Frank waited until all had passed over.
He saw upon a wide plateau beyond the peaks a number of log cabins thatched with palms.
He concluded at once, and correctly, that this was the stronghold of the brigands.
Frank was too cautious to venture to cross the bridge as yet.
This would certainly have exposed his presence to the brigands.
But darkness was fast coming on, and he would have a better opportunity to carry his point.
So the young inventor secreted himself in a clump of bushes near.
He watched the opposite side of the gorge, and while doing so was given a thrilling surprise.
From the growth of palms there stepped forth suddenly and stood revealed upon the wall of the chasm a beautiful vision of female loveliness.
This was a young girl, as fair and slender as a dream. But her dress was not of the Spanish type, nor were her features. There was no mistaking the fact that she was American.