But O-Tar hesitated.  He looked about upon the faces of those around him at the banquet board; but he saw only the grim visages of relentless warriors.  There was no trace of leniency in the face of any.  And then his eyes wandered to a small entrance at one side of the great chamber.  An expression of relief expunged the scowl of anxiety from his features.

“Look!” he exclaimed.  “See who has come!”

CHAPTER XX

THE CHARGE OF COWARDICE

Gahan, watching through the aperture between the hangings, saw the frantic flight of their pursuers.  A grim smile rested upon his lips as he viewed the mad scramble for safety and saw them throw away their swords and fight with one another to be first from the chamber of fear, and when they were all gone he turned back toward Tara, the smile still upon his lips; but the smile died the instant that he turned, for he saw that Tara had disappeared.

“Tara!” he called in a loud voice, for he knew that there was no danger that their pursuers would return; but there was no response, unless it was a faint sound as of cackling laughter from afar.  Hurriedly he searched the passageway behind the hangings finding several doors, one of which was ajar.  Through this he entered the adjoining chamber which was lighted more brilliantly for the moment by the soft rays of hurtling Thuria taking her mad way through the heavens.  Here he found the dust upon the floor disturbed, and the imprint of sandals.  They had come this way—­Tara and whatever the creature was that had stolen her.

But what could it have been?  Gahan, a man of culture and high intelligence, held few if any superstitions.  In common with nearly all races of Barsoom he clung, more or less inherently, to a certain exalted form of ancestor worship, though it was rather the memory or legends of the virtues and heroic deeds of his forebears that he deified rather than themselves.  He never expected any tangible evidence of their existence after death; he did not believe that they had the power either for good or for evil other than the effect that their example while living might have had upon following generations; he did not believe therefore in the materialization of dead spirits.  If there was a life hereafter he knew nothing of it, for he knew that science had demonstrated the existence of some material cause for every seemingly supernatural phenomenon of ancient religions and superstitions.  Yet he was at a loss to know what power might have removed Tara so suddenly and mysteriously from his side in a chamber that had not known the presence of man for five thousand years.