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."
"Then listen further, my master. There are in my tribe perhaps a thousand men, all well found with horses, all with great knowledge of this country, and not one of whom would fail to fight if the opportunity came to him. Give them money, pay them the same amount that you pay these Indian soldiers, and find them in certain necessaries and in ammunition. Promise this, and trust your slave still further. For then he will ride out to them, and if they be not willing to return with him and join forces with these soldiers, he himself will return – whether they wish it or not – and will render himself up again to you. My master, I am a man of honour, and this thing I will do, as Allah hears me."
The suggestion made by the captured chief was one which, naturally enough, needed much consideration, and, also, the consent of higher authority; yet, so excellent did the plan seem, and so clearly was Geoff able to put it before the Intelligence Officer, that by the following morning it was adopted, and, a good horse having been handed to the chief, and weapons also, he was allowed to ride out of the camp in search of his followers.
"Of course we may, or we may not, see him back," said the Staff Officer somewhat sceptically. "You tell me, Keith, that Arabs are not to be trusted, and that is a tale I have heard often enough before. Yet I have little doubt that many of them are just as trustworthy as people in our country."
"Just!" Geoff agreed with him promptly, if not warmly, for during his short residence in Mesopotamia, when he had been with Major Joe Douglas, he had met with, and lived with, more than one tribe of Arabs, with whom he had become more than usually friendly. Moreover, he had known them to be absolutely trustworthy; and though, during this coming conflict, some might already have sided with the Turks – who were their nominal rulers – and though, as the campaign went on, it might happen that they would leave that service and join the British – for such is a habit of nomadic Arab tribes – yet that did not prove them to be utterly devoid of trust or of honour.
"If I know a man at all, sir," he said respectfully, "I know this chief, whom I was instrumental in capturing. He has given us his word of honour, and he has called upon Allah to witness the words which he has spoken. That will compel him to carry out his promises whether he wills it or not; and should it happen that his followers arrest him, and do their utmost to prevent his return, yet I feel sure that he will make every effort to come back to us."
As a matter of fact, some three days later, when the embarkation of the British Expeditionary Force was completed, and the troops had settled down in their camps beside the river, the outposts – placed well beyond the encampment – reported a large column of horsemen approaching. The information was brought to Head-quarters, and within five minutes of its arrival that same Intelligence Officer had sent a hurried message to our hero.
"Get on your horse at once, Keith," he told him, "and come along with me. This force approaching may be our friend the chief bringing in his followers or it may be an enemy force come to try conclusions with us. If I happened to be an officer in the Indian Horse I rather think I should hope for the latter, for those boys are dying for more fighting. As it is, I trust that it will be the chief, and that he'll bring with him a lot of useful fellows. Horsemen used to the country and to the tricks of the Turks will be a valuable acquisition, and we shall be able to make the most of them."
Quickly mounting the fretful Sultan, Geoff was ready within a few minutes, and, together with the Intelligence Officer, made rapid progress to the outposts. Then, fixing his glasses to his eyes, he carefully scrutinized the force approaching across the desert. A tall figure in flowing robes, riding at their head, was without doubt the chief who had given them his promise, and, having reported this fact to the Intelligence Officer, the two of them rode out to meet the cavalcade approaching. Then they led them back into the camp, and within an hour the Arabs had settled down as if they had never been anything else but a portion of the British Expeditionary Force destined to advance so far up the River Tigris.
Two days later the camp broke up, and, with a naval flotilla steaming beside them up the river, they marched on Basra, which town they occupied, after meeting with only small resistance. They were now approaching the confluence of the Rivers Tigris and Euphrates, and were, indeed, within striking distance of that portion of the desert which, in days long gone by, was known as the Garden of Eden, where the toil of the inhabitants then living in those parts had converted what may have been a desert in their earlier days into a smiling garden the fame of which has descended through the ages. Yet now it was a desert, a sandy, gravelly stretch of dried-up, waterless, and inhospitable desert, peopled but sparsely, and for the most part only along the actual banks of the river, where the moisture, finding its way into the soil on either side, kept it fertile, and where grew a thick belt of palms, descending past Basra to the open sea. There were marshes, too, for the River Euphrates in particular, which traverses a flat country, has changed its course through the ages on numerous occasions. Some particular course may remain open for a considerable period, and have the appearance of being the main channel, yet always there are overflows, and often enough such a main channel is silted up with the dirt and debris coming from higher parts of the desert; then the water, bursting over the low banks, and particularly the southern bank, has gouged some other channel for itself, or has widened out into broad stretches of marsh – perhaps only two feet in depth – leaving no semblance of the river channel.
"It's there, amongst the marshes, that the Turks lie hidden," the chief told Geoff that evening. "Of their numbers and of their exact positions I know nothing, yet the rumour has reached me that they are there, and that soon they will attempt to come in behind the British and attack them. It were well, my master, if some of those ships that I see floating upon the water, and in particular some of the smaller ones, were sent into the marshes. There are channels deep enough to take them, and if careful search were made it may be that the Turkish enemy would be discovered."
Geoff was not such a young soldier that he could not at once perceive the importance of the information
