By the time that Bob had realized this necessity for intervention he was half a mile south of the position, in a wider stretch of the gorge. He wheeled round, flew back at full speed through the bottle-neck, then wheeled again at the northward end. It seemed to him that the crackling of rifle fire was now more continuous: the Pathans had in fact taken heart on seeing the machine soaring high above them, and were defending themselves with renewed vigour. The chota sahib was with them! They knew not what he could do for them, but his mere presence gave them hope and courage. Bob saw that in order to carry out his plan successfully he must descend. He had had no practice in bomb dropping. No amount of theoretical knowledge of the velocity of falling bodies under the action of gravity, or of the curve made by a body moving under both horizontal and vertical forces, could avail him now. There was great risk of the aeroplane or its occupants being hit if the Kalmucks fired at them, but he felt that he must take his chance. Swooping down, and reducing speed at the same time, he steered so as to pass, at the height of a few hundred feet, as exactly as possible over the heads of the party skirmishing up the hill-side. They were in loose order. At closer quarters Bob was now able to see that they were taking advantage of all the cover furnished by the crags and protuberances of the rocky slope. Steering with one hand, he called to Fazl to give him one of the tins, which he poised in his other hand. He still felt a shrinking from bloodshed, and instead of dropping the bomb in the midst of the Kalmucks, he waited until he had just passed the man nearest to the Pathans, then let it fall. In a few seconds it struck the ground. There was a sharp report, and Fazl, looking back, cried out that the Kalmucks were almost hidden by an immense cloud of dust. The sound of rifle fire ceased, and a strange quiet fell upon the gorge. "Have they stopped?" asked Bob. "Yes, sahib. One has gone back: they are talking among the rocks." "They’ve got something to talk about," thought Bob.