Then, backing slowly before them, I commenced the ascent of the spiral.

All the long way to the tower's top the guardsmen pressed me closely. When one went down before my sword another scrambled over the dead man to take his place; and thus, taking an awful toll with each few feet gained, I came to the spacious glass-walled watchtower of Kadabra.

Here my companions clustered ready to take my place, and for a moment's respite I stepped to one side while they held the enemy off.

From the lofty perch a view could be had for miles in every direction. Toward the south stretched the rugged, ice-clad waste to the edge of the mighty barrier. Toward the east and west, and dimly toward the north I descried other Okarian cities, while in the immediate foreground, just beyond the walls of Kadabra, the grim guardian shaft reared its somber head.

Then I cast my eyes down into the streets of Kadabra, from which a sudden tumult had arisen, and there I saw a battle raging, and beyond the city's walls I saw armed men marching in great columns toward a near-by gate.

Eagerly I pressed forward against the glass wall of the observatory, scarce daring to credit the testimony of my own eyes. But at last I could doubt no longer, and with a shout of joy that rose strangely in the midst of the cursing and groaning of the battling men at the entrance to the chamber, I called to Tardos Mors.

As he joined me I pointed down into the streets of Kadabra and to the advancing columns beyond, above which floated bravely in the arctic air the flags and banners of Helium.

An instant later every red man in the lofty chamber had seen the inspiring sight, and such a shout of thanksgiving arose as I warrant never before echoed through that age-old pile of stone.

But still we must fight on, for though our troops had entered Kadabra, the city was yet far from capitulation, nor had the palace been even assaulted. Turn and turn about we held the top of the runway while the others feasted their eyes upon the sight of our valiant countrymen battling far beneath us.

Now they have rushed the palace gate! Great battering-rams are dashed against its formidable surface. Now they are repulsed by a deadly shower of javelins from the wall's top!

Once again they charge, but a sortie by a large force of Okarians from an intersecting avenue crumples the head of the column, and the men of Helium go down, fighting, beneath an overwhelming force.

The palace gate flies open and a force of the jeddak's own guard, picked men from the flower of the Okarian army, sallies forth to shatter the broken regiments. For a moment it looks as though nothing could avert defeat, and then I see a noble figure upon a mighty thoat—not the tiny thoat of the red man, but one of his huge cousins of the dead sea bottoms.

The warrior hews his way to the front, and behind him rally the disorganized soldiers of Helium. As he raises his head aloft to fling a challenge at the men upon the palace walls I see his face, and my heart swells in pride and happiness as the red warriors leap to the side of their leader and win back the ground that they had but just lost—the face of him upon the mighty thoat is the face of my son—Carthoris of Helium.

At his side fights a huge Martian war-hound, nor did I need a second look to know that it was Woola—my faithful Woola who had thus well performed his arduous task and brought the succoring legions in the nick of time.

"In the nick of time?"

Who yet might say that they were not too late to save, but surely they could avenge! And such retribution as that unconquered army would deal out to the hateful Okarians! I sighed to think that I might not be alive to witness it.

Again I turned to the windows. The red men had not yet forced the outer palace wall, but they were fighting nobly against the best that Okar afforded—valiant warriors who contested every inch of the way.

Now my attention was caught by a new element without the city wall—a great body of mounted warriors looming large above the red men. They were the huge green allies of Helium—the savage hordes from the dead sea bottoms of the far south.

In grim and terrible silence they sped on toward the gate, the padded hoofs of their frightful mounts giving forth no sound. Into the doomed city they charged, and as they wheeled across the wide plaza before the palace of the Jeddak of Jeddaks I saw, riding at their head, the mighty figure of their mighty leader—Tars Tarkas, Jeddak of Thark.

My wish, then, was to be gratified, for I was to see my old friend battling once again, and though not shoulder to shoulder with him, I, too, would be fighting in the same cause here in the high tower of Okar.

Nor did it seem that our foes would ever cease their stubborn attacks, for still they came, though the way to our chamber was often clogged with the bodies of their dead. At times they would pause long enough to drag back the impeding corpses, and then fresh warriors would forge upward to taste the cup of death.

I had been taking my turn with the others in defending the approach to our lofty retreat when Mors Kajak, who had been watching the battle in the street below, called aloud in sudden excitement. There was a note of apprehension in his voice that brought me to his side the instant that I could turn my place over to another, and as I reached him he pointed far out across the waste of snow and ice toward the southern horizon.

"Alas!" he cried, "that I should be forced to witness cruel fate betray them without power to warn or aid; but they be past either now."

As I looked in the direction he indicated I saw the cause of his perturbation. A mighty fleet of fliers was approaching majestically toward Kadabra from the direction of the ice-barrier. On and on they came with ever increasing velocity.

"The grim shaft that they call the Guardian of the North is beckoning to them," said Mors Kajak sadly, "just as it beckoned to Tardos Mors and his great fleet; see where they lie, crumpled and broken, a grim and terrible monument to the mighty force of destruction which naught can resist."

I, too, saw; but something else I saw that Mors Kajak did not; in my mind's eye I saw a buried chamber whose walls were lined with strange instruments and devices.

In the center of the chamber was a long table, and before it sat a little, pop-eyed old man counting his money; but, plainest of all, I saw upon the wall a great switch with a small magnet inlaid within the surface of its black handle.

Then I glanced out at the fast-approaching fleet. In five minutes that mighty armada of the skies would be bent and worthless scrap, lying at the base of the shaft beyond the city's wall, and yellow hordes would be loosed from another gate to rush out upon the few survivors stumbling blindly down through the mass of wreckage; then the apts would come. I shuddered at the thought, for I could vividly picture the whole horrible scene.

Quick have I always been to decide and act. The impulse that moves me and the doing of the thing seem simultaneous; for if my mind goes through the tedious formality of reasoning, it must be a subconscious act of which I am not objectively aware. Psychologists tell me that, as the subconscious does not reason, too close a scrutiny of my mental activities might prove anything but flattering; but be that as it may, I have often won success while the thinker would have been still at the endless task of comparing various judgments.

And now celerity of action was the prime essential to the success of the thing that I had decided upon.

Grasping my sword more firmly in my hand, I called to the red man at the opening to the runway to stand aside.

"Way for the Prince of Helium!" I shouted; and before the astonished yellow man whose misfortune it was to be at the fighting end of the line at that particular moment could gather his wits together my sword had decapitated him, and I was rushing like a mad bull down upon those behind him.

"Way for the Prince of Helium!" I shouted as I cut a path through the astonished guardsmen of Salensus Oll.

Hewing to right and left, I beat my way down that warrior-choked spiral until, near the bottom, those below, thinking that an army was descending upon them, turned and fled.

The armory at the first floor was vacant when I entered it, the last of the Okarians having fled into the courtyard, so none saw me continue down the spiral toward the corridor beneath.

Here I ran as rapidly as my legs would carry me toward the five corners, and there plunged into the passageway that led to the station of the old miser.

Without the formality of a knock, I burst into the room. There sat the old man at his table; but as he saw me he sprang to his feet, drawing his sword.

With scarce more than a glance toward him I leaped for the great switch; but, quick as I was, that wiry old fellow was there before me.

How he did it I shall never know, nor does it seem credible that any Martian-born creature could approximate the marvelous speed of my earthly muscles.

Like a tiger he turned upon me, and I was quick to see why Solan had been chosen for this important duty.

Never in all my life have I seen such wondrous swordsmanship and such uncanny agility as that ancient bag of bones displayed. He was in forty places at the same time, and before I had half a chance to awaken to my danger he was like to have made a monkey of me, and a dead monkey at that.

It is strange how new and unexpected conditions bring out unguessed ability to meet them.

That day in the buried chamber beneath the palace of Salensus Oll I learned what swordsmanship meant, and to what heights of sword mastery I could achieve when pitted against such a wizard of the blade as Solan.

For a time he liked to have bested me; but presently the latent possibilities that must have been lying dormant within me for a lifetime came to the fore, and I fought as I had never dreamed a human being could fight.

That that duel-royal should have taken place in the dark recesses of a cellar, without a single appreciative eye to witness it has always seemed to me almost a world calamity—at least from the viewpoint Barsoomian, where bloody strife is the first and greatest consideration of individuals, nations, and races.

I was fighting to reach the switch, Solan to prevent me; and, though we stood not three feet from it, I could not win an inch toward it, for he forced me back an inch for the first five minutes of our battle.

I knew that if I were to throw it in time to save the oncoming fleet it must be done in the next few seconds, and so I tried my old rushing tactics; but I might as well have rushed a brick wall for all that Solan gave way.

In fact, I came near to impaling myself upon his point for my pains; but right was on my side, and I think that that must give a man greater confidence than though he knew himself to be battling in a wicked cause.

At least, I did not want in confidence; and when I next rushed Solan it was to one side with implicit confidence that he must turn to meet my new line of attack, and turn he did, so that now we fought with our sides towards the coveted goal—the great switch stood within my reach upon my right hand.

To uncover my breast for an instant would have been to court sudden death, but I saw no other way than to chance it, if by so doing I might rescue that oncoming, succoring fleet; and so, in the face of a wicked sword-thrust, I reached out my point and caught the great switch a sudden blow that released it from its seating.

So surprised and horrified was Solan that he forgot to finish his thrust; instead, he wheeled toward the switch with a loud shriek—a shriek which was his last, for before his hand could touch the lever it sought, my sword's point had passed through his heart.

The Tide of Battle

*

But solan's last loud cry had not been without effect, for a moment later a dozen guardsmen burst into the chamber, though not before I had so bent and demolished the great switch that it could not be again used to turn the powerful current into the mighty magnet of destruction it controlled.

The result of the sudden coming of the guardsmen had been to compel me to seek seclusion in the first passageway that I could find, and that to my disappointment proved to be not the one with which I was familiar, but another upon its left.

They must have either heard or guessed which way I went, for I had proceeded but a short distance when I heard the sound of pursuit. I had no mind to stop and fight these men here when there was fighting aplenty elsewhere in the city of Kadabra—fighting that could be of much more avail to me and mine than useless life-taking far below the palace.

But the fellows were pressing me; and as I did not know the way at all, I soon saw that they would overtake me unless I found a place to conceal myself until they had passed, which would then give me an opportunity to return the way I had come and regain the tower, or possibly find a way to reach the city streets.

The passageway had risen rapidly since leaving the apartment of the switch, and now ran level and well lighted straight into the distance as far as I could see. The moment that my pursuers reached this straight stretch I would be in plain sight of them, with no chance to escape from the corridor undetected.

Presently I saw a series of doors opening from either side of the corridor, and as they all looked alike to me I tried the first one that I reached. It opened into a small chamber, luxuriously furnished, and was evidently an ante-chamber off some office or audience chamber of the palace.

On the far side was a heavily curtained doorway beyond which I heard the hum of voices. Instantly I crossed the small chamber, and, parting the curtains, looked within the larger apartment.

Before me were a party of perhaps fifty gorgeously clad nobles of the court, standing before a throne upon which sat Salensus Oll. The Jeddak of Jeddaks was addressing them.

"The allotted hour has come," he was saying as I entered the apartment; "and though the enemies of Okar be within her gates, naught may stay the will of Salensus Oll. The great ceremony must be omitted that no single man may be kept from his place in the defenses other than the fifty that custom demands shall witness the creation of a new queen in Okar.

"In a moment the thing shall have been done and we may return to the battle, while she who is now the Princess of Helium looks down from the queen's tower upon the annihilation of her former countrymen and witnesses the greatness which is her husband's."

Then, turning to a courtier, he issued some command in a low voice.

The addressed hastened to a small door at the far end of the chamber and, swinging it wide, cried: "Way for Dejah Thoris, future Queen of Okar!"

Immediately two guardsmen appeared dragging the unwilling bride toward the altar. Her hands were still manacled behind her, evidently to prevent suicide.

Her disheveled hair and panting bosom betokened that, chained though she was, still had she fought against the thing that they would do to her.

At sight of her Salensus Oll rose and drew his sword, and the sword of each of the fifty nobles was raised on high to form an arch, beneath which the poor, beautiful creature was dragged toward her doom.

A grim smile forced itself to my lips as I thought of the rude awakening that lay in store for the ruler of Okar, and my itching fingers fondled the hilt of my bloody sword.

As I watched the procession that moved slowly toward the throne—a procession which consisted of but a handful of priests, who followed Dejah Thoris and the two guardsmen—I caught a fleeting glimpse of a black face peering from behind the draperies that covered the wall back of the dais upon which stood Salensus Oll awaiting his bride.

Now the guardsmen were forcing the Princess of Helium up the few steps to the side of the tyrant of Okar, and I had no eyes and no thoughts for aught else. A priest opened a book and, raising his hand, commenced to drone out a sing-song ritual. Salensus Oll reached for the hand of his bride.

I had intended waiting until some circumstance should give me a reasonable hope of success; for, even though the entire ceremony should be completed, there could be no valid marriage while I lived. What I was most concerned in, of course, was the rescuing of Dejah Thoris—I wished to take her from the palace of Salensus Oll, if such a thing were possible; but whether it were accomplished before or after the mock marriage was a matter of secondary import.

When, however, I saw the vile hand of Salensus Oll reach out for the hand of my beloved princess I could restrain myself no longer, and before the nobles of Okar knew that aught had happened I had leaped through their thin line and was upon the dais beside Dejah Thoris and Salensus Oll.

With the flat of my sword I struck down his polluting hand; and grasping Dejah Thoris round the waist, I swung her behind me as, with my back against the draperies of the dais, I faced the tyrant of the north and his roomful of noble warriors.

The Jeddak of Jeddaks was a great mountain of a man—a coarse, brutal beast of a man—and as he towered above me there, his fierce black whiskers and mustache bristling in rage, I can well imagine that a less seasoned warrior might have trembled before him.

With a snarl he sprang toward me with naked sword, but whether Salensus Oll was a good swordsman or a poor I never learned; for with Dejah Thoris at my back I was no longer human—I was a superman, and no man could have withstood me then.

With a single, low: "For the Princess of Helium!" I ran my blade straight through the rotten heart of Okar's rotten ruler, and before the white, drawn faces of his nobles Salensus Oll rolled, grinning in horrible death, to the foot of the steps below his marriage throne.

For a moment tense silence reigned in the nuptial-room. Then the fifty nobles rushed upon me. Furiously we fought, but the advantage was mine, for I stood upon a raised platform above them, and I fought for the most glorious woman of a glorious race, and I fought for a great love and for the mother of my boy.

And from behind my shoulder, in the silvery cadence of that dear voice, rose the brave battle anthem of Helium which the nation's women sing as their men march out to victory.

That alone was enough to inspire me to victory over even greater odds, and I verily believe that I should have bested the entire roomful of yellow warriors that day in the nuptial chamber of the palace at Kadabra had not interruption come to my aid.

Fast and furious was the fighting as the nobles of Salensus Oll sprang, time and again, up the steps before the throne only to fall back before a sword hand that seemed to have gained a new wizardry from its experience with the cunning Solan.

Two were pressing me so closely that I could not turn when I heard a movement behind me, and noted that the sound of the battle anthem had ceased. Was Dejah Thoris preparing to take her place beside me?

Heroic daughter of a heroic world! It would not be unlike her to have seized a sword and fought at my side, for, though the women of Mars are not trained in the arts of war, the spirit is theirs, and they have been known to do that very thing upon countless occasions.

But she did not come, and glad I was, for it would have doubled my burden in protecting her before I should have been able to force her back again out of harm's way. She must be contemplating some cunning strategy, I thought, and so I fought on secure in the belief that my divine princess stood close behind me.

For half an hour at least I must have fought there against the nobles of Okar ere ever a one placed a foot upon the dais where I stood, and then of a sudden all that remained of them formed below me for a last, mad, desperate charge; but even as they advanced the door at the far end of the chamber swung wide and a wild-eyed messenger sprang into the room.

"The Jeddak of Jeddaks!" he cried.