But it was the boys who suffered most. None but hardy youngsters had been chosen for the drive, but their young endurance could not help them in personal combat with these grown men; and personal combat was what it came to wherever a boy stood or sat near a desirable mule. The odd thing was that every man and boy succeeded in getting away. Hats were lost. Shirts were torn to shreds, exposing skins, white and brown, to the merciless sun. Even the half-breed and the Mexican, dropping their quarrel as unreasonably as they had begun it, each bleeding from half-a-dozen small wounds, finally galloped off after the others. And when these last were gone, and the dust was billowing up behind them, something less than two minutes had passed since the guide had pointed southward. The Palos River is probably the most uninviting stream in the Southwest. It was at this time sluggish and shallow. The water was so rich with silt that a pailful of it, after standing an hour, would deposit three inches of mud. The banks were low and of the same gray sand as the desert, excepting that a narrow fringe of green announced the river to the eye. It was into and through this fringe that the first rider plunged. It had been a long two-hour ride, and the line straggled out for more than a mile behind him. But he was not interested in his companions. His eyes were fixed on the broad yellow river-bed with the narrow yellow current winding through it. Drinking could not satisfy him. He wanted to get into the water, and feel his wet clothes clinging about him, and duck his face and head under, and splash it about with his hands. His mount needed no lash to slip and scramble down the bank and spurt over the sand. The animal was so crazily eager that he stumbled in the soft footing and went to his knees. But the rider sailed on over his head, and with a great shout, arms and legs spread wide, he fell with a splash and a gurgle into the water. The mule regained his feet and staggered after him, and then the two of them, man and beast, rolled and wallowed and splashed, and drank copiously. The second man reached the bank on foot, for his mule had fallen within sight of the promised land. He paused there, apparently bewildered, watching his fortunate comrade in the water. Then, with dazed deliberation, he removed his clothes, piled them neatly under a bush, and walked out naked, stepping gingerly on the heated sand. But halfway to the channel a glimmer of intelligence sparkled in his eyes, and he suddenly dashed forward and threw himself into the water. One by one the others came crashing through the bushes, and rode or ran down the bank, swearing, laughing, shouting, sobbing. And not one of them could have told afterward whether he drank on the upstream or the downstream side of the mules.