In order to traverse the distance he had in mind, he was forced to move around several large rocks and bowlders, cross the small stream which flowed near the camp, and pick his way with the utmost care. Stillness was necessary above all things.

The darkness, while favorable in many respects, had its disadvantages, as was quickly proven. At the moment when he believed he was opposite the ponies, and, therefore, near them, he stepped upon a rolling stone, and despite his expertness, fell with a thump to the ground.

He was impatient with himself, and could hardly repress an angry exclamation, for a snuff from one of the animals showed how alert they were to the slightest disturbance.

“The next thing to be done,” reflected Nick, “is to shoot off my rifle; then the job will be in fine shape.”

But, so far as he could judge, no harm had been done, and he pressed on with greater care than before. It took considerable time to reach the desired point, but it was attained at last. The horses were in a direct line with the camp fire, and he began stealing toward them.

This was the time for extreme caution, for, if the least noise betrayed him, all chance of success would be destroyed. It may be doubted, however, whether either of the Texans himself could have carried out the plan more skilfully than did Nick Ribsam.

When he halted, he was not fifty feet from his own animal, and had approached him so silently that no one of the ponies was disturbed. They were silent, as if asleep.

But at the moment when Nick was motionless and carefully studying the dark figures, whose upper parts were shown against the background of the fire, he saw one of the animals raise his head higher than the others and emit a snuff, louder than ever.

“It couldn’t be that I caused that,” was the decision of Nick, who was in a crouching posture; “it’s something else that alarmed them, and, whatever it is, it is closer to them than I am.”