I do not remember that any of us spoke, when Sarto Sen's voice had ceased. And yet, stunned as we were by the thing he had told us, our knowledge was in some ways a relief. We had discovered, at least, what had swerved Alto from its course, and if science and intelligence alone could cause the sun to veer from its path, science and intelligence might steer it back into that path.

When I said as much to Sarto Sen his face lit up. "You are right, Jan Tor!" he exclaimed. "There's a chance! And even as Mur Dak predicted, that chance depends on us. For if we can escape from here and get back to the Eight Worlds, we can come back with a greater force and crush these globe-men, and use their own force-projector to swerve their sun out of its present path."

"But why go back to the Eight Worlds?" objected Hal Kur. "Why not get up to that platform, if we escape, and use the projector ourselves?"

Sarto Sen shook his head. "It's impossible," he told the big engineer. "If we escape from here at all it will be by night, for by day the rooms and corridors outside are thronged with globe-men. And by night we could do nothing, for Alto, the sun itself, would not then be in the sky. Nor could we wait for its rising, there on the platform, since our escape would soon be discovered, and we should be attacked there. Our only chance is to get out of here by night, make our way up to the platform, and make a dash for our ship. If we can do that we can flash back to our own universe and get the help we need to crush these globe-people."

"But when shall we make the attempt?" I asked, and my heart leaped at Sarto Sen's answer. "Tonight! The sooner we get out the better. A few hours after dark we'll try it." He went on, then, to unfold his plan for escape, and we listened intently, while big Hal Kur's eyes gleamed at the prospect of action. Our plan was simple enough, and likely enough to fail, we knew, but it was our only chance. What course we would follow after getting free of our cell we did not even discuss. There was nothing for it but to make our break and trust to luck to bring us through the thousand obstacles that lay between us and the tower-platform which held our ship.

The remaining hours of that day were the longest I have ever experienced. The slanting shafts of light from the loopholes seemed to move across the room with infinite slowness, while we awaited impatiently the coming of night. At last the light-bars darkened, disappeared, as the dying crimson sun sank beyond the rim of the world outside. Darkness had descended on that world, now, and here and there among the buildings, and streets of the weird city outside flared points of red light. Still we waited, until the vague, half-heard sounds of soft movement and thrumming speech outside had lessened, ceased, until at last the only sound to be heard was an occastional shuffling movement of the guard outside the door.

Sarto Sen rose, making to us a signal of readiness, and then threw himself flat on the floor of the room's center. At the farther side of the cell lay Hal Kur and Nar Lon, as though sleeping, with a thick roll of garments between them which resembled another sleeping figure. These preparations made, I stepped to the door and stationed myself directly inside it, to one side, my heart pounding now as the moment for action approached.

All was ready, and seeing this, Sarto Sen began his part. Lying there on the floor he gave utterance to a low, deep groan. There was silence for a moment, and then another low moan arose from him, and now I heard a shuffling movement outside the door as the guard there approached to listen. Again Sarto Sen groaned, terribly, and after a moment's pause there came a rattling of bolts as the guard slid them aside. I flattened myself back against the wall, and in a second the door opened.

Even in the darkness, glancing sidewise, I could make out the round, globular form of the guard, his eyes peering into our cell and his fire-disk held out in cautious readiness. A moment he paused, peering at the three dim figures lying across the room; then, as if satisfied, turned his eyes back upon Sarto Sen, at the same moment taking a step inside the door. And with a single bound I was upon him.

* * *

Of all the fights in my career I place that struggle there in the darkness with our globe-man guard as the most horrible. I had leaped with the object of wresting the deadly fire-disk from him before he could make use of it, and fortunately the force of my spring had knocked it from his grasp. His short, thin arms clutched at me with surprising power, though, while the insect-like lower limbs grasped my own and pulled me instantly to the floor. A moment I rolled there in mad combat, striving to gain a hold on my opponent's smooth, round body, and then a thing happened the memory of which sickens me even now. For as my hands clutched for a hold on the sleek, cold, globular body, that body suddenly collapsed beneath my weight, breaking like a skinful of water and spurting out a mass of semi-liquid jellylike substance which flowed across the floor in a shining, malodorous mass. Fleshlike as they were in appearance, these creatures were but globular shells of ooze.

Sick to my very soul I rose to my feet, looking wildly at the others, who had rushed to aid me. There had been no cry from our guard during that moment of combat and the silence around us was unchanged. Sarto Sen was already at the door, peering down the corridor, and in a moment we were out of the cell and making our way stealthily down the long hall. As we left the cell, though, my foot struck against something, and reaching down I picked up the little fire-disk of our guard. As we crept down the long corridor I clutched it tightly in my hand.

The long hall, dimly lit by a few red flares set in its walls, seemed quite deserted. Ahead, though, shone a square of brighter light, and we knew this to be the spot where the corridor crossed the anteroom of the guards. Nearer we crept toward it, even more stealthily, until at last we crouched at the edge of the open doorway, staring into the bright-lit anteroom.

There were but four of the globe-men guards in it now, and three of these were apparently sleeping, resting with closed eyes on a long, low seat against the wall. The other, though was moving restlessly about the room, the deadly fire-disk in his grasp ready for action. We must cross this room, I knew, to reach the hall of the great pillar, yet it would mean instant death to attempt it beneath the eyes of this creature.

A moment we crouched there, undecided whether or not to chance all in a rush for the one wakeful guard, when the entire matter was suddenly taken out of our hands. The globe-man, in his pacing about the room, had come within a few feet of the doorway outside which we crouched, and at that very moment the silence around us was shattered by a sound which came to my ears like the thunder of an explosion. Hal Kur had sneezed!

With the sound the pacing guard wheeled instantly and confronted us, uttering a thrumming cry which brought the other three instantly to their feet. We were evenly matched, four to four, and before they had time to use their deadly disks we were upon them. The next moment was one of wild confusion, a whirling of men and globular bodies about the little room, a babel of hoarse shouts and thrumming cries. Clinging desperately to one of the slippery creatures I had a momentary glimpse of Hal Kur raising one of the guards bodily into the air and crashing him down on the hard floor like a smashed egg. Then a powerful twist of my opponent flung me sidewise out of the combat.

I staggered to my feet and saw that one guard lay broken and dead on the floor while the other three had slipped from our clutches and were retreating through the doorway by which we had come. Abruptly they paused, and the arm of one came up with a fire-disk trained full upon us.

In that moment I became aware of something in my hand to which I had clung through all the m�l�e, something round and thin and hard, with a raised button on its side. Instinctively, entirely without thought, I raised the thing toward the three guards opposite, pressing the button on its side. A little ball of rosy fire seemed to leap out from my hand with the action, flicking sighingly through the air and striking the group of globe-men squarely. There was a roar of flame, a moment's flaring up of raging pink fire, and then flame and guards alike had vanished.

I turned, staggered with my friends toward the door. From far behind, now, we heard deep, thrumming cries, and the shuffle of quick feet. Our escape was discovered, we knew, and our only chance lay in reaching the great pillar and its cage-lift before we were cut off, so we raced on down the corridor with our utmost speed, sparing no breath for speech. The cries behind were growing swiftly louder and nearer, and somewhere near by there was a sudden clamor of gongs. But now we were bursting recklessly into the great hall, finding it quite empty, its deep shadows dispelled only by a few feeble points of light. Into the upper darkness loomed the vast bulk of the great, slanting column, and with the last of our strength we reeled across the floor toward it.

The door in the pillar's side was open, and through it we tumbled hastily into the little cage-elevator inside. The clamor of pursuit was growing rapidly in volume, now. Frantically I fumbled with the studs in the cage's side, with which I had seen our captors operate it. There was a moment of heart-breaking delay, and then, just as the uproar of pursuit seemed about to burst into the great hall, a switch clicked beneath my fingers and instantly our cage was shooting up the shaft with tremendous speed, toward the platform above.

A moment of this thundering progress and then the car slowed, stopped. We were in absolute darkness, but before sliding aside the section of platform over us I whispered tensely to the others. "There will be guards on the platform," I told them, "but we must make away with them at once and get to the ship. It's our only chance, for there must be cage-lifts in the other pillars too, and they'll come up those after us."

With the words I touched the lever which swung aside the section of floor above us, and instantly it slid back with a metallic jarring sound that made my heart stand still. There was no sound of alarm, though, from above, so after a moment of tense waiting we rose silently from the cage and stepped out upon the platform itself.

We were standing near the edge of the platform, which was partly illuminated by splashes of ruddy light from a few flares suspended over it. Far below in the darkness lay the city of the globe-men, outlined only by a sparse peppering of twinkling crimson lights. Above stretched the splendid, star-jeweled skies, in which I could discern the brilliant yellow orb that was the sun of the Eight Worlds. And now I turned my attention back to the platform, and glancing beyond the dark, enigmatic mechanisms which loomed around us, I saw the long, gleaming bulk of our cruiser, lying still in the clear space where it had fallen. Beside it a suspended flare poured down its red light, and under the light were gathered three of the globe-men, examining intently some small mechanism on the floor.

I wondered, momentarily, whether these creatures had yet discovered the secret of our cruiser's design and operation, and then forgot my wonder as we began to creep stealthily toward them. As we crawled past a little heap of short, thick metal bars, each of us grasped one, and then crept on again. In a moment we were within a dozen paces of the unsuspecting globe-men, and at once we sprang to our feet and charged down upon them with uplifted maces.

So unexpected and so swift was our attack that the three had time only to turn toward us, half-raising their fire-disks, and then our heavy clubs had crashed down through their round, soft bodies, sending them to the floor in a sprawling oozing mass. We dropped our weapons and sprang toward the cruiser.

Its lower door was open, and instantly we were inside it.

At once Sarto Sen sprang up the stair toward the conning-tower, while Hal Kur and Nar Lon raced into the generator-room. I paused to slam shut the heavy door, its closing automatically starting the throbbing oxygen pumps, and then hastened up the stair also. Even as I did so there began the familiar humming of the vibration-generators, droning out with swiftly gathering power. And now I had reached the conning-tower, where Sarto Sen was working swiftly with the controls.

At the moment that I burst into the little room there came a sudden harsh grating of metal from outside, and then a score of high-pitched, thrumming cries. I sprang to the window, and there, across the red lit platform, a mass of dark, globular figures had suddenly poured up onto the platform's surface, from another of its pillar-lifts. They ran toward us, heard the humming of the cruiser's generators, and then stopped short. Their fire-disks swept up and a dozen balls of the destroying flame leapt toward us. But at the moment that they did so there was a swift clicking of switches beneath the hands of Sarto Sen, a sudden roar of wind, and then the red-lit platform and all on it had vanished from sight as our ship flashed out again into the void of space.