faintly across the yellow stretches of desert.
"Well?" Daglish asked him impatiently.
Geoff smiled.
"Just a mirage," he told his companion. "They are funny things till you get used to them, and you have to come and live in this country for quite a while often before you get a chance. Before now I've seen a whole Turkish city rise up before me out of the desert, looking wonderfully realistic, with people moving about, and horses, and asses, and dogs in all directions. Then I've gone on a little way, or gone back, and the whole scene has vanished. That's a mirage. Some trick of the sun's rays playing upon the atmosphere spread out over the desert. How it's brought about beats me altogether; but it's real enough when one sees it, and equally elusive when one's moved from one's position. Let's walk our horses across here to the left; we needn't trouble to go downhill at all, for if you have seen the enemy horsemen out there in the open, they will most distinctly have seen you up here on this little bit of an eminence."
Leading their horses, they strode off some distance to their left, sinking ankle-deep into the sand at almost every stride. There were three of them by now, for Harmer, another of the Indian cavalry officers – the one who had come back to make his report – had joined them; and as they went, each one cast glances over his left shoulder, till of a sudden Daglish gave a cry of delight.
"I was beginning to doubt you, Keith," he said with energy; "but now, by James! you are right. That must have been a mirage, though I have never seen one before in all my life. The native village has gone completely; and look at those horsemen!"
They came to an abrupt halt, the three wheeling round at once and raising their glasses.
"Eh! What do you make of 'em?" Daglish said, when a minute had passed during which Geoff focused the distant horsemen carefully and watched them critically. "Turks, eh? Or Arabs?"
"A mixed force," Geoff told him promptly. "Arab horsemen, perhaps two or three hundred strong, and Turkish infantry behind them; there are no guns with them, so I take it that it's simply a reconnoitring force, or maybe it's a garrison, from some point lower down the river, retiring before us."
"Then the sooner we send back to our fellows the better," cried Daglish. "There's open ground before us, and the two troops could operate so as to drive in a blow at those fellows."
Pulling his notebook from his pocket he wrote a few hurried lines, and, having folded the "chit" up, he addressed it to his commanding officer.
"Take it back, Harmer," he ordered. "You can tell them that Keith and I will go on a little and make out those fellows a trifle more clearly."
A minute later the third of the officers was in his saddle and galloping back towards their comrades, whom they had left some distance away, halting at the bottom of this long sloping eminence. Then Geoff and Daglish climbed into their saddles and urged their horses forward, Geoff looking critically at the mount upon which his companion was riding.
"Better go easily, Daglish," he told him, "for that little horse of yours doesn't look as though he was fast, and I can tell you many of those Arab horsemen are superbly mounted. We can go on a little way, of course, and then, if it's the same to you, I'll push on still closer, for there's not a horse yonder that can even look at Sultan."
It was perhaps five minutes later when the two drew rein, for even though Daglish was full of energy and enthusiasm, and indeed was a brilliant cavalry officer, yet he was not devoid entirely of discretion. Though he was itching with eagerness to get to grips with the enemy, and to come to close quarters, he could not fail to realize the weight of the warning which Geoff had given him; nor, having seen that little exhibition which Sultan and his master had given them so close to the place of disembarkation, could he doubt that there were few who could come up to the magnificent Arab Geoff was riding.
"All right!" he told Geoff, a little reluctantly, as he pulled in his horse. "I'll stay here and keep my glasses on them, while you go on a little. Now, don't be reckless; for recollect you are of some value to the expedition, seeing that you speak the lingo."
Shaking his reins, Geoff set Sultan in motion, while Daglish watched him for a while as he cantered towards the enemy; then he threw up his glasses, and, fixing them upon the Arab horsemen, watched their waving lines, the chiefs who sat their horses in front of them, and one man in particular, who cantered slowly along their front – his white cloak thrown back, his dusky arm bare, the weapons he was carrying distinctly visible. It was fascinating to watch that gallant horseman, for a fine sight this Arab made. He pulled in his horse after a while in front of his men, and from the movements of his head it seemed as if he must be haranguing them; then of a sudden he stood in his stirrups and flung the pistol he was carrying high in the air, while an instant later there rolled musically across the desert the sound of shouting – a sound unfamiliar to Daglish's ears.
"Allah!" he heard; "Allah!" That weird, majestic, inspiring call of the Arab. It made the young officer almost twitch; made him admire those horsemen even more, and made him start violently when a second later he saw through his glasses that self-same chief swing his horse round, shield his eyes with one hand as he stared in Geoff's direction, and then set his horse going at a mad pace which promised to bring him rapidly up to him. Almost at the same instant the Turkish infantry – a mere handful of men – who had been hidden behind the horsemen almost completely, debouched into the open at their left, and at once the sharp rattle of rifle-fire came echoing across the desert. As for Geoff, he heard the sounds and saw that horseman. Little puffs of sand began to rise up all round him, while now and again something buzzed past his head, humming its way on into the distance.
"Near enough," he told himself coolly, pulling Sultan up, while he felt for his glasses; then, dropping his reins, he focused the enemy again, and took very careful stock of them. "Doubt if there are three hundred horsemen there," he thought; "two hundred is more like their number, and a mere handful of Turkish infantry I should say, though having infantry with them points to the fact that they are a garrison retiring up river. And what's that chief mean by riding out like that in front of all his people? Anyway, he's now between the infantry and me, and that will put a stop to those bullets."
If he could, Daglish would have shouted to his companion so far ahead, and for a while he was consumed with the fear that Geoff had failed to notice that single horseman, that magnificently mounted chief, who came galloping across the desert. Then he swung himself into the saddle, and, gripping his reins, sat motionless, watching the figure of his comrade.
Ah! Geoff was beginning to move a little. He had dropped his glasses, and, peering at him through his own, Daglish saw that he had opened the pouch containing his revolver.
"Confound the chap!" he exclaimed. "Does he mean to stay out there and have a single-handed encounter with that beggar? If I'd have thought that possible I'd have sent the idiot back long ago."
Then he dropped his glasses again and sat spellbound, peering across the desert, longing for Geoff's return, and yet hoping, in spite of himself, that the young officer who had so recently joined them would stand his ground, would face this Arab enemy, and would show right at the commencement of this coming campaign that an Englishman was not to be frightened easily.
"Steady does it!" Geoff was saying to himself as he watched the furious approach of the Arab. "By the time he gets up to me his horse will be winded, and he'll be considerably shaken; that will be my chance, and, by George! I'll take it. A captive at this stage would be a tremendous thing for the General; for once an Arab sees that the game is up, and once he realizes that rewards are given for information, he will speak, will speak the truth, indeed. That's one of the curious parts about these Arabs – they've no fondness for the Turks, though many of them will fight for them, seeing that we are heathen and the Turks are of the 'Faithful'; but, on the other hand, they are just as likely to turn against the
