Assassination runs riot in the great Barsoomian cities; yet to murder a woman is a crime so unthinkable that even the most hardened of the paid assassins would shrink from you in horror should you suggest such a thing to him.

Nutus was apparently oblivious to his son’s all-too-patent terror at his suggestion. Presently he continued:

“You say that you know where the girl lies hid, since she was stolen from your people at Aaanthor. Should she be found by any one of the three powers, her unsupported story would be sufficient to turn them all against us.

“There is but one way, Astok,” cried the older man. “You must return at once to her hiding-place and fetch her hither in all secrecy. And, look you here! Return not to Dusar without her, upon pain of death!”

Astok, Prince of Dusar, well knew his royal father’s temper. He knew that in the tyrant’s heart there pulsed no single throb of love for any creature.

Astok’s mother had been a slave woman. Nutus had never loved her. He had never loved another. In youth he had tried to find a bride at the courts of several of his powerful neighbours, but their women would have none of him.

After a dozen daughters of his own nobility had sought self-destruction rather than wed him he had given up. And then it had been that he had legally wed one of his slaves that he might have a son to stand among the jeds when Nutus died and a new jeddak was chosen.

Slowly Astok withdrew from the presence of his father. With white face and shaking limbs he made his way to his own palace. As he crossed the courtyard his glance chanced to wander to the great east tower looming high against the azure of the sky.

At sight of it beads of sweat broke out upon his brow.

Issus! No other hand than his could be trusted to do the horrid thing. With his own fingers he must crush the life from that perfect throat, or plunge the silent blade into the red, red heart.

Her heart! The heart that he had hoped would brim with love for him!

But had it done so? He recalled the haughty contempt with which his protestations of love had been received. He went cold and then hot to the memory of it. His compunctions cooled as the self-satisfaction of a near revenge crowded out the finer instincts that had for a moment asserted themselves—the good that he had inherited from the slave woman was once again submerged in the bad blood that had come down to him from his royal sire; as, in the end, it always was.

A cold smile supplanted the terror that had dilated his eyes. He turned his steps toward the tower. He would see her before he set out upon the journey that was to blind his father to the fact that the girl was already in Dusar.

Quietly he passed in through the secret way, ascending a spiral runway to the apartment in which the Princess of Ptarth was immured.

As he entered the room he saw the girl leaning upon the sill of the east casement, gazing out across the roof tops of Dusar toward distant Ptarth. He hated Ptarth. The thought of it filled him with rage. Why not finish her now and have it done with?

At the sound of his step she turned quickly toward him. Ah, how beautiful she was! His sudden determination faded beneath the glorious light of her wondrous beauty. He would wait until he had returned from his little journey of deception—maybe there might be some other way then. Some other hand to strike the blow—with that face, with those eyes before him, he could never do it. Of that he was positive. He had always gloried in the cruelty of his nature, but, Issus! he was not that cruel. No, another must be found—one whom he could trust.

He was still looking at her as she stood there before him meeting his gaze steadily and unafraid. He felt the hot passion of his love mounting higher and higher.

Why not sue once more? If she would relent, all might yet be well. Even if his father could not be persuaded they could fly to Ptarth, laying all the blame of the knavery and intrigue that had thrown four great nations into war, upon the shoulders of Nutus. And who was there that would doubt the justice of the charge?

“Thuvia,” he said, “I come once again, for the last time, to lay my heart at your feet. Ptarth and Kaol and Dusar are battling with Helium because of you.