Perhaps, after all it was only some loose stone falling, or a small animal brushing past, that had caught his eye. While Jimmy thus reassured his rapidly beating heart, and gripped his gun with feverish zeal; at the same time, he breathed a sigh of relief after they had really gained the shelter of the grim opening, and there was no wild crash of guns, or hoarse demand for their surrender, with threats of terrible consequences in case of refusal.

And now they were sheltered by the mouth of the mine, so that they felt more confident of being able to take care of themselves, in case anything violent came to pass.

Ned, always on the alert to notice things, saw at once that the opening was partly natural. It looked as though the men who claimed to have made this wonderful discovery of rich copper-bearing quartz had also found a fissure in the rocks splendidly fitted for their purposes, since it allowed them to pass far into the side of the hill before they were compelled to blast and hew passages.

So much for a starter, Ned thought. He was taking note of all such things, thinking to incorporate them in his report. Although they might seem trifling in a way, he realized that they would have considerable bearing in settling the matter with Mr. Bosworth, and those associated with him in the big company that proposed to purchase a controlling interest in these new mines, should the report seem favorable.

The next thing was to pass into the mine.

Ned had come well prepared for this venture. Just as he and his chums carried guns with which to defend themselves in case of an attack—just as he had produced field-glasses when they were sorely needed—in the same way the scouts now had a clever means at hand for lighting their road, once they left the sunlight behind them.

Not only Ned, but every one of the five, produced a splendid little pocket searchlight. Extra batteries were also carried, so that they need not worry over the possibility of the power giving out at a critical moment.

The two guides were evidently well pleased when they saw this display of illumination; though they must have known something about it before then. Ned concluded that there was really no need of so much light, which would only add to the danger of discovery. One light, or two at most, would give them ample means for seeing the way, and avoiding any pitfalls.

Accordingly he asked the others to shut off their batteries and follow him. Now that the guides had done their part in bringing the party into the mine, Ned meant to resume his natural place in the van, as the leader of the expedition.

As they moved along it was seen that very little labor had been required thus far to make an opening quite large enough for all practical purposes. The mass of rock that lay in the dump outside was probably ore that showed signs of being valuable. It was intended to impress any one with an exalted idea of the fabulous richness of the discovery, and had doubtless been well planted for that purpose.