We floated down into the rim of the eddy below the cattle, spread out, and endeavoured to force the drove up stream. We might as well have ridden against a floating log-jam. The mad, bellowing steers swam after their leader, moving in toward the vortex of the eddy. The half-blood Aberdeen-Angus, whom the cattle seemed to follow, was now on the inner border of the drove, the tangle of steers stretched in a circle around him. It was clear that in a very few minutes he would reach the centre, the mass of cattle would crowd down on him, and the whole bunch would go to the bottom. We determined to make another effort to break through this circle, and if possible capture the half-blood and force him out toward the shore. A more dangerous undertaking could not be easily imagined. The chances of driving this steer out were slight if we should ever reach him. The possibility of forcing a way in was remote, and if we succeeded in penetrating to the centre of the jam and failed to break it, we should certainly be wedged in and crushed. If Ump's head had been cool, I do not think he would ever have permitted me to join in such madness. We were to select a loose place in the circle, the Cardinal and El Mahdi to force an opening, and the Bay Eagle to go through if she could. We waited while the cattle passed, bellowing and thrashing the water,--an awful mob of steers in panic. Presently in this circle there was a rift where a bull, infuriated by the crowding, swam by, fighting to clear a place around him. He was a tremendous creature, glistening black, active and dangerous as a wild beast. He charged the cattle around him, driving them back like a battering ram. He dived and butted and roared like some sea monster gone mad. Ump shouted, and we swam into the open rift against this bull, Jud leading, and El Mahdi at his shoulder. The bull fighting the cattle behind him did not see us until the big sorrel was against him. Then he swung half around and tried to butt. This was the danger which we feared most. The ram of a muley steer is one of the most powerful blows delivered by any animal. For this reason, no bull with horns is a match for a muley. The driving power of sixteen hundred pounds of bone and muscle is like the ram of a ship. Striking a horse fair, it would stave him in as one breaks an egg shell. Jud leaned down from his horse and struck the bull on the nose with his fist, beating him in the nostrils. The bull turned and charged the cattle behind him. We crowded against him, using the mad bull for a great driving wedge. I have never seen anything in the world to approach the strength or the fury of this muley. With him we broke through the circle of steers forcing into the centre of the eddy. We had barely room for the horses by crowding shoulder to shoulder to the bull. The cattle closed in behind us like bees swarming in a hive.