Gaston turned sharply and Diana read his purpose in the horror in his eyes. She held up her head with a little nod and the same brave smile on her white lips. "Please," she whispered, "quickly!" A spasm crossed his face, "Turn your head," he muttered desperately. "I cannot do it if you----"

There was a rattle of shots, and with a gasp he crumpled up against her. For a moment it was pandemonium. Standing over Gaston's body she fired her last shot and flung the empty revolver in the face of a man who sprang forward to seize her. She turned with a desperate hope of reaching Gaston's horse, but she was hemmed in, and for a second she stood at bay, hands clenched and teeth set, braving the wild faces that surrounded her, and were closing in upon her, with flashing defiant eyes. Then she was conscious of a crashing blow on her head, the ground heaved up under her feet, everything went black before her eyes, and without a sound she fell senseless.

Late in the afternoon Saint Hubert was still writing in the big tent.

Henri had deciphered the notes that had baffled his master in the morning, and the Vicomte had taken advantage of the solitude to do some long-neglected work. He had forgotten the time, forgotten to be surprised at Diana's continued absence, immersed in the interesting subject he was dealing with, and not realising the significance of her delayed return. Ahmed had spoken of the proximity of his hereditary enemy, but Saint Hubert had not grasped how near the robber Sheik had ventured.

He was too engrossed to notice the usual noise in the camp that heralded the Sheik's arrival, and he looked up with a start when Ahmed Ben Ha.s.san swept in. The Sheik's dark eyes glanced sombrely around the tent and without a word he went through into the inner room. In a moment he came hack.

"Where is Diane?"

Saint Hubert got up, puzzled at his tone. He looked at his watch. "She went for a ride this morning. _Dieu!_ I had no idea it was so late."

"This morning!--and not back yet?" repeated the Sheik slowly. "What time this morning?"

"About ten, I think," replied Saint Hubert uneasily. "I'm not sure. I didn't look. There was an accident, and she delayed to watch me tie up one of your foolish children who had been playing with a worthless gun."

The Sheik moved over to the doorway. "She had an escort?" he asked curtly.

"Yes."

Ahmed Ben Ha.s.san's face hardened and the heavy scowl contracted his black brows. Had she all these weeks been tricking him--feigning a content she did not feel, lulling his suspicions to enable her to seize another opportunity to attempt to get away? For a moment his face grew dark, then he put the thought from him. He trusted her. Only a week before she had given him her word, and he knew she would not lie to him. And, besides, the thing was impossible. Gaston would never be caught napping a second time, and there were also the six men who formed her guard. She would never be able to escape the vigilance of seven men. But it was the trust he had in her that weighed most with him. He had never trusted a woman before, but this woman had been different. The others who had come and gone so lightly had not even left a recollection behind them; they had faded into one concrete cause of utter boredom. There had never been any reason to trust or mistrust them, or to care if they came or went. Satiety had come with possession and with it indifference. But the emotion that this girl's uncommon beauty and slender boyishness had aroused in him had not diminished during the months she had been living in his camp. Her varying moods, her antagonism, her fits of furious rage, and, lastly, her unexpected surrender, had kept his interest alive. He had grown accustomed to her.

He had come to looking forward with a vague, indefinite pleasure, on returning from his long expeditions, to seeing the dainty little figure curled up among the cushions on the big divan. Her presence seemed to pervade the atmosphere of the whole tent, changing it utterly. She had become necessary to him as he had never believed it possible that a woman could be. And with the change that she had made in his camp there had come a change in himself also.

For the first time a shadow had risen between him and the man whose friendship had meant everything to him since, as a lad of fifteen, he had come under the influence of the young Frenchman, who was three years his senior. He realized that since the night of Raoul's arrival he had been seething with insensate jealousy. He had relied on the Western tendencies that prompted him to carry off the difficult situation, but his ingrained Orientalism had broken through the superficial veneer. He was jealous of every word, every look she gave Saint Hubert. Pride had prevented an open rupture with the Vicomte this morning, but he had ridden away filled with a cold rage that had augmented every hour and finally driven him back earlier than he had intended, riding with a recklessness that had been apparent even to his men. The sight of Raoul sitting alone absorbed in his work had in part allayed his suspicions, and he had gone on into the other room with a feeling of new expectancy that had changed to a sudden chill at its emptiness. The vacant room had brought home to him abruptly all that the girl meant to him. A latent anxiety crept into his eyes.

He went out under the awning and clapped his hands, and a servant answered the summons almost immediately. He gave an order and waited, his hands thrust into the folds of his waist-cloth and his teeth clenched on a cigarette that he had forgotten to light.

Saint Hubert joined him. "What do you think?" he asked, with a touch of diffidence.

"I don't know what to think," replied the Sheik shortly.

"But is there any real danger?"

"There is always danger in the desert, particularly when that devil is abroad." He motioned to the south with an impatient jerk of his head.

Saint Hubert's breath whistled sharply through his teeth. "My G.o.d! You don't imagine----"

But the Sheik only shrugged his shoulders and turned to Yusef, who had come up with half-a-dozen men. There was a rapid interchange of questions and answers, some brief orders, and the men hurried away in different directions, while Ahmed Ben Ha.s.san turned again to Saint Hubert.

"They were seen by three of the southern patrols this morning, but of course it was n.o.body's business to find out if they had come back or not. I will start at once--in about ten minutes. You will come with me?

Good! I have sent for reinforcements, who are to follow us if we are not back in twelve hours." His voice was expressionless, and only Raoul de Saint Hubert, who had known him since boyhood, could and did appreciate the significance of a fleeting look that crossed his face as he went back into the tent.

For a moment the Vicomte hesitated, but he knew that not even he was wanted inside that empty tent, and a half-bitter, half-sad feeling that the perfect friendship and confidence that had existed between them for twenty years would never again be the same came to them, the regretful sense of inevitable change, the consciousness of personal relegation.

Then fear for Diana drove out every other consideration, and he went to his own quarters with a heavy heart.

When he came back in a few minutes with Henri following him the camp had undergone a transformation. With the promptness of perfect discipline the hundred men who had been chosen to go on the expedition were already waiting, each man standing by his horse, and the Sheik, quiet and impa.s.sive as usual, was superintending the distribution of extra ammunition. A groom was walking The Hawk slowly up and down, and Yusef, whose gloomy eyes had been fixed reproachfully on his chief, chafing against the order to remain behind to take command of the reinforcements should they be needed, went to him and took the horse's bridle from him and brought him to the Sheik. Even as he held the stirrup Saint Hubert could see that he was expostulating with an unusual insistence, begging for permission to accompany them. But the Sheik shook his head, and the young man stood sullenly aside to avoid The Hawk's hoofs as he reared impatiently.

Ahmed Ben Ha.s.san motioned Saint Hubert to his side and in silence the cavalcade started at the usual swift gallop. The silence impressed Raoul, who was accustomed to the Arab's usual clamour. It affected his sensitive temperaments, filling him with a sinister foreboding. The silent band of stern-faced hors.e.m.e.n riding in close and orderly formation behind them suggested something more than a mere relief party. The tradition of reckless courage and organised fighting efficiency that had made the tribe known and feared for generations had been always maintained, and under the leadership of the last two holders of the hereditary name to so high a degree that the respect in which it was held was such that no other tribe had ventured to dispute its supremacy, and for many years its serious fighting capacities had not been tested.

Even Ibraheim Omair had inherited a feud that was largely traditional.

Only once during the lifetime of the last Ahmed Ben Ha.s.san had he dared to come into open conflict, and the memory of it had lasted until now.

Skirmishes there had been and would always be inevitably sufficient to keep the tribesmen in a state of perpetual expectancy, and for this Ahmed Ben Ha.s.san preserved the rigid discipline that prevailed in his tribe, insisting on the high standard that had kept them famous. The life-work that his predecessor had taken over from his father the present Ahmed Ben Ha.s.san had carried on and developed with autocratic perseverance. The inborn love of fighting had been carefully fostered in the tribe, the weapons with which they were armed were of the newest pattern. Raoul knew with perfect certainty that to the picked men following them this hasty expedition meant only one thing--war, the war that they had looked forward to all their lives, precipitated now by an accident that gave to a handful of them the chance that hundreds of their fellow-tribesmen were longing for, a chance that sent them joyfully behind their chief, careless whether the reinforcements that had been sent for arrived in time or not. The smallness of their numbers was a source of pleasure rather than otherwise; if they won through to them would be the glory of victory; if they were annihilated with them would rest the honour of dying with the leader whom they worshipped, for not one of them doubted that Ahmed Ben Ha.s.san would not survive his bodyguard, the flower of his tribe, the carefully chosen men from whose ranks his personal escort was always drawn. With them he would crush his hereditary enemy or with them he would die.

The short twilight had gone and a brilliant moon shone high in the heavens, illuminating the surrounding country with a clear white light.

At any other time the beauty of the scene, the glamour of the Eastern night, the head-long gallop in company with this band of fierce fighting men would have stirred Saint Hubert profoundly. His artistic temperament and his own absolute fearlessness and love of adventure would have combined to make the expedition an exciting experience that he would not willingly have foregone. But the reason for it all, the peril of the girl whom he loved so unexpectedly, changed the whole colour of the affair, tinging it with a gravity and a suspense that left a cold fear in his heart. And if to him, what then to the man beside him? The question that Ahmed Ben Ha.s.san had negatived so scornfully a week before had been answered differently in the swift look that had crossed his face this evening. He had not spoken since they started, and Saint Hubert had not felt able to break the silence.

They had left the level country and were in amongst the long, successive ranges of undulating ground, the summits standing out silver white in the gleaming moonlight, the hollows filled with dark shadow, like black pools of deep, still water. And at the bottom of one of the slopes the Sheik pulled up suddenly with a low, hissing exclamation. A white shape was lying face downwards, spread-eagled on the sand, almost under The Hawk's feet, and at their approach two lean, slinking forms cantered away into the night. The Sheik and Henri reached the still figure simultaneously and Saint Hubert almost as quickly. He made a hurried examination. The bullet that had stunned Gaston had glanced off, leaving an ugly cut, and others that had hit him at the same time had ploughed through his shoulder, breaking the bone and causing besides wounds that had bled freely. He had staggered more than a mile before he had fainted again from loss of blood. He came to under Saint Hubert's handling, and lifted his heavy eyes to the Sheik, who was kneeling beside him.

"Monseigneur--Madame--Ibraheim Omair," he whispered weakly, and relapsed into unconsciousness.

For a moment the Sheik's eyes met Raoul's across his body, and then Ahmed Ben Ha.s.san rose to his feet. "Be as quick as you can," he said, and went back to his horse. He leaned against The Hawk, his fingers mechanically searching for and lighting a cigarette, his eyes fixed unseeingly on the group around Gaston. The valet's broken words had confirmed the fear that he had striven to crush since he discovered Diana's absence.

He had only seen Ibraheim Omair once when, ten years before, he had gone with the elder Ahmed Ben Ha.s.san to a meeting of the more powerful chiefs at Algiers, arranged under the auspices of the French Government, to confer on a complicated boundary question that had threatened an upheaval amongst the tribes which the nominal protectors of the country were afraid would be prejudicial to their own prestige, as it would have been beyond their power to quell. He had chafed at having to meet his hereditary enemy on equal terms, and only the restraining influence of the old Sheik, who exacted an unquestioning obedience that extended even to his heir, had prevented a catastrophe that might have nullified the meeting and caused infinitely more complications than the original boundary dispute. But the memory of the robber Sheik remained with him always, and the recollection of his bloated, vicious face and gross, unwieldy body rose clearly before him now.

Ibraheim Omair and the slender daintiness that he had prized so lightly. Diane! His teeth met through the cigarette in his mouth. His senseless jealousy and the rage provoked by Raoul's outspoken criticism had recoiled on the innocent cause. She, not Saint Hubert, had felt the brunt of his anger. In the innate cruelty of his nature it had given him a subtle pleasure to watch the bewilderment, alternating with flickering fear, that had come back into the deep blue eyes that for two months had looked into his with frank confidence. He had made her acutely conscious of his displeasure. Only last night, when his lack of consideration and his unwonted irritability had made her wince several times during the evening and after Saint Hubert had gone to his own tent, he, had looked up to find her eyes fixed on him with an expression that, in his dangerous mood, had excited all the brutality of which he was capable, and had filled him with a desire to torture her. The dumb reproach in her eyes had exasperated him, rousing the fiendish temper that had been hardly kept in check all the previous week. And yet, when he held her helpless in his arms, quivering and shrinking from the embrace that was no caress, but merely the medium of his anger, and the reproach in her wavering eyes changed to mute entreaty, the pleasure he had antic.i.p.ated in her fear had failed him as it had before, and had irritated him further. The wild beating of her heart, the sobbing intake of her breath, the knowledge of his power over her, gave him no gratification, and he had flung her from him cursing her savagely, till she had fled into the other room with her hands over her ears to shut out the sound of his slow, deliberate voice. And this morning he had left her without a sign of any kind, no word or gesture that might have effaced the memory of the previous night. He had not meant to, he had intended to go back to her before he finally rode away, but Saint Hubert's refusal to accompany him had killed the softer feelings that prompted him, and his rage had flamed up again.

And now? The longing to hold her in his arms, to kiss the tears from her eyes and the colour into her pale lips, was almost unbearable. He would give his life to keep even a shadow from her path, and she was in the hands of Ibraheim Omair! The thought and all that it implied was torture, but no sign escaped him of the h.e.l.l he was enduring. The unavoidable delay seemed interminable, and he swung into the saddle, hoping that the waiting would seem less with The Hawk's restless, nervous body gripped between his knees, for though the horse would stand quietly with his master beside him, he fretted continually at waiting once the Sheik was mounted, and the necessity for soothing him was preferable to complete inaction.

Saint Hubert rose to his feet at last, and, leaving behind Henri and two Arabs, who were detailed to take the wounded man back to the camp, the swift gallop southward was resumed. On, over the rising and falling ground along which Gaston had stumbled, blind and faint with loss of blood and the pain of his wounds, past the dead body of The Dancer, ghostly white in the moonlight, lying a little apart from the semicircle of Arabs that proved the efficiency of Gaston's shooting where Diana and he had made their last stand. The Sheik made no sign and did not check the headlong gallop, but continued on, The Hawk taking the fallen bodies that lay in his path in his stride, with only a quiver of repugnance and a snort of disgust. Still on, past the huddled bundles of tumbled draperies that marked the way significantly, avoiding them where the moonlight illuminated brightly, and riding over them in the deep hollows, where once Raoul's horse stumbled badly and nearly fell, recovering himself with a wild scramble, and the Vicomte heard the dead man's skull crack under the horse's slipping hoof.

The distant howling of jackals came closer and closer until, topping one long rise and descending into a hollow that was long enough and wide enough to be fully lit by the moon, they came to the place where the ambush had been laid. Instinctively Ahmed Ben Ha.s.san knew that amongst the jostling heaps of corpses and dead horses lay the bodies of his own men. Perhaps amongst the still forms from which the jackals, whose hideous yelling they had heard, had slunk away, there might be one left with life enough to give some news. One of his own men who would speak willingly, or one of Ibraheim Omair's who would be made to speak. His lips curled back from his white teeth in a grin of pure cruelty.

The silence that had prevailed amongst his men broke suddenly as they searched quickly among the dead. The Sheik waited impa.s.sively, silent amidst the muttered imprecations and threats of vengeance of his followers as they laid beside him the six remains of what had been Diana's escort, slashed and mutilated almost beyond recognition. But it was he who noticed that the last terrible figure stirred slightly as it was laid down, and it was into his face, grown suddenly strangely gentle, that the dying Arab looked with fast-filming eyes. The man smiled, the happy smile of a child that had obtained an unexpected reward, and raised his hand painfully in salute, then pointed mutely to the south.

The Sheik caught his follower's nerveless fingers as they fell in his own strong grasp, and with a last effort the Arab drew his chief's hand to his forehead and fell back dead.

CHAPTER VIII

Slowly and painfully, through waves of deadly nausea and with the surging of deep waters in her ears, Diana struggled back to consciousness. The agony in her head was excruciating, and her limbs felt cramped and bruised. Recollection was dulled in bodily pain, and, at first, thought was merged in physical suffering. But gradually the fog cleared from her brain and memory supervened hesitatingly. She remembered fragmentary incidents of what had gone before the oblivion from which she had just emerged. Gaston, and the horror and resolution in his eyes, the convulsive working of his mouth as he faced her at the last moment. Her own dread--not of the death that was imminent, but lest the mercy it offered should be s.n.a.t.c.hed from her. Then before the valet could effect his supreme devotion had come the hail of bullets, and he had fallen against her, the blood that poured from his wounds saturating her linen coat, and rolled over across her feet. She remembered vaguely the wild figures hemming her in, but nothing more.

Her eyes were still shut; a leaden weight seemed fixed on them, and the effort to open them was beyond her strength. "Gaston," she whispered feebly, and stretched out her hand. But instead of his body or the dry hot sand her fingers had expected to encounter they closed over soft cushions, and with the shock she sat up with a jerk, her eyes staring wide, but, sick and faint, she fell back again, her arm flung across her face, shielding the light that pierced like daggers through her throbbing eye-b.a.l.l.s. For a while she lay still, fighting against the weakness that overpowered her, and by degrees the horrible nausea pa.s.sed and the agony in her head abated, leaving only a dull ache. The desire to know where she was and what had happened made her forget her bruised body. She moved her arm slightly from before her eyes so that she could see, and looked cautiously from under thick lashes, screened by the sleeve of her coat. She was lying on a pile of cushions in one corner of a small-tented apartment which was otherwise bare, except for the rug that covered the floor. In the opposite corner of the tent an Arab woman crouched over a little brazier, and the smell of native coffee was heavy in the air. She closed her eyes again with a shudder.

The attempted devotion of Gaston had been useless. This must be the camp of the robber Sheik, Ibraheim Omair.

She lay still, pressing closely down amongst the cushions, and clenching the sleeve of her jacket between her teeth to stifle the groan that rose to her lips. A lump came into her throat as she thought of Gaston. In those last moments all inequality of rank had been swept away in their common peril--they had been only a white man and a white woman together in their extremity. She remembered how, when she had pressed close to him, his hand had sought and gripped hers, conveying courage and sympathy. All that he could do he had done, he had shielded her body with his own, it must have been over his lifeless body that they had taken her. He had proved his faithfulness, sacrificing his life for his master's play-thing. Gaston was in all probability dead, but she was alive, and she must husband her strength for her own needs.

She forced the threatening emotion down, and, with an effort, controlled the violent shivering in her limbs, and sat up slowly, looking at the Arab woman, who, hearing her move, turned to gaze at her. Instantly Diana realised that there was no help or compa.s.sion to be expected from her. She was a handsome woman, who must have been pretty as a girl, but there was no sign of softness in her sullen face and vindictive eyes. Instinctively Diana felt that the glowing menace of the woman's expression was inspired by personal hatred, and that her presence in the lent was objectionable to her. And the feeling gave a necessary spur to the courage that was fast coming back to her. She stared with all the haughtiness she could summon to her aid; she had learned her own power among the natives of India the previous year, and here in the desert there was only one Arab whose eyes did not fall beneath hers, and presently with a muttered word the woman turned back to her coffee-making.

Diana's muscles relaxed and she sat back easily on the cushions, the little pa.s.sage of wills had restored her confidence in herself. She moved her hand and it brushed against her jacket, coming away stained and sticky, and she noticed for the first time that all one side and sleeve were soaked with blood. She ripped it off with a shudder and flung it from her, rubbing the red smear from her hands with a kind of horror.

The little tent was intensely hot, and there was a close, pungent smell that was eminently _native_ that she never experienced in the cool airiness and scrupulous cleanliness of Ahmed Ben Ha.s.san's tents. Her sensitive lip curled with disgust, all her innate fastidiousness in revolt. The heat aggravated a burning thirst that was parching her throat. She got up on to her feet slowly, and with infinite caution, to prevent any jar that might start again the throbbing in her head; but the effects of the blow were wearing off, and, though her head continued to ache, it did no more than that, and the sick, giddy feeling had gone completely. She crossed the tent to the side of the Arab woman.

"Give me some water," she said in French, but the woman shook her head without looking up. Diana repeated the request in Arabic, one of the few sentences she knew without stumbling. This time the woman rose up hastily and held out a cup of the coffee she had been making.

Diana hated the sweet, thick stuff, but it would do until she could get the water she wanted, and she put out her hand to take the little cup.

But her eyes met the other's fixed on her, and something in their malignant stare made her pause. A sudden suspicion shot through her mind. The coffee was drugged. What beyond the woman's expression made her think so she did not know, but she was sure of it. She put the cup aside impatiently.