She had exhausted every possibility of escape, going over and over again the door and the windows, the floor and the walls. The solid ersite slabs she could not even scratch; the tough Barsoomian glass of the windows would have shattered to nothing less than a heavy sledge in the hands of a strong man. The door and the lock were impregnable. There was no escape. And they had stripped her of her weapons so that she could not even anticipate the hour of her doom, thus robbing them of the satisfaction of witnessing her last moments. When would they come? Would Astok do the deed with his own hands? She doubted that he had the courage for it. At heart he was a coward—she had known it since first she had heard him brag as, a visitor at the court of her father, he had sought to impress her with his valour. She could not help but compare him with another. And with whom would an affianced bride compare an unsuccessful suitor? With her betrothed? And did Thuvia of Ptarth now measure Astok of Dusar by the standards of Kulan Tith, Jeddak of Kaol? She was about to die; her thoughts were her own to do with as she pleased; yet furthest from them was Kulan Tith. Instead the figure of the tall and comely Heliumite filled her mind, crowding therefrom all other images. She dreamed of his noble face, the quiet dignity of his bearing, the smile that lit his eyes as he conversed with his friends, and the smile that touched his lips as he fought with his enemies—the fighting smile of his Virginian sire. And Thuvia of Ptarth, true daughter of Barsoom, found her breath quickening and heart leaping to the memory of this other smile—the smile that she would never see again. With a little half-sob the girl sank to the pile of silks and furs that were tumbled in confusion beneath the east windows, burying her face in her arms. In the corridor outside her prison-room two men had paused in heated argument. “I tell you again, Astok,” one was saying, “that I shall not do this thing unless you be present in the room.” There was little of the respect due royalty in the tone of the speaker’s voice. The other, noting it, flushed. “Do not impose too far upon my friendship for you, Vas Kor,” he snapped. “There is a limit to my patience.” “There is no question of royal prerogative here,” returned Vas Kor. “You ask me to become an assassin in your stead, and against your jeddak’s strict injunctions. You are in no position, Astok, to dictate to me; but rather should you be glad to accede to my reasonable request that you be present, thus sharing the guilt with me. Why should I bear it all?” The younger man scowled, but he advanced toward the locked door, and as it swung in upon its hinges, he entered the room beyond at the side of Vas Kor.