Jana raised her eyes above the level of the grasses and looked in the direction that Tarzan was gazing. She shuddered. "They are not men," she said; "they are the Horibs and the things upon the backs of which they ride are Gorobors. If they see us we are lost. Nothing in the world can escape the Gorobors, for there is nothing in all Pellucidar so swift as they. Lie still. Our only chance is that they may not discover us."
At sight of the Horibs the Gyor emitted a terrific bellow that shook the ground and, lowering his head, he charged straight for them. Fully fifty of the Horibs on their horrid mounts had emerged from the ravine. Tarzan could see that the riders were armed with long lances—pitiful and inadequate weapons, he thought, with which to face an enraged triceratop. But it soon became apparent that the Horibs did not intend to meet that charge head-on. Wheeling to their right they formed in single file behind their leader and then for the first time Tarzan had an exhibition of the phenomenal speed of the huge lizards upon which they were mounted, which is comparable only to the lightning-like rapidity of a tiny desert lizard known as a swift.
Following tactics similar to those of the plains Indians of western America, the Horibs were circling their prey. The bellowing Gyor, aroused to a frenzy of rage, charged first in one direction and then another, but the Gorobors darted from his path so swiftly that he never could overtake them. Panting and blowing, he presently came to bay and then the Horibs drew their circle closer, whirling dizzily about him, while Tarzan watched the amazing scene, wondering by what means they might ever hope to dispatch the ten tons of incarnate fury that wheeled first this way and then that at the center of their circle.
As swiftly as they had darted in all three wheeled and were out again, part of the racing circle, but in the sides of the Gyor they had left two lances deeply imbedded. The fury of the wounded triceratop transcended any of his previous demonstrations. His bellowing became a hoarse, coughing scream as once again he lowered his head and charged.
This time he did not turn and charge in another direction as he had in the past, but kept on in a straight line, possibly in the hope of breaking through the encircling Horibs, and to his dismay the ape-man saw that he and Jana were directly in the path of the charging beast. If the Horibs did not turn him, they were lost.
A dozen of the reptile-men darted in upon the rear of the Gyor. A dozen more lances sank deeply into its body, proving sufficient to turn him in an effort to avenge himself upon those who had inflicted these new hurts.
This charge had carried the Gyor within fifty feet of Tarzan and Jana. It had given the ape-man an uncomfortable moment, but its results were almost equally disastrous for it brought the circling Horibs close to their position.
The Gyor stood now with lowered head, breathing heavily and bleeding from more than a dozen wounds. A Horib now rode slowly toward him, approaching him directly from in front. The attention of the triceratop was centered wholly upon this single adversary as two more moved toward him diagonally from the rear, one on either side, but in such a manner that they were concealed from his view by the great transverse crest encircling his neck behind the horns and eyes. The three approached thus to within about fifty feet of the brute and then those in the rear darted forward simultaneously at terrific speed, leaning well forward upon their mounts, their lances lowered. At the same instant each struck heavily upon either side of the Gyor, driving their spears far in. So close did they come to their prey that their mounts struck the shoulders of the Gyor as they turned and darted out again.
For an instant the great creature stood reeling in its tracks and then it slumped forward heavily and rolled over upon its side—the final lances had pierced its heart.
Tarzan was glad that it was over as he had momentarily feared discovery by the circling Horibs and he was congratulating himself upon their good fortune when the entire band of snake-men wheeled their mounts and raced swiftly in the direction of their hiding place. Once more they formed their circle, but this time Tarzan and Jana were at its center. Evidently the Horibs had seen them, but had temporarily ignored them until after they had dispatched the Gyor.