"Well done, Keith!" he said in that sharp, commanding tone of his. "Take a man with you, and get a rifle. Quick with it! for those Turks will be clear of the island within a few minutes. Here, Smith! You're one of my best shots. Overboard with you!" There were spare rifles lying in the open cabin of the motor-boat, and beside them clips of cartridges. Geoff instantly seized one of the weapons, and filled a pocket with ammunition; then he dropped overboard, while the man who had been called joined him within half a minute with a grin of expectation, while on the faces of his comrades there was a look almost of envy. "Come!" said Geoff, wading through the water and finding the ground at the bottom as he had expected--hard, and giving firm foothold. Indeed, it would appear that the wide swamps they were now traversing, and which seemed to be composed of practically stagnant water, were stirred and swept now and again by eddies from the main stream. Perhaps in those violent gales, which every now and again sweep across Mesopotamia, the waters from the Euphrates are driven into the marsh lands, and, instead of flowing slowly and almost imperceptibly across them, filtering through them, as it were, they rush and sweep through every channel, heaping islands of mud here and there where there happen to be eddies, and carrying on vast accumulations of ooze and slime to other quarters. No doubt, too, in dry seasons, when the Shatt-el-Arab has fallen considerably, and the depth of the water in the main stream is much reduced, the waste of water lying at such a time across these marsh lands drains away, leaving a glistening, sandy desert. In any case, there was good going at this spot, and Geoff and his comrade made the most of it. Wading up beside the island, they advanced, within a couple of minutes, some yards towards the upper end, to which the Turkish launch was fast approaching. "In here," said Geoff, seeing an opening between some reeds where the bank jutted out a little and formed an angle or depression. "Now cut some of the reeds away with your knife, so as to give you a good field of fire and clear vision." "Make ready!" they heard the Commander call to them gently, just after they had got into position, and, turning to look at the motor-boat, they saw that she had moved farther out from the island, and was now lying end-on, her bows presented to the spot where the enemy was to be expected.