After Tarzan had slain the boar, he cut off the hind quarters and started back to the tree in which he had left La. The storm made his progress much slower than it otherwise would have been, but notwithstanding this he realized long before he reached his destination that his hunting had taken him much farther afield than he had imagined.

When at last he reached the tree and found that La was not there, he was slightly disconcerted, but thinking that perhaps she had descended to stretch her limbs after the storm, he called her name aloud several times. Receiving no answer, he became genuinely apprehensive for her safety and, dropping to the ground, sought some sign of her spoor. It so happened that beneath the tree her footprints were still visible, not having been entirely obliterated by the rain. He saw that they led back in the direction of Opar, so that, although he lost them when they reached the trail, in which water still was running, he was none the less confident that he knew her intended destination; and so he set off in the direction of the barrier cliff.

It was not difficult for him to account for her absence and for the fact that she was returning to Opar, and he reproached himself for his thoughtlessness in having left her for so long a time without first telling her of his purpose. He guessed, rightly, that she had imagined herself deserted and had turned back to the only home she knew, to the only place in the world where La of Opar might hope to find friends; but that she would find them even there Tarzan doubted, and he was determined that she must not go back until she could do so with a force of warriors sufficiently great to insure the overthrow of her enemies.

It had been Tarzan's plan first to thwart the scheme of the party whose camp he had discovered in his dominion and then to return with La to the country of his Waziri, where he would gather a sufficient body of those redoubtable warriors to insure the safety and success of La's return to Opar. Never communicative, he had neglected to explain his purposes to La; and this he now regretted, since he was quite certain that had he done so she would not have felt it necessary to have attempted to return alone to Opar.

But he was not much concerned with the outcome since he was confident that he could overtake her long before she reached the city; and, enured as he was to the dangers of the forest and the jungle, he minimized their importance, as we do those which confront us daily in the ordinary course of our seemingly humdrum existence, where death threatens us quite as constantly as it does the denizens of the jungle.

At any moment expecting to catch sight of her whom he sought, Tarzan traversed the back trail to the foot of the rocky escarpment that guards the plain of Opar; and now he commenced to have his doubts, for it did not seem possible that La could have covered so great a distance in so short a time. He scaled the cliff and came out upon the summit of the flat mountain that overlooked distant Opar. Here only a light rain had fallen, the storm having followed the course of the valley below, and plain in the trail were the footprints of himself and La where they had passed down from Opar the night before; but nowhere was there any sign of spoor to indicate that the girl had returned, nor, as he looked out across the valley, was there any moving thing in sight.

What had become of her? Where could she have gone? In the great forest that spread below him there were countless trails. Somewhere below, her spoor must be plain in the freshly-wet earth, but he realized that even for him it might prove a long and difficult task to pick it up again.

As he turned back rather sorrowfully to descend the barrier cliff, his attention was attracted by a movement at the edge of the forest below. Dropping to his belly behind a low bush, Tarzan watched the spot to which his attention had been attracted; and as he did so the head of a column of men debouched from the forest and moved toward the foot of the cliff.

Tarzan had known nothing of what had transpired upon the occasion of Zveri's first expedition to Opar, which had occurred while he had been incarcerated in the cell beneath the city. The apparent mysterious disappearance of the party that he had known to have been marching on Opar had mystified him; but here it was again, and where it had been in the meantime was of no moment.

Tarzan wished that he had his bow and arrow, which the Oparians had taken from him and which he had not had an opportunity to replace since he had escaped. But if he did not have them, there were other ways of annoying the invaders. From his position he watched them approach the cliff and commence the ascent.