THE HALL OF DOOM As Thuvia of Ptarth saw Carthoris depart from the presence of Tario, leaving her alone with the man, a sudden qualm of terror seized her. There was an air of mystery pervading the stately chamber. Its furnishings and appointments bespoke wealth and culture, and carried the suggestion that the room was often the scene of royal functions which filled it to its capacity. And yet nowhere about her, in antechamber or corridor, was there sign of any other being than herself and the recumbent figure of Ta…