Very quickly Geoff gave him all the information he had been able to extract from the captured chief, and then, at a suggestion from the officer, the Arab was sent for, and presently appeared with an escort of sowars about him.

"If I may say so, sir," said Geoff, "I think we shall do far better by showing our trust in this prisoner and dismissing his escort. I do not assert that an Arab is to be trusted. As a general rule, speaking of those in Mesopotamia, he is certainly not; he will join the cause of the highest bidder, or he will leave any sinking ship if only he can discover the danger in which he is standing soon enough. But by making this man realize that we are not a sinking ship, and that his interests are best served by serving us, we shall be able to get from him not only information which he already has, but might even employ him to obtain further facts of importance. For that a liberal reward, to be paid some months hence, should be promised."

For a little while the Staff Officer regarded the chief sternly, and yet with interest. No Englishman could look at such man and fail to find in him much to attract attention. For, as we have said before, this Arab chief was an exceedingly fine specimen of Arab humanity. Tall and straight and austere-looking in his native costume, his features were refined and handsome. There was nothing of the negroid type about him; and indeed this man, dressed in European costume, might have made his appearance in the most exclusive parts of London, and one could guess that his features, his delicately shaped hands, his well-kept nails, his manners, indeed, would have rendered him by no means inferior to his fellows. The chief returned the officer's frank gaze with one just as frank, with one distinctly haughty, with a glance which told of courage, and pride, and also determination.

"Dismiss the escort," commanded the officer sharply, addressing the Indian officer in charge of them; "let them rest in the shade at the back of the Head-quarters hut. Now, Chief," he said, smiling at the captive, "sit down. Keith, ask him to make himself comfortable."

"The officer here wishes you to feel that you are a friend and not a captive," said Geoff at once, taking upon himself the liberty of somewhat enlarging upon his senior's pronouncement. "He invites you to sit down with us, and, as a chief of honour, he knows that by doing so you give your word that you will not attempt to escape, and that what shall be spoken between us will be the truth, and the truth only."

A beaming smile broke over the face of the chief instantly, and he nodded in friendly fashion to both officers; then, pulling a chair nearer, he sat down with an easy grace which proved beyond fear of refutation that if indeed he were a child of the desert, yet he had some knowledge of Western customs, and unlike his fellows was accustomed to a chair, and appreciated the comfort to be obtained by the use of it.

"My master," he told Geoff, "doubtless His Highness who sits there with us is a great chief in your country, and is one whose words should be honourably listened to. If he says that he desires Suliman as a friend rather than as a captive, and that at a time when he discovers this same Suliman a mere harmless and helpless prisoner, then, indeed, is he a man of great honour and liberality. And what should I say? I, who am a helpless, harmless captive, who am bid to sit as friend before him, and who thereby assents to join your forces. My master, from this day forward I am your man, sworn to your service, sworn to do my utmost for the British. If I depart from this saying, if it should happen that in later days I break my oath, then, indeed, may I be proclaimed to be a faithless scoundrel, one deserving of instant execution. My master, as a friend I sit before you, and I thank you for this great concession."

For more than an hour the three sat there in the shadow of the palms, Geoff acting as interpreter; and slowly, and little by little, as the Intelligence Officer asked questions which would never have occurred to Geoff, information of considerable value was extracted from the chief. Indeed, the latter was undoubtedly greatly delighted at the treatment afforded him—for to be kept a close captive had seemed to him inevitable. And partly by the judicious offer of a handsome reward—a small portion of which was to be paid within a month's time, so soon as he had produced results, and the remainder when the war was finished—together with the promise of certain allowances whilst he was with the British Expeditionary Force in Mesopotamia, the chief was led to give a most willing assent to aid his captors further.

"More than that, my master," he said eagerly enough, addressing Geoff while he looked across at the Staff Officer, "I can make even greater promises; for have you not honoured me much by thus making a friend of me rather than a captive? Listen, then! And as Allah hears us, treat this not as a promise, but as a plan to be carried out without doubt and of a certainty. You have treated me handsomely, and have made promises which will give me wealth if I but live to earn it. See, these men about me, these Indian horsemen, these British soldiers, these native troops whom you have brought across the water to fight the Turk and the Sultan and those white men—those unbelievers—who have joined your enemy! You pay those soldiers of yours, doubtless, my master; your British king has gold wherewith to fill their pockets?"

"Certainly, Chief," Geoff told him promptly. "Each man draws his regular pay and allowances. Every one of the soldiers you see here is a free man—free to join the army or not, just as he likes. But, once he has joined, he is paid just as a man who may work as a servant in one of your camps is paid, for the British king forces service upon no man."