“We've got to chance it. There's no water here, and no springs on the upper range where we can drive sheep; we've got to go round under the Star.”

“That's so,” replied August. His fears needed confirmation, because his hopes always influenced his judgment till no hope was left. “I wish I had brought Zeke and George. It'll be a hard drive, though we've got Jack and Mescal to help.”

Hot as it was August Naab lost no time in the start. Piute led the train on foot, and the flock, used to following him, got under way readily. Dave and Mescal rode along the sides, and August with Jack came behind, with the pack-burros bringing up the rear. Wolf circled them all, keeping the flanks close in, heading the lambs that strayed, and, ever vigilant, made the drive orderly and rapid.

The trail to the upper range was wide and easy of ascent, the first of it winding under crags, the latter part climbing long slopes. It forked before the summit, where dark pine trees showed against the sky, one fork ascending, the other, which Piute took, beginning to go down. It admitted of no extended view, being shut in for the most part on the left, but there were times when Hare could see a curving stream of sheep on half a mile of descending trail. Once started down the flock could not be stopped, that was as plain as Piute's hard task. There were times when Hare could have tossed a pebble on the Indian just below him, yet there were more than three thousand sheep, strung out in line between them. Clouds of dust rolled up, sheets of gravel and shale rattled down the inclines, the clatter, clatter, clatter of little hoofs, the steady baa-baa-baa filled the air. Save for the crowding of lambs off the trail, and a jamming of sheep in the corners, the drive went on without mishap. Hare was glad to see the lambs scramble back bleating for their mothers, and to note that, though peril threatened at every steep turn, the steady down-flow always made space for the sheep behind. He was glad, too, when through a wide break ahead his eye followed the face of a vast cliff down to the red ground below, and he knew the flock would soon be safe on the level.

A blast as from a furnace smote Hare from this open break in the wall. The air was dust-laden, and carried besides the smell of dust and the warm breath of desert growths, a dank odor that was unpleasant.

The sheep massed in a flock on the level, and the drivers spread to their places. The route lay under projecting red cliffs, between the base and enormous sections of wall that had broken off and fallen far out. There was no weathering slope; the wind had carried away the smaller stones and particles, and had cut the huge pieces of pinnacle and tower into hollowed forms. This zone of rim merged into another of strange contrast, the sloping red stream of sand which flowed from the wall of the canyon.

Piute swung the flock up to the left into an amphitheatre, and there halted. The sheep formed a densely packed mass in the curve of the wall. Dave Naab galloped back toward August and Hare, and before he reached them shouted out: “The waterhole's plugged!”

“What?” yelled his father.

“Plugged, filled with stone and sand.”

“Was it a cave-in?”