The disdainful Mahratta subaltern looked round him from the doorstep of the house in which he and a few of his brother officers had taken up their quarters, and to which at that moment his chum Geoff had paid a visit. And well might the youthful and disgusted Phil have turned up his nose, have scoffed, and have shown the most infinite displeasure, for rains had set in since the occupation of Kurnah, and the whole country-side was soaked. That smooth, sandy, and gravelly desert was covered a foot deep in sticky, sandy mud, different from any mud encountered elsewhere; mud which clung to the boots, which piled up on the feet of those who trudged about the camp, and who must needs therefore carry about with them so much extra weight. A hot, stifling mist hung over the country and blotted out the River Tigris. For, bear in mind, the Expedition had now advanced beyond the junction of the Euphrates and the Tigris Rivers, and had camped on the banks of the latter. Time was, centuries before, when these two historic rivers had come together in the neighbourhood of Kurnah--the little town now captured--where the country-side was drained, and fertile, and productive, and where, no doubt, date-palms had offered grateful shade, and patches of green had relieved the dull, dirty yellow of the desert. But that was in days gone by. Now, a change in the course of the River Euphrates--a river which, like many a one in China, changes its course in the most fickle and unforeseen manner--had cut a channel for itself farther to the south, where it now met the Tigris. "Garden indeed!" The place was a muddy swamp, set amidst the most depressing surroundings. "Not so very cheerful," Geoff had to agree, as he puffed at a cigarette and smiled at the indignant Philip; "but then we're campaigning, my dear fellow, and soldiers should take things as they come, and not grouse and grumble." "Shut up!" Philip told him. "None of your Head-quarters airs for me! What's doing?" It was always the way with Philip to demand of his chum what movements might be expected, as if indeed, though attached to the Head-quarters, Geoff was likely to be in the confidence of his seniors. Yet he knew something of their intentions at times, and knew well enough that further movement was anticipated. "You see, it's like this," he told Philip, there being no one else about. "The party we sent off along the Karun River and the pipe-line into Persia have seized Ahwaz, and have secured the oil-supply for our battleships. Just look at this map I am making in the mud! Rather a good place for drawing one, ain't it? Now, here's the Tigris and Kurnah, and there are the swamps that we went into with Commander Houston. By the way, glad to hear that he's doing well. He's on his way to India now, and good reports have been received about him. Well, there are the marshes."