The sun went down, and the golden, rosy veils turned to blue and shaded darker till twilight was there in the valley. Only the spurs of mountains, spiring the near and far horizon, retained their clear outline. Darkness approached, and the clear peaks faded. The horses stamped to be on the move.
"Malo!" exclaimed the Yaqui.
He did not point with arm, but his falcon head was outstretched, and his piercing eyes gazed at the blurring spot which marked the location of Coyote Tanks.
"Jim, can you see anything?" asked Ladd.
"Nope, but I reckon he can."
Darkness increased momentarily till night shaded the deepest part of the valley.
Then Ladd suddenly straightened up, turned to his horse, and muttered low under his breath.
"I reckon so," said Lash, and for once his easy, good-natured tone was not in evidence. His voice was harsh.
Gale's eyes, keen as they were, were last of the rangers to see tiny, needle-points of light just faintly perceptible in the blackness.
"Laddy! Campfires?" he asked, quickly.
"Shore's you're born, my boy."
"How many?"
Ladd did not reply; but Yaqui held up his hand, his fingers wide. Five campfires! A strong force of rebels or raiders or some other desert troop was camping at Coyote Tanks.
Yaqui sat his horse for a moment, motionless as stone, his dark face immutable and impassive. Then he stretched wide his right arm in the direction of No Name Mountains, now losing their last faint traces of the afterglow, and he shook his head. He made the same impressive gesture toward the Sonoyta Oasis with the same somber negation.
Thereupon he turned Diablo's head to the south and started down the slope. His manner had been decisive, even stern. Lash did not question it, nor did Ladd. Both rangers hesitated, however, and showed a strange, almost sullen reluctance which Gale had never seen in them before. Raiders were one thing, Rojas was another; Camino del Diablo still another; but that vast and desolate and unwatered waste of cactus and lava, the Sonora Desert, might appal the stoutest heart. Gale felt his own sink–felt himself flinch.
"Oh, where is he going?" cried Mercedes. Her poignant voice seemed to break a spell.
"Shore, lady, Yaqui's goin' home," replied Ladd, gently. "An' considerin' our troubles I reckon we ought to thank God he knows the way."
They mounted and rode down the slope toward the darkening south.
Not until night travel was obstructed by a wall of cactus did the Indian halt to make a dry camp. Water and grass for the horses and fire to cook by were not to be had. Mercedes bore up surprisingly; but she fell asleep almost the instant her thirst had been allayed. Thorne laid her upon a blanket and covered her. The men ate and drank. Diablo was the only horse that showed impatience; but he was angry, and not in distress. Blanco Sol licked Gale's hand and stood patiently. Many a time had he taken his rest at night without a drink. Yaqui again bade the men sleep. Ladd said he would take the early watch; but from the way the Indian shook his head and settled himself against a stone, it appeared if Ladd remained awake he would have company. Gale lay down weary of limb and eye. He heard the soft thump of hoofs, the sough of wind in the cactus–then no more.
When he awoke there was bustle and stir about him. Day had not yet dawned, and the air was freezing cold. Yaqui had found a scant bundle of greasewood which served to warm them and to cook breakfast. Mercedes was not aroused till the last moment.
Day dawned with the fugitives in the saddle. A picketed wall of cactus hedged them in, yet the Yaqui made a tortuous path, that, zigzag as it might, in the main always headed south. It was wonderful how he slipped Diablo through the narrow aisles of thorns, saving the horse and saving himself. The others were torn and clutched and held and stung. The way was a flat, sandy pass between low mountain ranges. There were open spots and aisles and squares of sand; and hedging rows of prickly pear and the huge spider-legged ocatillo and hummocky masses of clustered bisnagi. The day grew dry and hot. A fragrant wind blew through the pass. Cactus flowers bloomed, red and yellow and magenta. The sweet, pale Ajo lily gleamed in shady corners.
Ten miles of travel covered the length of the pass. It opened wide upon a wonderful scene, an arboreal desert, dominated by its pure light green, yet lined by many merging colors. And it rose slowly to a low dim and dark-red zone of lava, spurred, peaked, domed by volcano cones, a wild and ragged region, illimitable as the horizon.
The Yaqui, if not at fault, was yet uncertain. His falcon eyes searched and roved, and became fixed at length at the southwest, and toward this he turned his horse. The great, fluted saguaros, fifty, sixty feet high, raised columnal forms, and their branching limbs and curving lines added a grace to the desert. It was the low-bushed cactus that made the toil and pain of travel. Yet these thorny forms were beautiful.
In the basins between the ridges, to right and left along the floor of low plains the mirage glistened, wavered, faded, vanished–lakes and trees and clouds. Inverted mountains hung suspended in the lilac air and faint tracery of white-walled cities.
At noon Yaqui halted the cavalcade. He had selected a field of bisnagi cactus for the place of rest. Presently his reason became obvious. With long, heavy knife he cut off the tops of these barrel-shaped plants. He scooped out soft pulp, and with stone and hand then began to pound the deeper pulp into a juicy mass. When he threw this out there was a little water left, sweet, cool water which man and horse shared eagerly. Thus he made even the desert's fiercest growths minister to their needs.
But he did not halt long. Miles of gray-green spiked walls lay between him and that line of ragged, red lava which manifestly he must reach before dark. The travel became faster, straighter. And the glistening thorns clutched and clung to leather and cloth and flesh. The horses reared, snorted, balked, leaped–but they were sent on. Only Blanco Sol, the patient, the plodding, the indomitable, needed no goad or spur. Waves and scarfs and wreaths of heat smoked up from the sand. Mercedes reeled in her saddle. Thorne bade her drink, bathed her face, supported her, and then gave way to Ladd, who took the girl with him on Torre's broad back. Yaqui's unflagging purpose and iron arm were bitter and hateful to the proud and haughty spirit of Blanco Diablo. For once Belding's great white devil had met his master. He fought rider, bit, bridle, cactus, sand–and yet he went on and on, zigzagging, turning, winding, crashing through the barbed growths. The middle of the afternoon saw Thorne reeling in his saddle, and then, wherever possible, Gale's powerful arm lent him strength to hold his seat.
The giant cactus came to be only so in name. These saguaros were thinning out, growing stunted, and most of them were single columns. Gradually other cactus forms showed a harder struggle for existence, and the spaces of sand between were wider. But now the dreaded, glistening choya began to show pale and gray and white upon the rising slope. Round-topped hills, sunset-colored above, blue-black below, intervened to hide the distant spurs and peaks. Mile and mile long tongues of red lava streamed out between the hills and wound down to stop abruptly upon the slope.
The fugitives were entering a desolate, burned-out world. It rose above them in limitless, gradual ascent and spread wide to east and west. Then the waste of sand began to yield to cinders. The horses sank to their fetlocks as they toiled on. A fine, choking dust blew back from the leaders, and men coughed and horses snorted. The huge, round hills rose smooth, symmetrical, colored as if the setting sun was shining on bare, blue-black surfaces. But the sun was now behind the hills. In between ran the streams of lava. The horsemen skirted the edge between slope of hill and perpendicular ragged wall. This red lava seemed to have flowed and hardened there only yesterday. It was broken sharp, dull rust color, full of cracks and caves and crevices, and everywhere upon its jagged surface gew the white-thorned choya.