But Astok was afraid, and he wanted from this older man the suggestion of an alternative. He went on.

«I am to kill her,» he whispered, looking fearfully around. «Nutus merely wishes to see the body that he may know his commands have been executed. I am now supposed to be gone to the spot where we have her hidden that I may fetch her in secrecy to Dusar. None is to know that she has ever been in the keeping of a Dusarian. I do not need to tell you what would befall Dusar should Ptarth and Helium and Kaol ever learn the truth.»

The jaws of the listener at the ventilator clicked together with a vicious snap. Before he had but guessed at the identity of the subject of this conversation. Now he knew. And they were to kill her! His muscular fingers clenched until the nails bit into the palms.

«And you wish me to go with you while you fetch her to Dusar,» Vas Kor was saying. «Where is she?»

Astok bent close and whispered into the other's ear. The suggestion of a smile crossed the cruel features of Vas Kor. He realized the power that lay within his grasp. He should be a jed at least.

«And how may I help you, my Prince?» asked the older man suavely.

«I cannot kill her,» said Astok. «Issus! I cannot do it! When she turns those eyes upon me my heart becomes water.»

Vas Kor's eyes narrowed.

«And you wish-«He paused, the interrogation unfinished, yet complete.

Astok nodded.

«YOU do not love her,» he said.

«But I love my life-though I am only a lesser noble,» he concluded meaningly.

«You shall be a greater noble-a noble of the first rank!» exclaimed Astok.

«I would be a jed,» said Vas Kor bluntly.

Astok hesitated.

«A jed must die before there can be another jed,» he pleaded.

«Jeds have died before,» snapped Vas Kor. «It would doubtless be not difficult for you to find a jed you do not love, Astok-there are many who do not love you.»

Already Vas Kor was commencing to presume upon his power over the young prince. Astok was quick to note and appreciate the subtle change in his lieutenant. A cunning scheme entered his weak and wicked brain.

«As you say, Vas Kor!» he exclaimed. «You shall be a jed when the thing is done,» and then, to himself: «Nor will it then be difficult for me to find a jed I do not love.»

«When shall we return to Dusar?» asked the noble.

«At once,» replied Astok. «Let us get under way now-there is naught to keep you here?»

«I had intended sailing on the morrow, picking up such recruits as the various Dwars of the Roads might have collected for me, as we returned to Dusar.»

«Let the recruits wait,» said Astok. «Or, better still, come you to Dusar upon the Thuria, leaving the Kalksus to follow and pick up the recruits.»

«Yes,» acquiesced Vas Kor; «that is the better plan. Come; I am ready,» and he rose to accompany Astok to the latter's flier.

The listener at the ventilator came to his feet slowly, like an old man. His face was drawn and pinched and very white beneath the light copper of his skin. She was to die! And he helpless to avert the tragedy. He did not even know where she was imprisoned.

The two men were ascending from the cabin to the deck. Turjun, the panthan, crept close to the companionway, his sinuous fingers closing tightly upon the hilt of his dagger. Could he despatch them both before he was overpowered? He smiled. He could slay an entire utan of her enemies in his present state of mind.

They were almost abreast of him now. Astok was speaking.

«Bring a couple of your men along, Vas Kor,» he said. «We are short-handed upon the Thuria, so quickly did we depart.»

The panthan's fingers dropped from the dagger's hilt. His quick mind had grasped here a chance for succouring Thuvia of Ptarth. He might be chosen as one to accompany the assassins, and once he had learned where the captive lay he could dispatch Astok and Vas Kor as well as now. To kill them before he knew where Thuvia was hid was simply to leave her to death at the hands of others; for sooner or later Nutus would learn her whereabouts, and Nutus, Jeddak of Dusar, could not afford to let her live.

Turjun put himself in the path of Vas Kor that he might not be overlooked. The noble aroused the men sleeping upon the deck, but always before him the strange panthan whom he had recruited that same day found means for keeping himself to the fore.

Vas Kor turned to his lieutenant, giving instruction for the bringing of the Kalksus to Dusar, and the gathering up of the recruits; then he signed to two warriors who stood close behind the padwar.

«You two accompany us to the Thuria,» he said, «and put yourselves at the disposal of her dwar.»

It was dark upon the deck of the Kalksus, so Vas Kor had not a good look at the faces of the two he chose; but that was of no moment, for they were but common warriors to assist with the ordinary duties upon a flier, and to fight if need be.

One of the two was Kar Komak, the bowman. The other was not Carthoris.

The Heliumite was mad with disappointment. He snatched his dagger from his harness; but already Astok had left the deck of the Kalksus, and he knew that before he could overtake him, should he dispatch Vas Kor, he would be killed by the Dusarian warriors, who now were thick upon the deck. With either one of the two alive Thuvia was in as great danger as though both lived-it must be both!

As Vas Kor descended to the ground Carthoris boldly followed him, nor did any attempt to halt him, thinking, doubtless, that he was one of the party.

After him came Kar Komak and the Dusarian warrior who had been detailed to duty upon the Thuria. Carthoris walked close to the left side of the latter. Now they came to the dense shadow under the side of the Thuria. It was very dark there, so that they had to grope for the ladder.

Kar Komak preceded the Dusarian. The latter reached upward for the swinging rounds, and as he did so steel fingers closed upon his windpipe and a steel blade pierced the very centre of his heart.

Turjun, the panthan, was the last to clamber over the rail of the Thuria, drawing the rope ladder in after him.

A moment later the flier was rising rapidly, headed for the north.

At the rail Kar Komak turned to speak to the warrior who had been detailed to accompany him. His eyes went wide as they rested upon the face of the young man whom he had met beside the granite cliffs that guard mysterious Lothar. How had he come in place of the Dusarian?

A quick sign, and Kar Komak turned once more to find the Thuria's dwar that he might report himself for duty. Behind him followed the panthan.

Carthoris blessed the chance that had caused Vas Kor to choose the bowman of all others, for had it been another Dusarian there would have been questions to answer as to the whereabouts of the warrior who lay so quietly in the field beyond the residence of Hal Vas, Dwar of the Southern Road; and Carthoris had no answer to that question other than his sword point, which alone was scarce adequate to convince the entire crew of the Thuria.

The journey to Dusar seemed interminable to the impatient Carthoris, though as a matter of fact it was quickly accomplished. Some time before they reached their destination they met and spoke with another Dusarian war flier. From it they learned that a great battle was soon to be fought south-east of Dusar.

The combined navies of Dusar, Ptarth and Kaol had been intercepted in their advance toward Helium by the mighty Heliumitic navy-the most formidable upon Barsoom, not alone in numbers and armament, but in the training and courage of its officers and warriors, and the zitidaric proportions of many of its monster battleships.

Not for many a day had there been the promise of such a battle. Four jeddaks were in direct command of their own fleets-Kulan Tith of Kaol, Thuvan Dihn of Ptarth, and Nutus of Dusar upon one side; while upon the other was Tardos Mors, Jeddak of Helium. With the latter was John Carter, Warlord of Mars.