They had headed their horses, and were about to ride rapidly after, when they saw him stop; and now moving gently forward with their eyes on him, they see him replace the cap upon his head, and bend downward, with gaze given to the ground. Some new fancy dictated by a disordered brain, think they. What will he do next? What will they see?

And what do they see on drawing nearer to him? That which makes both of them feel foolish enough; at the same time that it rejoices them to think they have been the victims of a self-deception. For before they are quite up to the spot where he has halted, they perceive a large space of whitish colour, where the surface mud has been tossed and mixed up with the substratum of saltpetre—all done by the hoofs of horses, as even at a distance they can tell.

“Come along here, you laggards!” cries Ludwig in a tone of triumph; “I’ve something to show you. Feast your eyes upon this!”

While speaking he nods to the ground by his horse’s head, indicating the disturbed tract; then, adding as he raises his hand, and points outward—

“And on that!”

The “that” he refers to is a white list leading away westward as far as they can see—evidently the trail taken by those they are in pursuit of.

Long ere this, both Gaspar and Cypriano have full comprehension of what perplexed while alarming them. But neither says a word of the suspicions they had entertained concerning him. Each in his own mind has resolved never to speak of them, the gaucho, as he comes up again, crying out—

“Bravo!” then adding with an air of gracious humility, “So, Señor Ludwig, you, too, have beaten me! Beaten us all! You’ve set us on the right trail now; one which, if I mistake not, will conduct us to the end of our journey, without need of sunshine, or any other contrivance.”

“And that end,” interposes Cypriano, “will be in a town or camp of Tovas Indians, at the tent of the scoundrel Aguara;” then, adding excitedly, “Oh! that I were there now!”

“Have patience, hijo mio,” counsels Gaspar; “you’ll be there in good time, and that very soon. For, from something I remember, I don’t think we’ve much more journey to make. But before proceeding further, let us take a look at this curious thing here, and see what we can make of it. Besides, our animals need breathing a bit.”