There now arose in his mind a question as to what would be their relationship when Tarzan had dismounted. Would it again revert to that of hunter and quarry or would fear of the goad continue to hold its supremacy over the natural instinct of the hunting flesh-eater? Tarzan wondered but as he could not remain upon the GRYF forever, and as he preferred dismounting and putting the matter to a final test while it was still light, he decided to act at once. How to stop the creature he did not know, as up to this time his sole desire had been to urge it forward. By experimenting with his staff, however, he found that he could bring it to a halt by reaching forward and striking the thing upon its beaklike snout. Close by grew a number of leafy trees, in any one of which the ape-man could have found sanctuary, but it had occurred to him that should he immediately take to the trees it might suggest to the mind of the GRYF that the creature that had been commanding him all day feared him, with the result that Tarzan would once again be held a prisoner by the triceratops. And so, when the GRYF halted, Tarzan slid to the ground, struck the creature a careless blow across the flank as though in dismissal and walked indifferently away. From the throat of the beast came a low rumbling sound and without even a glance at Tarzan it turned and entered the river where it stood drinking for a long time. Convinced that the GRYF no longer constituted a menace to him the ape-man, spurred on himself by the gnawing of hunger, unslung his bow and selecting a handful of arrows set forth cautiously in search of food, evidence of the near presence of which was being borne up to him by a breeze from down river. Ten minutes later he had made his kill, again one of the Pal-ul-don specimens of antelope, all species of which Tarzan had known since childhood as Bara, the deer, since in the little primer that had been the basis of his education the picture of a deer had been the nearest approach to the likeness of the antelope, from the giant eland to the smaller bushbuck of the hunting grounds of his youth. Cutting off a haunch he cached it in a nearby tree, and throwing the balance of the carcass across his shoulder trotted back toward the spot at which he had left the GRYF. The great beast was just emerging from the river when Tarzan, seeing it, issued the weird cry of the Tor-o-don. The creature looked in the direction of the sound voicing at the same time the low rumble with which it answered the call of its master. Twice Tarzan repeated his cry before the beast moved slowly toward him, and when it had come within a few paces he tossed the carcass of the deer to it, upon which it fell with greedy jaws.