He kept looking, because green was a great relief from the monotonous gray and black and brown of the hills.

It seemed to him after awhile that he saw a small splotch of dead white.
In the barren lands two things will show white in the distance; a white horse and a tent of white canvas.

Casey shifted his position and squinted long at the spot, then got up slowly with the help of a bush and took William by the rope.

William was on his feet, standing with head dropped, apparently half asleep.

Casey knew that William was simply waiting until he could no longer stand.
Together they wabbled down the sloping canyon side and over a grassy bottom to the trees, which were indeed juniper trees, but thriftier looking than their brethren of the dry places.