On night shift again Pete Holbrook reached the end of his beat, waited until his fellow-watcher on the east bulked suddenly out of the darkness, exchanged a few words with him and turned back under the star-filled sky, his horse having no difficulty in avoiding obstructions, but picking its way with ease around scattered thickets, grass-tufted hummocks, and across shallow ravines and hollows. Objects close at hand were discernible to eyes accustomed to the darkness and Pete's range of vision attained the enviable limits enjoyed by those who live out-of-doors and look over long distances. An occasional patch of sand moved slowly into his circumscribed horizon as he rode on; vague, squatting bulks gradually revealed their vegetative nature and an occasional more regular bulk told him where a cow was lying. These latter more often were catalogued by his ears before his eyes defined them and from the contentment in the sounds he nodded in satisfaction. Soon he felt the gentle rise which swept up to the breeze-caressed ridge which projected northward and forced the little creek to follow it for nearly a mile before the rocky obstruction could be passed.

There had been a time when the ridge had forced the creek again as far out of its course, but on quiet nights a fanciful listener could hear the petulant grumblings of the stream and its constant boast. Placid and slow above the ridge, the waters narrowed and deepened when they reached the insolent bulk as in concentrating for the never-ending assault. They had cut through softer resistance along the edges and now gnawed noisily at the stone itself. Narrower grew the stream and deeper, the pools clear and with clean rock bottoms and sides where the hurrying water, now free from the last vestige of color imposed by the banks further up, became crystal in the light of day. Hurrying from pool to pool, singing around bowlders it ran faster and faster as if eager for the final attempt against its bulky enemy, and hissed and growled as it sped along the abrupt rock face. Loath to leave the fight, it followed tenaciously along the other side of the ridge and at last gave up the struggle to turn sharply south again and flow placidly down the valley on a continuation of the line it had followed above.

This forced detour made the U-Bend, so called by Question-Mark riders, and the sloping ground of the ridge was as much a favorite with the cattle as were its bordering pools with the men. Here could be felt every vagrant breeze, and while the grass was scantier than that found on the more level pastures round about, and cropped closer, the cattle turned toward it when darkness came. It was the best bed-ground on the ranch.

The grunting, cud-chewing, or blowing blots grew more numerous as Holbrook went on and when he had reached the crest of the ridge his horse began to pick its way more and more to avoid them, the rider chanting a mournful lay and then followed it with a song which, had it been rightfully expurged, would have had little left to sing about. Like another serenade it had been composed in a barroom, but the barroom atmosphere was strongly in evidence. It suddenly ceased.

Holbrook stopped the song and his horse at the same instant and his roving glances roved no more, but settled into a fixed stare which drew upon itself his earnest concentration, as if the darkness could better be pierced by an act of will.

"Did I, or didn't I?" he growled, and looked around to see if his eyes would show him other lights. Deciding that they were normal he focussed them again in the direction of the sight which had stopped the song. "Bronch, I shore saw it," he muttered. "It was plain as it was short." He glanced down at the horse, saw its ears thrust rigidly forward and nodded his head emphatically. "An' so did you, or I'm a liar!"

He was no liar, for a second flash appeared, and it acted on him like a spur. The horse obeyed the sudden order and leaped forward, careening on its erratic course as it avoided swiftly appearing obstacles.

"Seems to me like it was further west th' last time," muttered Holbrook. "What th' devil it is, I don't know; but I'm goin' to show th' fambly curiosity. Can't be Kane's coyotes—folks don't usually show lights when they're stealin' cows. An' it's on Charley's section, but we'll have a look anyhow. Cuss th' wind."

The light proved to be of will-o'-the-wisp nature, but he pursued doggedly and after a time he heard sounds which suggested that he was not alone on the range. He drew his six-gun in case his welcome should take that course and swung a little to the left to investigate the sounds.

"Must be Charley," he soliloquized, but raised the Colt to a better position. One would have thought Charley to be no friend of his. The Colt went up a little higher, the horse stopped suddenly and its rider gave the night's hailing signal, so well imitated that it might easily have fooled the little animal to whom Nature had given it. It came back like a double echo and soon Charley bulked out of the dark.

"You follerin' that, too?" he asked, entirely reassured now that his eyes were all right, for he had had the same doubts as his friend.

"Yes; what you reckon it is?"

"Dunno," growled Charley. "Thought mebby it was some fool puncher lightin' a cigarette. It wasn't very bright, an' it didn't last long."

"Reckon you called it," replied Holbrook. "Well, th' only animal that lights them is humans; an' no human workin' for this ranch is lightin' cigarettes at night, these nights. Bein' a strange human where strange humans shouldn't ought to be, I'm plumb curious. All of which means I'm goin' to have a closer look."

"I'm with you," said Charley. "We better stick together or we'll mebby get to shootin' each other; an' I'm frank in sayin' I'm shootin' quick tonight, an' by ear. There ain't no honest human ridin' around out here, day or night, that don't belong here; an' them that does belong ain't over there, lightin' cigarettes nor nothin' else. That lightnin' bug don't belong, but he may stay here. Look! There she is again—this side of where I saw it last!"

"Same place," contradicted Holbrook, pushing on.

"Same place yore hat!"

"Bet you five it is."

"Yo're on; make it ten?"

"It is. Shut yore face an' keep goin'. Somethin's happenin' over there."

Minute after minute passed and then they swore in the same breath.

"It's south!" exulted Charley. "You lose."

"He crossed in front of us, cuss him," said Holbrook.

As he spoke an answering light flashed where the first ones had been seen and Holbrook grunted with satisfaction. "You lose; there's two of 'em. We was bettin' on th' other."

"They're signalin', an' there's mebby more'n two. What's th' difference? Come on, Pete! We'll bust up this little party before it starts. But what are they lightin' lights for if they're rustlin'? An' if they ain't rustlin' what'n blazes are they doin'?"

"Head over a little," said his companion, forcing his horse against his friend's. "We'll ride between th' flashes first, an' if there's a herd bein' collected we'll mebby hit it. Don't ask no questions; just shoot an' jump yore cayuse sideways."

South of them another puncher was riding at reckless speed along the chord of a great arc and although his section lay beyond Holbrook's, he was now even with them. When they changed their course they drew closer to him and some minutes later, stopping for a moment's silence so they could listen for sounds of the enemy, they heard his faint, far-off signal and answered it. He announced his arrival with a curse and a question and the answer did not answer much. They went on together, eager and alert.

"Heard you drummin' down th' ridge—you know that rocky ground rolls 'em out," the newcomer explained. "Knowed somethin' was wrong th' way you was poundin', an' follered on a gamble till I saw th' lights. Reckon Walt ain't far behind me. I'm tellin' you so you'll signal before you shoot. He's loose out here somewhere."

When the light came again it was much further west and the answering flash was north. The three pulled up and looked at each other.

"There ain't no cayuse livin' can cover ground like that second feller," growled Holbrook. "He was plumb south only a few minutes ago, an' now will you look where he is!"

"Mebby they're ghostes, Bob," suggested Charley, who harbored a tingling belief in things supernatural.

"'Ghostes'!" chuckled Holbrook. "Ghosts, you means! Th' same as 'posts!' Th' 'es' is silent, like in 'cows.' I never believed in 'em; but I shore don't claim to know it all. There's plenty of things I don't understand—an' this is shore one of 'em. My hair's gettin' stiff!"

"Yo're a couple of old wimmin!" snorted Bob. "There's only one kind of a ghost that'll slow me up—that's th' kind that packs hardware. Seein' as they ain't supposed to tote guns, I'm goin' for that coyote west of here. He don't swap ends so fast. Mebby I can turn him into a real ghost. Look out where you shoot. So-long!"

"We'll assay his jumpin' friend," called Charley.

Again the flashes showed, one to the south, the other to the north, and while the punchers marveled, the third appeared in the southwest.

"One apiece!" shouted Holbrook. "I'll take th' last. Go to 'em!" and drumming hoofbeats rolled into silence in three directions.

Soon spitting flashes in the north were answered in kind, the reports announcing six-guns in action; in the west a thinner tongue of flame and a different kind of report was answered by rapid bursts of fire and the jarring crashes of a Colt. Far to the south three stabbing flashes went upward, Walt's signal that he was coming. From beyond the U-Bend, far to the east, the triple signal came twice, flat and low. Beyond them a yellow glow sprang from the black void and marked the ranchhouse, where six sleeping men piled from their bunks and, finishing their dressing as they ran, chased the cursing trail-boss to the saddled, waiting horses, their tingling blood in an instant sweeping the cobwebs of sleep from their conjecturing brains. There was a creaking of leather, a soft, musical jingling of metal and a sudden thunderous rolling of hoofbeats as seven bunched horses leaped at breakneck speed into the darkness, the tight-lipped riders eager, grim, and tense.

Through a bushy arroyo leading to Mesquite three Mexicans rode as rapidly as they dared, laughing and carrying on a jerky, exultant conversation. A mile behind them came a fourth, his horse running like a frightened jack rabbit as it avoided the obstructions which seemed to leap at them. A bandage around the rider's head perhaps accounted for his sullenness. The four were racing to get to Red Frank's, and safety. Out on the plain the fifth, and as Fate willed it, the only one of the group openly allied to Kane, lay under his dead horse, his career of thieving and murder at an end. Close to him was a dead Question-Mark horse, and the wounded rider, wounded again by his sudden pitch from the saddle as the horse dropped under him, lay huddled on the ground. Slowly recovering his senses he stirred, groped and sat up, his strained, good arm throbbing as he shakily drew his Colt, reloaded it and fired into the air twice, and then twice more. A burst of firing answered him and he smiled grimly and settled back as the low rumbling grew rapidly louder. It threatened to pass by him, but his single shot caused a quick turn and soon his friends drew up and stopped.

"Who is it?" demanded McCullough, dismounting at his side.

"Holbrook," came the answer, shaky and faint. "They got me twice, an' my cayuse, too. Reckon I busted my leg when he went down—I shore sailed a-plenty afore I lit."

"You got one!" called an exultant voice. A match flared and in a moment the cheerful discoverer called again. "Sanchez, that Greaser monte dealer of Kane's. Plumb through th' mouth an' neck, Pete! I call that shootin', with th' dark an' all——" his voice trailed off in profane envy of the accomplishment.

But Pete, hardy soul that he was, had fainted, a fractured leg, the impact from his flying fall and three bullet holes excuse enough for any man.

The flaring of the match brought a distant report and a bullet whined above the discoverer's head. Someone hurriedly fired into the air and a little later the group heard hoofbeats, which stopped abruptly when still some distance away. A signal reassured the cautious rider and soon Walt joined the group, Bob and Charley coming up later. Two of the men started back to the ranchhouse with Holbrook, the rest of the group riding off to search the plain for the two riders who had not put in an appearance, and to see what devilment they might discover. Both of the missing men were found on the remote part of the western range, one plodding stolidly toward the ranchhouse, his saddle and equipment on his shoulders; the other lay pinned under his dead horse, not much the worse, as it luckily happened, for his experience.

While the outfit concentrated on the western part of the ranch, events of another concentration were working smoothly and swiftly east of the ranchhouse, where mounted men, now free from interference, thanks to their Mexican friends, rode unerringly in the darkness, and drifted cattle into a herd with a certainty and dispatch born of long experience. Steadily the restless nucleus grew in size and numbers, the few riders who held it together chanting in low tones to keep the nervous cattle within bounds. The efficiency of these night raiders merited praise, nefarious as their occupation was, and the director of the harmonious efforts showed an uncanny understanding of the cattle, the men, and the whole affair which belongs to genius. Not a step was taken in uncertainty, not an effort wasted. Speed was obtained which in less experienced hands would have resulted in panic and a stampede. Steadily the circle of riders grew shorter and shorter; steadily, surprisingly, the shadowy herd grew, and as it grew, became more and more compact. Further down the creek a second and smaller herd was built up at the same time and with nearly the same smoothness, and waited for the larger aggregate to drift down upon it and swallow it up. The augmented trail herd kept going faster and faster, the guarding and directing riders in their alloted places and, crossing the creek, it swung northeast at a steadily increasing pace. The cattle had fed heavily and drunk their fill and to this could be ascribed the evenness of their tempers. Almost without realizing it they passed from the Question-Mark range and streamed across the guarding hills, flowing rapidly along the northern side. Gradually their speed was increased and they accepted it obediently, and with a docility which in itself was a compliment to the brains of the trail-boss. Compacted within the close cordon of the alert riders it maintained a speed on the very edge of panic, but went no further. Shortly before dawn two hard-riding rustlers pounded up from the rear, reported all clear, and fell back again, to renew their watch far back on the trail. For three hours the herd had crossed hard ground and as it passed over a high, dividing ridge and down the eastern slope the trail-boss sighed with relief, for now dawn held no terrors for him. He had passed the eastern horizon of any keen-eyed watchers of the pillaged range. On went cattle and riders, and the paling dawn saw them following the hard bottom of a valley which led to others ahead, and kept them from dangerous sky lines. When the last hard-floored valley lay behind and sloping hollows of sand lay ahead, the trail-boss dropped back, uncorked his canteen of black coffee tempered with brandy, and drank long and deep. It was interpreted by his men to mean that the danger zone had been left in the rear, and they smilingly followed his example, and then leisurely and more critically looked over the herd to see what they had gained. The entire SV trail herd was there, a large number of Question-Mark cattle and a score or more miscellaneous brands, which Ridley from time to time had purchased at bargain prices from needy owners. The trail-boss grinned broadly and waved his hand. It was a raid which would go down the annals of rustler history and challenge strongly for first honors. At noon the waiting caviya was picked up, and Miguel and his three friends added four more riders to the ranks. He took his place well ahead of the hurrying cattle, and remained there until the first, and seldom visited, water-hole was reached, where a short rest was taken. Then he led the way again, abruptly changing the direction of the herd's course and, following depressions in the desert floor, struck for Bitter Spring, which would be reached in the early morning hours. By now the raid was a successful, accomplished fact, according to all experience, and the matter of speed was now decided purely upon the questions of water and food, which, however, did not let it diminish much.

The trail-boss dropped back to his segundo and smiled. "Old Twitchell's got somethin' to put up a holler over now."

The other grinned expansively. "He'll mebby ante up another reward—he shore is fond of 'em."

Back on the Question-Mark a sleepy rider jogged along the creek, idly looking here and there. Suddenly he stiffened in the saddle, looked searchingly along the banks of the little stream, glanced over a strangely deserted range and ripped out an oath as he wheeled to race back to the ranchhouse. His vociferous arrival caused a flurry, out of which emerged Johnny Nelson, who ran to the corral, caught and saddled his restive black, and scorning such a thing as a signal fire, especially when he feared that he could not start it within the limits of the time specified, raced across the valley, climbed the hills at a more sedate pace, dropped down the further slopes like a stone, and raced on again for the little camp on Sand Creek.