Half an hour later the four-mule team was winding slowly up a rocky path. On both sides the heights were steep, covered with a thick undergrowth of scrub oak and juniper. Here and there rocky cliffs jutted out from the hillside and stood like sentinels along the way. The sergeant, with one trooper, rode some distance ahead, their carbines “advanced” and ready for use, for Edwards was an old campaigner, and, though he thought it far from probable that any outlaws would be fools enough to attempt to “get away with” a paymaster's bank when he and his five men were the guardians and Captain Rawlins with his whole troop was but a short distance away, he had learned the lesson of precaution. Major Sherrick, with his iron safe under his own seat, grasped a rifle in both hands. The driver was whistling softly to himself and glancing attentively ahead, for there was a continuous outcrop of boulders all along the road. The remaining troopers, four in number, rode close behind or alongside the wagon.
Presently they reached a point where, after turning a precipitous ledge of rock, glistening in the morning sunshine, they saw before them a somewhat steep incline. Here, without a word, Staines swung lightly from the vehicle and trudged for a moment alongside; then he stooped to adjust his boot lace, and when Sherrick looked back the clerk was coming jauntily after them, only a dozen paces in rear. In this order they pushed ahead perhaps a hundred yards farther, moving slowly up the defile, and Staines could easily have regained his distance, but for some reason failed to do so. Suddenly, and for no apparent cause, Jenny and her mate shied violently, swerved completely around and were tangled up with the wheel team before the driver could use the lash. Even his ready blasphemy failed to straighten things out.
“Look out for those rocks up there on the right!” he shouted. “Grab their heads, Billy!”
Even as he spoke the rocky walls of the Canyon resounded with the crash of a score of firearms. The driver, with a convulsive gasp, toppled forward out of his seat, his hand still clinching the reins. One of the troopers clapped his hand to his forehead, his reins falling useless upon his horse's neck, and reeled in the saddle as his charger whirled about and rushed, snorting with fright, down the narrow road. At the instant of the firing the sound of a dozen “spats” told where the leaden missiles had torn through the stiff canvas cover of the ambulance; and Sherrick, with blanched face, leaped from the riddled vehicle and plunged heavily forward upon his hands and knees. Two of the troopers sprang from their saddles, and, crouching behind a boulder across the road, opened fire up the opposite hillside. The sergeant and his comrade, bending low over their horses' necks, came thundering back down the Canyon, just in time to see the mules whirl about so suddenly as to throw the ambulance on its side. The iron safe was hurled into the shallow ditch; the wagon bed dragged across the prostrate form of the paymaster, rolling him over and over half a dozen times, and then, with a wreck of canvas, splinters, chains and traces clattering at their heels, the four mules went rattling away down the gorge.
“Jump for shelter, men!” shouted Sergeant Edwards, as he dragged the senseless form of the major under the great ledge to the right. “Stand them off as long as you can! Come out of your holes, you cowardly hounds!” he roared, shaking his fist at the smoke-wreathed rocks up the heights. “Come out and fight fair! There's only five of us left!”
Here in the road lay the major, bleeding from cuts and bruises, with every breath knocked out of his battered body; yonder, his hands 'clinched in the death agony, the stiffening form of the driver—plucky to the last. Twenty yards away down the road, all in a heap, lay one poor soldier shot through the head, and now past praying for. One of the others was bleeding from a gash along the cheek where a bullet had zipped its way, and Edwards shouted in vain for Staines to join them; the clerk had disappeared. For full five minutes the desperate combat was maintained; the sergeant and his little squad crouching behind the nearest rocks and firing whenever head or sombrero showed itself along the heights. Then came shots from the rear, and another poor fellow was laid low, and Edwards realized, to his despair, that the bandits were on every side, and the result only a question of time.
And then—then, there came a thunder of hoof beats, a storm of ringing cheers, a rush and whirl of panting, foaming steeds and a score of sunburnt, stalwart troopers racing in the lead of a tall young soldier, whose voice rang clear above the tumult: “Dismount! Up the rocks, men! Lively now!” And, springing from his own steed, leaping catlike from rock to rock, Phil Adriance went tearing up the heights, his soldiers at his heels. Edwards and his unwounded men seized and held the trembling horses; Sherrick feebly crawled to his precious safe and fell across it, his arms clasping about his iron charge. For five minutes more there was a clamor of shots and shouts, once in a while a wild Mexican shriek for mercy, all the tumult gradually receding in the distance, and at last—silence. Then two men came down the bluffs, half bearing between them the limp form of their young leader. The lieutenant was shot through both thighs and was faint from loss of blood.