At the wall enclosing the tower they paused while one opened the gate and then they passed within the enclosure, which, to the girl's horror, she found filled with headless bodies. The creature who carried the bodiless head now set its burden upon the ground and the latter immediately crawled toward one of the bodies that was lying near by. Some wandered stupidly to and fro, but this one lay still. It was a female. The head crawled to it and made its way to the shoulders where it settled itself. At once the body sprang lightly erect. Another of those who had accompanied them from the fields approached with the harness and collar that had been taken from the dead body that the head had formerly topped. The new body now appropriated these and the hands deftly adjusted them. The creature was now as good as before Tara of Helium had struck down its former body with her slim blade. But there was a difference. Before it had been male--now it was female. That, however, seemed to make no difference to the head. In fact, Tara of Helium had noticed during the scramble and the fight about her that sex differences seemed of little moment to her captors. Males and females had taken equal part in her pursuit, both were identically harnessed and both carried swords, and she had seen as many females as males draw their weapons at the moment that a quarrel between the two factions seemed imminent. The girl was given but brief opportunity for further observation of the pitiful creatures in the enclosure as her captor, after having directed the others to return to the fields, led her toward the tower, which they entered, passing into an apartment about ten feet wide and twenty long, in one end of which was a stairway leading to an upper level and in the other an opening to a similar stairway leading downward. The chamber, though on a level with the ground, was brilliantly lighted by windows in its inner wall, the light coming from a circular court in the center of the tower. The walls of this court appeared to be faced with what resembled glazed, white tile and the whole interior of it was flooded with dazzling light, a fact which immediately explained to the girl the purpose of the glass prisms of which the domes were constructed. The stairways themselves were sufficient to cause remark, since in nearly all Barsoomian architecture inclined runways are utilized for purposes of communication between different levels, and especially is this true of the more ancient forms and of those of remote districts where fewer changes have come to alter the customs of antiquity. Down the stairway her captor led Tara of Helium. Down and down through chambers still lighted from the brilliant well. Occasionally they passed others going in the opposite direction and these always stopped to examine the girl and ask questions of her captor.