On only one point did he feel that his cleverness might rival hers and that point was the most important of all—man the Great Destroyer. She knew him only from a distance whereas had not Alcatraz breathed that dreaded scent close at hand? Had he not on one unforgetable occasion felt the soft flesh turn to pulp beneath his stamping feet, and heard the breaking of bones? His nostrils distended at the memory and again he searched the lowlands.

No, there was not a shadow of a place where man might be concealed and that scent could be nothing but a snare and an illusion. To be sure there were other ways hardly less convenient to the waterhole, but why should he be turned from the easiest way day after day because of this unbodied warning? He started down the slope.

It brought the grey after him, neighing wildly, but though she circled around him at full speed time after time, he would not pause, and when she attempted to block him he raised his head and pushed her away with the resistless urge of breast and shoulders. At that she attempted no more forceful persuasion but fell in behind him, still pausing from time to time to send her mournfully persuasive whinny after the obdurate leader until even the bays, usually so blindly docile, grew alarmed and fell back to a huddled grouping half way between Alcatraz and the trailing grey. It touched his pride sharply, this division of their trust. Twice he slackened his lope and called to them to hasten and when they responded with only a faint-hearted trot he was forced to mask his impatience. Coming to a walk he cropped imaginary grasses from time to time and so induced the others to draw nearer.

It was slow work going down the hollow in this way, and hot work, too, but though he often glanced up yearningly towards the wooded hills beyond, he kept to his pretense of carelessness and so managed to hold the mares in a close-bunched group behind him. In the meantime the scent grew stronger, closer to the ground on that east wind. Time and again he raised his head and stared earnestly, but it was impossible for any living creature to stalk within hundreds of yards of him without being seen—whereas that scent spoke of one almost within leaping distance. Once it seemed to his excited imagination—as he lowered his head to sniff at a tuft of dead grasses—that he heard the sound of human breathing.

He snorted the foolish thought into nothingness and after a glance back to make sure that his companions followed, he resolutely stepped out into the very heart of the man-scent. So closely was that phantom located by the sense of smell that it seemed to Alcatraz he could see the exact spot on the hillside behind a small rock where the ghost must lie. Yet he disdained to flee from empty air and for all his beating heart he raised his head and walked sedately on. The danger spot was drifting past on his left when a squeal of fear from the wild grey far in the rear made Alcatraz leap sidewise with catlike suddenness.

Growing by magic from the sand behind the little rock the head and shoulders of a man appeared, his shadow pouring down the sun-whitened slope. In his hand he swung a rapidly lengthening loop of rope and as his arm went back it knocked off the fellow's hat and exposed a shock of red hair. So much Alcatraz saw while the paralysis of fear locked every joint for the tenth part of a second, and deeply as he dreaded the apparition itself he dreaded more the whipping circle of rope. For had he not seen the dead thing become alive and snakelike in the skilled hand of Manuel Cordova? The freezing terror relaxed; the sand crunched away under the drive of his rear hoofs as he flung himself forward—with firm footing to aid he would have slid from beneath the flying danger, but as it was he heard the live rope whisper in the air above his head.

He landed on stiff legs, checked his forward impetus and flung sidewise. On solid footing he would have dodged successfully; as it was the noose barely clipped past his ear.

As the rope touched his neck, it seemed to Alcatraz that every wound dealt him by the hand of man was suddenly aching and bleeding again, the skin along his flanks quivered where the spurs of Cordova had driven home time and again, and on shoulders and belly and hips there were burning stripes where the quirt had raised its wale. Most horrible of all, in his mouth came the taste of iron and his own blood where the Spanish bit had wrenched his jaws apart. Out of the old days he might have remembered the first and bitterest lesson—that it is folly to pull against a rope—but now he saw nothing save the fleeing forms of the seven mares and his own freedom vanishing with them. In his mid-leap the lariat hummed taut, sank in a burning circle into the flesh at the base of his neck, and he was flung to the ground. No man's power could have stopped him so short; the cunning enemy had turned a half-hitch around the top of that deep-rooted rock.

He landed, not inert, but shocked out of hysteria into all his old cunning—that wily savagery which had kept Cordova in fear, ten-fold more terrible since the free life had clothed him with his full strength. The very impetus of his fall he used to help him whirl to his feet, and as he rose he knew what he must do. To struggle against the tools of man was always madness and brought only pain as a result; like a good general he determined to end the battle by getting at the root of the enemy's fire, and wheeling on his hind legs he charged Red Perris.

The first leap revealed the mystery of the man's appearance. Behind this rock, which was barely sufficient shelter for his head, he had excavated a pit sufficient to shelter his crouching body and the sand which he removed for this purpose had been spread evenly over the slope so that no suspicion might be created in the most watchful eye. He had sprung from his concealment and was now working to loosen the half-hitch from the rock. As the knot came free Alcatraz was turning and now Perris faced the charge with the rope caught in his hand. What could he do? There was only one thing, and the stallion saw the heavy revolver bared and levelled at him, a flickering bit of metal. He knew well what it meant but there was no hope save to rush on; another stride and he would be on that frail creature, tearing with his teeth and crushing with his hoofs. And then a miracle happened. The revolver was flung aside, a gleaming arc and a splash of sand where it struck; Red Perris preferred to risk his life rather than end the battle before it was well begun with a bullet. He crouched over the rope as though he had braced himself to meet the shock of the charging stallion. But that was not his purpose. As the stallion rushed on him he darted to one side and the fore hoof with which Alcatraz struck merely slashed his shirt down the back.