He had seen her also and was shouting to her, of this she was sure, for although the sound of his voice was lost in the tumult, she could perceive his gesticulations when the lightning flared, and even the movement of his lips.
Wondering vaguely what a white boy could be doing in such a place and very glad at the prospect of his company, Rachel began to advance towards him in short rushes whenever the lightning showed her where to set her feet. She had made two of these rushes when from the violence and character of his movements at length she understood that he was trying to prevent her from coming further, and paused confused.
Another instant and she knew why. Some hundreds of yards above her the river bed took a turn, and suddenly round this turn, crested with foam, appeared a wall of water in which trees and the carcases of animals were whirled along like straws. The flood had come down from the mountains, and was advancing on her more swiftly than a horse could gallop. Rachel ran forward a little way, then understanding that she had no time to cross, stood bewildered, for the fearful tumult of the elements and the dreadful roaring of that advancing wall of foam overwhelmed her senses. The lightnings went out for a moment, then began to play again with tenfold frequency and force. They struck upon, the nearing torrent, they struck in the dry bed before it, and leapt upwards from the earth as though Titans and gods were hurling spears at one another.
In the lurid sheen of them she saw the lad leap from his rock and rush towards her. A flash fell and split a boulder not thirty paces from him, causing him to stagger, but he recovered himself and ran on. Now he was quite close, but the water was closer still. It was coming in tiers or ledges, a thin sheet of foam in front, then other layers laid upon it, each of them a few yards behind its fellow. On the top ledge, in its very crest, was a bull buffalo, dead, but held head on and down as though it were charging, and Rachel thought vaguely that from the direction in which it came in a few moments its horns would strike her. Another second and an arm was about her waist--she noted how white it was where the sleeve was rolled up, dead white in the lightning--and she was being dragged towards the shore that she had left. The first film of water struck her and nearly washed her from her feet, but she was strong and active, and the touch of that arm seemed to have given her back her wit, so she regained them and splashed forward. Now the next tier took them both above the knees, but for a moment shallowed so that they did not fall. The high bank was scarce five yards away, and the wall of waters perhaps a score.