II
THEA'S life at the Ottenburg ranch was simple and full of light, like the days themselves. She awoke every morning when the first fierce shafts of sunlight darted through the curtainless windows of her room at the ranch house. After breakfast she took her lunch-basket and went down to the canyon. Usually she did not return until sunset.
Panther Canyon was like a thousand others—one of those abrupt fissures with which the earth in the Southwest is riddled; so abrupt that you might walk over the edge of any one of them on a dark night and never know what had happened to you. This canyon headed on the Ottenburg ranch, about a mile from the ranch house, and it was accessible only at its head. The canyon walls, for the first two hundred feet below the surface, were perpendicular cliffs, striped with even-running strata of rock. From there on to the bottom the sides were less abrupt, were shelving, and lightly fringed with piñons and dwarf cedars. The effect was that of a gentler canyon within a wilder one. The dead city lay at the point where the perpendicular outer wall ceased and the V-shaped inner gorge began. There a stratum of rock, softer than those above, had been hollowed out by the action of time until it was like a deep groove running along the sides of the canyon. In this hollow (like a great fold in the rock) the Ancient People had built their houses of yellowish stone and mortar. The over-hanging cliff above made a roof two hundred feet thick. The hard stratum below was an ever lasting floor. The houses stood along in a row, like the buildings in a city block, or like a barracks.
In both walls of the canyon the same streak of soft rock
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