Sheila nibbled at her lips in vexation. Again, convinced that the pony was merely exhibiting obstinacy, she applied the quirt to its flanks. The animal floundered and struggled, but did not move out of its tracks.

Evidently something had gone wrong. Sheila peered over the pony’s mane into the water, which was still clear in spite of the pony’s struggling, and sat suddenly erect, stifling cry of amazement. The pony was mired fast! Its legs, to a point just above the knees, had disappeared into the river bottom!

As she straightened, a chilling fear clutching at her heart, she felt the cold water of the river splashing against her booted legs. And now knowledge came to her in a sudden, sickening flood. She had ridden her pony fairly into a bed of quicksand!

For some minutes she sat motionless in the saddle, stunned and nerveless. She saw now why there were no tracks or hoof prints leading down into the crossing. She remembered now that Duncan had warned her of the presence of quicksand in the river, but the chance of her riding into any of it had seemed to be so remote that she had paid very little attention to Duncan’s warning. Much as she disliked the man she would have given much to have him close at hand now. If he had only followed her!

She was surprised at her coolness. She realized that the situation was precarious, for though she had never before experienced a quicksand, she had read much of them in books, and knew that the pony was hopelessly mired. But it seemed that there could be no immediate danger, for the river bottom looked smooth and hard; it was grayish-black, and she was so certain that the footing was good that she pulled her feet out of the stirrups, swung around, and stepped down into the water.

She had stepped lightly, bearing only a little of her weight on the foot while holding to the saddle, but the foot sank instantly into the sand and the water darkened around it. She tried again in another spot, putting a little more weight on her foot this time. She went in almost to the knee and was surprised to find that she had to exert some little strength to pull the foot out, there was so great a suction.

With the discovery that she was really in a dangerous predicament came a mental panic which threatened to take the form of hysteria. She held tightly to the pommel of the saddle, shutting her eyes on the desolate world around her, battling against the great fear that rose within her and choked her. When she opened her eyes again the world was reeling and objects around her were strangely blurred, but she held tightly to the saddle, telling herself that she must retain her composure, and after a time she regained the mastery over herself.

With the return of her mental faculties she began to give some thought to escape. But escape seemed to be impossible. Looking backward toward the bank she had left, she saw that the pony must have come fifteen or twenty feet in the two or three plunges it had made. She found herself wondering how it could have succeeded in coming that distance. Behind her the water had become perfectly clear, and the impressions left by the pony’s hoofs had filled up and the river bottom looked as smooth and inviting as it had seemed when she had urged the pony into it.

In front of her was a stretch of water of nearly the same width as that which lay behind her. To the right and left the grayish-black sand spread far, but only a short distance beyond where she could discern the sand there were rocks that stuck above the water with little ripples around them.

The rocks were too far away to be of any assistance to her, however, and her heart sank when she realized that her only hope of escape lay directly ahead.