On went Tharn, combing each successive chamber for a sign of human life. He was determined not to quit this place until completely satisfied Dylara was held elsewhere. The task, not easy at best, would prove even more difficult with the palace guards on the lookout for an intruder.

Stronger by the minute was the realization that this strange race of people, who were capable of erecting their own caves of stone, who could make strange weapons to throw tiny spears with unbelievable accuracy, whose hands could shape such a variety of articles—were sadly lacking in the qualities without which Tharn could never have arrived at young manhood.

That five men could pass at arm's length from him and yet remain unaware of his nearness, was inconceivable to the man of the caves. Were their noses ornaments, he wondered, that they could not sense a hidden foe? Were their wits so dull they could pass up so obvious a hiding place as he had chosen?

No wonder that they had erected a great wall between them and the jungle! His lip curled with contempt as he pictured an army of them scattering before the charge of Sadu.

By this time he had reached the great hall inside the palace main entrance. A giant skylight high up in the ceiling, its cover removed during the dry season, admitted cold moonlight in a brilliant cascade of light that left no shadows or darkened corners.

From the center of the vast hall rose a gigantic staircase of stone to the second floor. Tharn, reasoning that the palace sleeping quarters would be above, stole warily toward the stairway.

And then a horde of armed men broke unexpectedly from a doorway across the hall, and spying Tharn, bore down upon him, uttering a chorus of exultant yells as they came.

One tremendous bound brought Tharn to the steps, up which he fled with all the speed of Jalok, the panther. Three spears hurled with senseless enthusiasm, fell short of their intended mark. But the shouts of alarm and excitement were fast arousing other inhabitants of the building. From somewhere above, Tharn heard a door slam, followed by the sound of running feet in the upper corridor to his left. Hence the moment he reached the landing he turned right and raced along the still deserted hallway, his naked feet soundless on the bare stone.

Because of the fugitive's silent approach, four guards, who stood facing in the opposite direction, did not hear him as he rounded a turn of the corridor and came toward them. At sight of those backs, Tharn slid to a stop and turned to retrace his steps.