Springing on the backs of the close-packed runaways nearest him, Treve tore forward to head off the stampede. He reached ground in front of the onrushing wall of sheep, at a spot where the bank rose high on the right side and where the pit-like top of the coulée fell in almost sheer precipice for fifty feet on the left. Wheeling to face his panic-charges, Treve barked thundrously. But before he completed the bark or the wheel, the sheep were upon him. Unable to stop their own gallop and pushed on resistlessly by those behind, the front line smote against the whirling collie with the force of a catapult. Knocked clean off his feet, Treve rolled writhingly to one side, to avoid being trampled to death. Over the coulée-lip he rolled; and crashed down the steep side of the gorge. He landed on his back in the midst of a brush-fire, at the bottom; breathless and half-stunned. Joel Fenno cried aloud, as he saw the dog reel over the cliff-edge. He ran forward, kicking aside the encumbering sheep that tangled his progress. He reached the lip of the gorge just in time to see the dog come charging up the precipitous slope, his beautiful coat smeared by soot and with sparks still crackling here and there in it. Gaining the summit, Treve wasted not a second; but forged ahead toward the front of the stampede. He was too late. The few seconds of leeway had permitted the galloping sheep to reach the clearing, unchecked. The two black collies were far behind, with the main flock. Nor were any of the men far enough forward to stem the rush. As a result, the first hundred sheep struck the cleared space at a speed which they could not check. Across the narrow highroad they hurled themselves blindly, shoved on by those behind them. They crashed into a tall barbed wire fence on the far side of the road;--the boundary fence of the Triple Bar. They hit it with the impact of a battering ram. The front rank were ripped and torn on the jagged wires. But their weight and their blind momentum sagged the wire and snapped the nearest worm-gnawed post. A whole panel of fence gave way; falling obliquely backward, almost onto the grass. Through the gap and over the bodies of their wire-entangled comrades, swept scores of sheep. On they rushed; scattering into a ragged fan-shaped formation as they found themselves in the open range. Joel Fenno went green-white with horror. Mack groped feebly for a gun at his belt. But, as usual, his gun hung forgotten from a peg in his bedroom. Indeed the whole party could not muster any weapon more lethal than a staff. The shepherds involuntarily came to a dazed standstill. But Treve did not hesitate, for the space of an instant. Hurdling the sheep which struggled in the strands of wire, he cleared the low-slanted broken panel and sprang into the forbidden range of the enemy. His singed coat almost sweeping the ground as he sped, he bore down upon the hundred strays.