this at a place which would have saved him fully ten miles, he was dismayed by the discovery that he could not again pick up either Nadara’s trail or that of the cave man. Even his own old trail was entirely obliterated.
It was this fact which caused him the greatest concern, for it meant that if Nadara really had been following it she must now be wandering rather aimlessly, possibly in an attempt to again locate it. In which event her speed would be materially reduced, and the probability of her capture by Flatfoot much enhanced.
It was possible, too, that the beast already had overtaken her—this, in fact, might be the true cause of the cessation of the pursuit along the way which it had proceeded up to this point.
The thought sent Waldo back along his former route, which he was able to follow by recollection, though the spoor was seldom visible.
He came upon no sign of those he sought that day, but the next morning he found the point at which Nadara had lost his old trail upon a rocky ridge. The girl evidently assumed that it would lead into the valley below where she might pick it up again in the soft earth, and so her footprints led down a shelving bluff, while plain above them showed the huge imprints of Flatfoot.
Up to this point at least he had not caught up
