The Horibs were moving almost directly up wind so that Tarzan knew that the authors of the familiar odors that he had sensed were somewhere ahead of them. He thought quickly now, but not without weighing carefully the plan that had leaped to his mind the instant that that familiar scent spoor had impinged upon his nostrils. His major consideration was for the safety of the girl, but in order to rescue her he must protect himself. He felt that it would be impossible for them both to escape simultaneously, but there was another way now—a way which seemed to offer excellent possibilities for success. Behind him, upon the Gorobor, and so close that their bodies touched, sat a huge Horib. In one hand he carried a lance, but the other hand was free. Tarzan must move so quickly that the fellow could not touch him with his free hand before he was out of reach. To do this would require agility of an almost superhuman nature, but there are few creatures who can compare in this respect with the ape-man. Low above them swung the branches of the dismal forest; Tarzan waited, watching for the opportunity he sought. Presently he saw it—a sturdy branch with ample head room above it—a doorway in the ceiling of somber foliage. He leaned forward, his hands resting lightly upon the neck of the Gorobor. They were almost beneath the branch he had selected when he sprang lightly to his feet and almost in the same movement sprang upward into the tree. So quickly had he accomplished the feat that he was gone before the Horib that had been guarding him realized it. When he did it was too late—the prisoner had gone. With others, who had seen the escape, he raised a cry of warning to those ahead, but neither by sight nor sound could they locate the fugitive, for Tarzan travelled through the upper terrace and all the foliage beneath hid him from the eyes of his enemies.

Jana, who had been riding a little in the rear of Tarzan, saw his escape and her heart sank for in the presence of the Horibs The Red Flower of Zoram had come as near to experiencing fear as she ever had in her life. She had derived a certain sense of comfort from the presence of Tarzan and now that he was gone she felt very much alone. She did not blame him for escaping when he had the opportunity, but she was sure in her own heart that Jason would not thus have deserted her.

Following the scent spoor that was his only guide, Tarzan of the Apes moved rapidly through the trees. At first he climbed high to the upper terraces and here he found a new world—a world of sunlight and luxuriant foliage, peopled by strange birds of gorgeous plumage which darted swiftly hither and thither. There were flying reptiles, too, and great gaudy moths. Snakes coiled upon many a branch and because they were of varieties unknown to him, he did not know whether they constituted a real menace or not. It was at once a beautiful and a repulsive world, but the feature of it which attracted him most was its silence, for its denizens seemed to be voiceless. The presence of the snakes and the dense foliage rendered it an unsatisfactory world for one who wished to travel swiftly and so the ape-man dropped to a lower level, and here he found the forest more open and the scent spoor clearer in his nostrils.

Not once had he doubted the origin of that scent, although it seemed preposterously unbelievable that he should discover it here in this gloomy wood in vast Pellucidar.

He was moving very rapidly for he wished, if possible, to reach his destination ahead of the Horibs. He hoped that his escape might delay the lizard-men and this was, in fact, the case, for they had halted immediately while a number of them had climbed into the trees searching for Tarzan. There was little in their almost expressionless faces to denote their anger, but the sickly bluish cast which overspread their scales denoted their mounting rage at the ease with which this gilak prisoner had escaped them, and when, finally, thwarted in their search, they resumed their interrupted march, they were in a particularly ugly mood.

Far ahead of them now Tarzan of the Apes dropped to the lower terraces. Strong in his nostrils was the scent spoor he had been following, telling him in a language more dependable than words that he had but little further to go to find those he sought, and a moment later he dropped down into one of the gloomy aisles of the forest, dropping as from heaven into the astonished view of ten stalwart warriors.

For an instant they stood looking at him in wide-eyed amazement and then they ran forward and threw themselves upon their knees about him, kissing his hands as they shed tears of happiness. "Oh, Bwana, Bwana," they cried; "it is indeed you! Mulungu has been good to his children; he has given their Big Bwana back to them alive."

"And now I have work for you, my children," said Tarzan; "the snake people are coming and with them is a girl whom they have captured. I thank God that you are armed with rifles and I hope that you have plenty of ammunition."

"We have saved it, Bwana, using our spears and our arrows whenever we could."

"Good," said Tarzan; "we shall need it now. How far are we from the ship?"