider straighten and look back; then the sun flashed on his rifle.

"Feed 'em the spur!" shouted Retherton. "If we can't hit him shooting ahead, he ain't got a chance to hit us shootin' backwards." For it is notoriously hard to turn in the saddle and accomplish anything with a rifle. One is moving away from the target instead of toward it, and every condition of ordinary shooting is reversed; above all, the moment a man turns his head he is completely out of touch with his horse.

Apparently the fugitive knew this and made no attempt to place his shots. He merely jerked his gun to the shoulder and blazed away as soon as it was in place; half a dozen yards in front of Retherton the bullet kicked up the dust.

"I told you," he shouted. "He can't do nothin' that way. Close in, boys.

Close in for G.o.d's sake!"

He himself was flailing with his quirt, and the buckskin grunted at every strike. Once more the rifle pitched to the outlaw's shoulder, and this time the bullet clicked on a rock not ten feet from Retherton, and again on a straight line for him.

"d.a.m.ned if that ain't shootin'!" called Garry, and Retherton, alarmed, swung the buckskin out to one side to throw the marksman out of line.

He had turned again in the saddle, and as though the episode were at an end, restored his rifle to its case, but when they poured in another volley about him, he swung sharply roundabout again, gun in hand. Once more the rifle went to his shoulder, and this time the bullet knocked a puff of dust into the very nostrils of the buckskin. Retherton reined in with an oath.

"He's been warn in' me, boys," he called. "That devil has the range like he was sitting in a rockin' chair shooting at a tin-can. He's warnin' us back to the rest of the gang. And d.a.m.ned if we ain't goin'!"

It was quite patent that he was right, for three bullets sent on a line for one horse, and each of them closer, could mean only one thing. They checked their horses, and in a moment the rest of the posse was clattering around them.

"It don't make no difference," called Retherton, "savin' in time. Maybe he'll last to Wilsonville, but he can't stay in three miles when we hang onto him with fresh hosses. The black is runnin' on nothin' but guts right now."

Chapter x.x.xV. The Asper

Ninety miles of ground, at least, had been covered by the black stallion, since he left Rickett that morning, yet when he galloped across the plain in full sight of Wilsonville there were plenty of witnesses who vowed that Satan ran like a colt frolicking over a pasture. Mark Retherton knew better, and the posse to a man felt the end was near. They changed saddles in a savage silence and went down the street out of town with a roar of racing hoofs.

And Barry too, as he watched them whip around the corner of the last house and streak across the fields, knew that the end of the ride was near. Strength, wind and nerve were gone from Satan; his hoofs pounded the ground with the stamp of a plowhorse; his breath came in wheezes with a rattle toward the end; the tail no longer fluttered out straight behind. Yet when the master leaned and called he found something in his great heart with which to answer. A ghost of his old buoyancy came in his stride, the drooping head rose, one ear quivered up, and he ran against the challenge of those fresh ponies from Wilsonville. There were men who doubted it when the tale was told, but Mark Retherton swore to the truth of it.

Even then that desperate effort was failing. Not all the generous will in the heart of the stallion could give his legs the speed they needed; and he fell back by inches, by feet, by yards, toward the posse. They disdained their guns now, and kept them in the cases; for the game was theirs.

And then they noted an odd activity in the fugitive, who had slipped to one side and was fumbling at his cinches. They could not understand for a time, but presently the saddle came loose, the cinches flipped out, and the whole apparatus crashed to the ground. Nor was this all. The rider leaned forward and his hands worked on the head of his mount until the hackamore also came free and was tossed aside. To that thing fifteen good men and true swore the next day with strange oaths, and told how a man rode for his life on a horse that wore neither saddle nor bridle but ran obediently to voice and hand.

Every ounce counted, and there were other ounces to be spared. He was leaning again, to this side and then to that, and presently the posse rushed past the discarded riding-boots.

There lay the rifle in its case on the saddle far behind. And with the rifle remained all the fugitive's chances of fighting at long range.

Now, following, came the heavy cartridge belt and the revolver with it.

The very sombrero was torn from his head and thrown away.

His horse was failing visibly; not even this lightening could keep it away from the posse long; and yet the man threw away his sole chance of safety. And the fifteen pursuers cursed solemnly as they saw the truth.

He would run his horse to death and then die with it empty handed rather than let either of them fall a captive.

Unburdened by saddle or gun or trapping, the stallion gave himself in the last effort. There ahead lay safety, if they could shake off this last relay of the posse, and for a time he pulled away until Retherton grew anxious, and once more the bullets went questing around the fugitive. But it was a dying effort. They gained; they drew away; and then they were only holding the posse even, and then once more, they fell back gradually toward the pursuit. It was the end, and Barry sat bolt erect and looked around him; that would be the last of him and the last scene he should see.

There came the posse, distant but running closer. With every stride Satan staggered; with every stride his head drooped, and all the lilt of his running was gone. Ten minutes, five minutes more and the fifteen would be around him. He looked to the river which thundered there at his side.

It was the very swiftest portion of all the Asper between Tucker Creek and Caswell City. Even at that moment, a few hundred yards away, a tall tree which had been undermined, fell into the stream and dashed the spray high; yet even that fall was silent in the general roar of the river. Checked by the body and the branches of the tree for an instant before it should be torn away from the bank and shot down stream, the waters boiled and left a comparatively smooth, swift sliding current beyond the obstruction; and it gave to Barry a chance or a ghost of a chance:

The central portion of the river bed was chopped with sharp rocks which tore the stream into white rages of foam; but beyond these rocks, a little past the middle, the tree like a dam smoothed out the current; it was still swift but not torn with swirls or cross-currents, and in that triangle of comparatively still water of which the base was the fallen tree, the apex lay on a sand bar, jutting a few yards from the bank. And the forlorn hope of Barry was to swing the stallion a little distance away from the banks, run him with the last of his ebbing strength straight for the bank, and try to clear the rocky portion of the river bed with a long leap that might, by the grace of G.o.d, shoot him into the comparatively protected current. Even then it would be a game only a t.i.the won, for the chances were ten to one that before they could struggle close to the sh.o.r.e, the currents would suck them out toward the center. They would never reach that shelving bit of sand, but the sharp rocks of the stream would tear them a moment later like teeth. Yet the dimmest chance was a good chance now.

He called Satan away from his course, and at the change of direction the stallion staggered, but went on, turned at another call, and headed straight for the stream. He was blind with running; he was numbed by the long horror of that effort, no doubt, but there was enough strength left in him to understand the master's mind. He tossed his head high, he flaunted out his tail, and sped with a ghost of his old sweeping gallop toward the bank.

"Bart!" shouted the master, and waved his arm.

And the wolf saw too. He seemed to cringe for a moment, and then, like some old leader of a pack who knows he is about to die and defies his death, he darted for the river and flung himself through the air.

An instant later Satan reared on the bank and shot into the air. Below him the teeth of the rocks seemed to lift up in hunger, and the white foam jumped to take him. The crest of the arc of his jump was pa.s.sed; he shot lower and grazing the last of the stones he plunged out of sight in the swift water beyond. There were two falls, not one, for even while the black was in the air Barry slipped from his back and struck the water clear of Satan.

They came up again struggling in the last effort toward the sh.o.r.e. The impetus of their leap had washed them well in toward the bank, but the currents dragged them out again toward the center of the stream where the rocks waited. Down river they went, and Black Bart alone had a ghost of a chance for success. His leap had been farther and he skimmed the surface when he struck so that by dint of fierce swimming he hugged close to the sh.o.r.e, and then his claws bedded in the sand-bank.

As for Barry, the waters caught him and sent him spinning over and over, like a log, whipping down stream, while the heavier body of Satan was struggling whole yards above. There was no chance for the master to reach the sand-bank, and even if he reached it he could not cling; but the wolf-dog knew many things about water. In the times of famine long years before the days of the master there had been ways of catching fish.

He edged forward until the water foamed about his shoulders. Down came Dan, his arms tumbling as he whirled, and on the sleeve of one of those arms the teeth of Bart closed. The cloth was stout, and yet it ripped as if it were rotten veiling, and the tug nearly swept Bart from his place.

Still, he clung; his teeth shifted their hold with the speed of light and closed over the arm of the master itself, slipped, sank deeper, drew blood, and held. Barry swung around and a moment later stood with his feet buried firmly in the bank.

He had not a moment to spare, for Satan, only his eyes and his nose showing, rushed down the current, making his last fight. Barry thrust his feet deeper in the sand, leaned, buried both hands in the mane of the stallion. It was a far fiercer tug-of-war this time, for the ample body of the horse gave the water a greater surface to grapple on, yet the strength of the man sufficed. His back bowed; his shoulders ached with the strain; and then the forefeet of Satan pawed the sand, and all three staggered up the shelving bank, reeled among the trees, and collapsed in safety.

So great was the roar of the water that they heard neither shouts nor the reports of the guns, but for several minutes the bullets of the posse combed the shrubbery as high as the breast of a man.

Chapter x.x.xVI. The Empty Cave

Through ten months of the year a child of ten could wade the Asper but now its deep roaring that set the ground quivering under Barry gave him perfect a.s.surance of safety. Not one of that posse would attempt the crossing, he felt, but he slipped back through the shrubbery close to the bank to make sure. He was in time to see Mark Retherton give a command with gestures that sent reluctant guns into the holsters. Fists were brandished toward the green covert on the farther side of the river, so close, such an unreachable distance. One or two rode their horses down to the very edge of the water, but they gave up the thought and the whole troop turned back toward Wilsonville; even the horses were down-headed.

Back in the covert he found Bart lying with his head on his paws, his eyes closed, his sides swelling and closing till every rib seemed broken; yet now and then he opened one red eye to look at Satan. The stallion lay in almost exactly the same position, and the rush and rattle of his breathing was audible even in the noise of the Asper; Barry dropped p.r.o.ne and pressed his ear against the left side of the horse, just behind the shoulder. The fierce vibration fairly shook his head; he could hear the rush of the blood except when that deadly rattling of the breath came. When he rose to his knees the face of the master was serious, thoughtful.

"Satan!" he called, but the river must have drowned his voice. Only when he pa.s.sed his fingers down the wet neck, one of Satan's ears p.r.i.c.ked, and fell instantly back. It would not do to let him lie there in the cool mold by the water, for he knew that the greatest danger in overheating a horse is that it may cool too quickly afterward.

He stooped directly in front of Satan and swept up an arm in command; it brought only a flicker of the eyelid, the eyelid which drooped over a glazing eye.

"Up!" he commanded.

One ear again p.r.i.c.ked; the head lifted barely clear of the ground; the forelegs stiffened with effort, trembled, and were still again.

"Bart!" shouted the master, "wake him up!"

The voice could not have carried to the wolf through the uproar of the waters, but the gesture, the expression brought home the order, and Black Bart came to his feet, staggering. Right against the nose of Satan he bared his great teeth and his snarl rattled. No living creature could hear that sound without starting, and the head of Satan raised high.

Still before him Bart growled and under his elbow and his chest the hands of the master strained up. He swayed with a snort very like a human groan, struggled, the forelegs secured their purchase, and he came slowly to his feet. There he stood, braced and head low; a child might have caught him by the mane and toppled him upon his side, and already his hind legs were buckling.

"Get on!" cried Barry.

There was a lift of the head, a quivering of the tensed nostrils, but that was all. He seemed to be dying on his feet, when the master whistled. The sound cut through the rushing of the Asper as a ray of light probes a dark room, shrill, harsh, like the hissing of some incredible snake, and Satan went an uncertain step forward, reeled, almost fell; but the shoulder of the master was at his side lifting up, and the arm of the master was under his chest, raising. He tried another step; he went on among the trees with his forelegs sprawling and his head drooped as though he were trying to crop gra.s.s. Black Bart did his part to recall that flagging spirit. Sometimes it was his snarl that startled the black; sometimes he leaped, and his teeth clashed a hair's breadth from Satan's nose.

By degrees the congealing blood flowed freely again through Satan's body; he no longer staggered; and now he lifted a forepaw and struck vaguely at Bart as the wolf-dog leaped. Barry stepped away.

"Bart!" he called, and the shouting of the Asper was now so far away that he could be heard. "Come round here, old boy, and stop botherin'

him. He's goin' to pull through."