The day was one of flooding sunlight, warm and golden. Winter seemed far away, and only the dry grass made it possible to say, "This is autumn." The air was without dust or moisture—crystalline, crisp, and deliciously invigorating.

The girl turned to her brother with radiant face. "This is living! Isn't it good to escape that horrid little town?"

"You'd suppose in an air like this all life would be clean and sweet," he replied. "But it isn't. The trouble is, these people have no inner resource. They lop down when their accustomed props are removed. They come from defective stock."

The half-breed guide had the quality of his Indian mother—he knew when to keep silence and when to speak. He led the way steadily, galloping along on his little gray pony, with elbows flapping like a rooster about to take flight.

There was a wonderful charm in this treeless land, it was so lonely and so sinister. It appealed with great power to Curtis, while it appalled his sister. The solitary buttes, smooth of slope and grotesque of line; the splendid, grassy hollows, where the cattle fed; the burned-up mesas, where nothing lived but the horned toad; the alkaline flats, leprous and ashen; the occasional green line of cottonwood-trees, deep sunk in a dry water-course—all these were typical of the whole vast eastern water-shed of the continental divide, and familiar to the young officer, for in such a land he had entered upon active service.

It was beautiful, but it was an ill place for a woman, as Jennie soon discovered. The air, so dry, so fierce, parched her skin and pinched her red lips. The alkali settled in a gray dust upon her pretty hair and entered her throat, increasing her thirst to a keen pain.

"Oh, George! here is a little stream," she cried out.

"Courage, sis. We will soon get above the alkali. That water is rank poison."

"It looks good," she replied, wistfully.

"We'll find some glorious water up there in that clump of willows," and a few minutes' hard riding brought them to a gurgling little brook of clear, cold water, and the girl not merely drank—she laved away all traces of the bitter soil of the lower levels.