They speedily showed what their intentions were. In less than a minute after the lasso was fastened, one of the Apaches caught hold of it and slid down through the opening so rapidly, that it looked as if he had lost his hold and dropped out of sight. A second did precisely the same thing; then a third, fourth and fifth, until only one warrior was left above ground.

“Oh! I hope he’ll go,” whispered Fred to himself; “and then I can do something big.”

But the Apaches had evidently concluded that it would be an imprudent arrangement not to leave any of their friends on guard—not because they expected any interference from outside parties, but to provide against accident. If the lasso should fail them at a critical moment, they would be in a bad predicament, cut off from all means of getting out, as the skylight was the only avenue known to them, while, if a comrade remained above, all such danger would be escaped. Their purpose had been to send the five warriors down into the cave to attend to the case of the parties there.

The redskins were now down below and the whole thing was put in shape for operations to begin. All that remained was to find their man, and Fred could not tell what the prospects of success were in that direction; but he was almost ready to believe that they were all that the Indians could ask. The sixth Apache, who remained visible, took matters very comfortably. He stretched himself flat upon the ground, with his head hanging almost in the opening, so that he could catch every sound that came up from below. It was plain that he expected to be called upon to render important service, and he did not intend to let a signal escape him.

The hour that succeeded made little change in the situation. The action of this redskin showed that he occasionally received and sent messages—most probably by the subterranean telegraph—but he shifted his position very little. While he was thus engaged, Fred Munson was intently occupied with another scheme, and he had speedily wrought himself into a high pitch of excitement.

“I believe I can do it,” he muttered, more than once, as he revolved the desperate scheme in his mind; but, whatever his plan was, he waited in the hope that fortune would appear more propitious.

When the Apache had sat thus for some time, he changed his position. He had been lying with his side toward the lad, but now he sat up, with his back to him, and as close to the edge of the opening as was prudent, while he held the lasso in his hand, like the fisherman on the bank of a stream, who patiently waits and is sensitive to the slightest nibbling at the other end of his line.

He had scarcely settled himself in this position when Fred Munson changed his own. Rising from the ground where he had lain so long, he stepped over the ridge, and advanced directly toward the redskin, who harbored no suspicion that there was any of his race in his neighborhood. The plan the lad had resolved upon required nerve, resolution and quickness. He stepped as lightly as was consistent with speed until he had passed half the distance, when he began to slacken his gait and to proceed with greater caution than ever.

All depended upon his ability to keep from being heard or detected. Of course, he had no wish to engage in a fight with one of these fierce warriors, but he was prepared, even for that. His hand rested upon the hilt of his revolver, so that he could whip it out at an instant’s warning and discharge it, as he meant to do if necessary.

It was while he was yet some distance from the redskin that Fred felt that his position was one of frightful peril. His foe had his rifle within easy reach, and, if he turned too soon, he could pick off his young assailant before he should arrive within striking distance,—but each moment raised the hopes of the lad.