"You are mistaken." She could not repress a smile over the expression of disappointment on his face. But without giving him any further satisfaction she urged her pony forward, leaving him standing beside the corral gates watching her with a frown. She smiled many times while riding toward the river, thinking of his discomfiture, reveling in the thought that for once she had shown him that she resented the attitude of familiarity which he had adopted toward her. She sat erect in the saddle, experiencing a feeling of elation which brought the color into her face and brightened her eyes. It was the first time since her arrival at the Double R that she had been able to ride out alone, and it was also the first time that she really appreciated the vastness and beauty of the country. For the trail to the river, which she had decided she would follow, led through a fertile country where the bunch grass grew long and green, the barren stretches of alkali were infrequent, and where the low wooded hills and the shallow gullies seemed to hint at the mystery. Before long the depression which had made her life miserable had fled and she was enjoying herself. When she reached the river she crossed it at a shallow and urged her pony up a sloping bank and out upon a grass plain that spread away like the level of a great, green sea. Once into the plain, though, she discovered that its promise of continuing green was a mere illusion, for the grass grew here in bunches, the same as it grew on the Double R side of the river. Yet though she was slightly disappointed she found many things to interest her, and she lingered long over the odd rock formations that she encountered and spent much time peering down into gullies and exploring sand draws which seemed to be on every side. About noon, when she became convinced that she had seen everything worth seeing in that section of the country, she wheeled her pony and headed it back toward the river. She reached it after a time and urged her beast along its banks, searching for the shallow which she had crossed some time before. A dim trail led along the river and she felt certain that if she followed it long enough it would lead her to the crossing, but after riding half an hour and encountering nothing but hills and rock cliffs she began to doubt. But she rode on for another half hour and then, slightly disturbed over her inability to find the shallow, she halted the pony and looked about her.