ton he noted a faltering, a deeper lowering of the head. When his hoofs struck a loose rock he no longer had the easy recoil of the morning. He staggered like a graceful yacht chopped by a cross-current. Now down the slope, now back to the roar of the Asper once more, for there the going was most level, but always the strides were shortening, shortening, and the head of the stallion nodded at his work.
All that was seen by Mark Retherton through his glasses, though they were almost close enough now to see details through the naked eye. He turned in the saddle to the posse, grim faces, sweat and dust clotted in their moustaches, their faces drawn and gray with streaks over the nose and under the eyes where perspiration ran. They rode crookedly, now, for seventy miles at full speed had racked them, twisted them, cramped their muscles. Scotty kept his head tilted far back, for his spinal column seemed about to snap. Walsh leaned to his right side which a tormenting pain drew at every stride, and Hendricks cursed in gasps through a wry mouth.
It had been an hour since Mark Retherton last spoke, and when he attempted it now his voice was as hoarse as a croaking frog.
“Boys, buck up! He's done! D'ye see the black laborin'. D'ye see it? Hey, Lew, Garry, we've got the best hosses among us three. Now's the time for a spurt, and by God, we'll run him down. I'm startin!”
He made his word good with an Indian yell and a
