Jason Gridley had witnessed cloudbursts in California and Arizona and he knew how quickly gulleys and ravines may be transformed into raging torrents. He had seen a river a mile wide formed in a few hours in the San Simon Flats, and when he saw the sudden rush of waters in the bottom of the gorge below him and realized that no storm that he had ever previously witnessed could compare in magnitude with this, he lost no time in seeking higher ground; but the sides of the canyon were steep and his upward progress discouragingly slow, as he saw the waters rising rapidly behind him. Yet there was hope, for just ahead and above him he saw a gentle acclivity rising toward the summit of the canyon rim. As he struggled toward safety the boiling torrent rose and lapped his feet, while from above the torrential rain thundered down upon him, beating him backward so that often for a full minute at a time he could make no headway. The raging waters that were filling the gorge reached his knees and for an instant he was swept from his footing. Clutching at the ground above him with his hands, he lost his rifle, but as it slid into the turgid waters he clambered swiftly upward and regained momentary safety. Onward and upward he fought until at last he reached a spot above which he was confident the flood could not reach and there he crouched in the partial shelter of an overhanging granite ledge as Tarzan and Thoar and Tar-gash were crouching in another part of the mountains, waiting in dumb misery for the storm to spend its wrath. He wondered if Jana had escaped the flood and so much confidence did he have in her masterful ability to cope with the vagaries of savage Pellucidarian life that he harbored few fears for her upon the score of the storm. In the cold and the dark and the wet he tried to plan for the future. What chance had he to find The Red Flower of Zoram in this savage chaos of stupendous peaks when he did not even know the direction in which her country lay and where there were no roads or trails and where even the few tracks that she might have left must have been wholly obliterated by the torrents of water that had covered the whole surface of the ground? To stumble blindly on, then, seemed the only course left open to him, since he knew neither the direction of Zoram, other than in a most general way, nor had any idea as to the whereabouts of his fellow members of the O-220 expedition. At last the rain ceased; the sun burst forth upon a steaming world and beneath the benign influence of its warm rays Jason felt the cold ashes of hope rekindled within his breast. Revivified, he took up the search that but now had seemed so hopeless.