He stayed for a long moment gazing, and then turned reluctantly and fled like one pursued back by the way he had come. He got beyond the fence in the course of half an hour, but still he kept on. He began to feel that as long as he galloped on land which was pleasant to him it would be pleasant to man also. So he kept steadily on his way, leaping the brooks. Into the river he cast himself and swam to the farther shore. There was an instant change beyond that bank. The valley opened like a fan. The handle of it was the green, well-watered plateau into which he had first descended, but now it spread in raw colored desert, cut up by ragged hills here and there, and extending on either side to mountains purple-blue with distance.
With the water dripping from his belly, Alcatraz twinked a farewell glance to the green country behind him and set his face towards the desert. It was not so hard to leave the pleasant meadows. Now that he knew they were man-owned there was a taint in their beauty, and here on the sands of the desert with only dusty bunch-grass to eat and muddy waterholes to drink from, he was at least free from the horror of the enemy. He kept on fairly steadily, nibbling in the bunch-grass as he went, now trotting a little, now cantering lightly across a stretch barren of forage. So he came, just after noonday, down-wind from the scent of horses.
His own kind, yet he was worried, for he connected horses inevitably with the thought of man. Nevertheless, he decided to explore, and coming warily over a rise of ground he saw, in the hollow beyond, a whole troop of horses without a man in sight. He was too wise to jump to conclusions but slipped back from his watch-post and ran in a long semi-circle about the herd, but having made out that there was no cowpuncher nearby, he came back to his original place of vantage and resumed his observations.
A beautiful black stallion wandered up-wind from the rest and another, younger horse, was on the other side of the herd. Between was a raggedly assembled group of mares old and young, with leggy yearlings, deer-footed colts, and more than one time-worn stallion. It was a motley assembly. The colors ranged from piebald to grey and there was a great diversity in stature. Presently the black stallion neighed softly, whereat the rest of the herd bunched closely together, the mares with the foals on the side, and all heads turning towards the black who now galloped to a hilltop, surveyed the horizon and presently dropped his head to graze again.
This was a signal to the others. They spread out again carelessly, but Alcatraz was beginning to put two and two together in his thoughts. The two stallions were obviously guards, but what should they be guarding against in the broad light of day except that terrible destroyer who hunts as well at noon as at midnight—man! Inspiration came to Alcatraz. The difference of color and stature, the unkempt manes and tails, the wild eyes, were all telling a single story, now. These were not servants to man, and since they were not his servants they must be enemies, for that was the law of the world. The great enemy dominated, and where he could not dominate he killed. And the herd feared the same power which Alcatraz feared; instantly they became to him brothers and sisters, and he stepped boldly into view.
The result was startling. From the hilltop the black stallion whinnied shrill and short and in a twinkling the whole group was in motion scurrying north. Alcatraz looked in wonder and saw the black fall in behind the rest and range across the rear biting the flanks of older horses who found it difficult to keep the hot pace. With this accomplished and when the herd was stolidly compacted before his driving, the black skirted around the whole group and with a magnificent spurt of running placed himself in the lead. He kept his place easily, a strong galloping grey mare at his hip, and from time to time tossed his head to the side to take stock of his followers. And so they dipped out of sight beyond the next swell of ground.
Alcatraz recovered from his amazement to start in pursuit. This was a mystery worth solving. Moreover, the moment he made sure that these were not man-owned creatures they had become inexplicably dear to him and as they disappeared his heart grew heavy. His running gait carried him quickly in view. They had slackened in their flight a little but as he hove in sight again they took the alarm once more, the foals first rushing to the front and then the whole herd with flying manes and tails blown straight out.
It was a goodly sight to Alcatraz. Moreover, his heart leaped strangely, as it always did when he saw horses in full gallop. Perhaps they were striving to test his speed of foot before they admitted him to their company. In that case the answer was soon given. He sent his call after them, bidding them watch a real horse run, then overtook them in one dizzy burst of sprinting. His rush carried him not only up to them but among them. Two or three youngsters swerved aside with frightened snorts, but as he came up behind a laboring mare she paused in her flight to let drive with both heels. Alcatraz barely escaped the danger with a sidestep light as a dancer's and shortened his gallop.
He could not punish the mare for her impudence; besides, he needed time to rearrange his thoughts. Why should they flee from a companion who intended no harm? It was a great puzzle. In the meantime, keeping easily at the heels of the wild horses, he noted that they were holding their pace better than any cowponies he had ever seen running. From the oldest mare to the youngest foal they seemed to have one speed afoot.
A neigh from the black leader made the herd scatter on every side like fire in stubble. Alcatraz halted to catch the meaning of this new maneuver and saw the black approaching at a high-stepping trot as one determined to explore a danger but ready to instantly flee if it seemed a serious threat. His gaze was fixed not on Alcatraz but on the far horizon where the hills became a blue mist rolling softly against the sky. He seemed to make up his mind, presently, that nothing would follow the chestnut out of the distance and he began to move about Alcatraz in a rapid gallop, constantly narrowing his circle.