From this perch he had made a magnificent spring--Slone estimating it to be forty feet--but he had missed the stallion. There were Wildfire's tracks again, slow and short, and then deep and sharp where in the impetus of fright he had sprung out of reach. A second leap of the lion, and then lessening bounds, and finally an abrupt turn from Wildfire's trail told the futility of that stalk. Slone made certain that Wildfire was so keen that as he grazed along he had kept to open ground. Wildfire had run for a mile, then slowed down to a trot, and he had circled to get back to the trail he had left. Slone believed the horse was just so intelligent. At any rate, Wildfire struck the trail again, and turned at right angles to follow it. Here the forest floor appeared perfectly level. Patches of snow became frequent, and larger as Slone went on. At length the patches closed up, and soon extended as far as he could see. It was soft, affording difficult travel. Slone crossed hundreds of deer tracks, and the trail he was on eventually became a deer runway. Presently, far down one of the aisles between the great pines Slone saw what appeared to be a yellow cliff, far away. It puzzled him. And as he went on he received the impression that the forest dropped out of sight ahead. Then the trees grew thicker, obstructing his view. Presently the trail became soggy and he had to help his horse. The mustang floundered in the soft snow and earth. Cedars and pinyons appeared again, making travel still more laborious. All at once there came to Slone a strange consciousness of light and wind and space and void. On the instant his horse halted with a snort. Slone quickly looked up. Had he come to the end of the world? An abyss, a canyon, yawned beneath him, beyond all comparison in its greatness. His keen eye, educated to desert distance and dimension, swept down and across, taking in the tremendous truth, before it staggered his comprehension. But a second sweeping glance, slower, becoming intoxicated with what it beheld, saw gigantic cliff-steps and yellow slopes dotted with cedars, leading down to clefts filled with purple smoke, and these led on and on to a ragged red world of rock, bare, shining, bold, uplifted in mesa, dome, peak, and crag, clear and strange in the morning light, still and sleeping like death. This, then, was the great canyon, which had seemed like a hunter's fable rather than truth. Slone's sight dimmed, blurring the spectacle, and he found that his eyes had filled with tears. He wiped them away and looked again and again, until he was confounded by the vastness and the grandeur and the vague sadness of the scene. Nothing he had ever looked at had affected him like this canyon, although the Stewarts had tried to prepare him for it.