The speeding spaceship approached the planet—went inert—matched the planetary intrinsic—landed. Her air locks opened. Her crew rushed out headlong, sprang into the air, and arrowed away en masse. Then Worsel, Grand Master of Hallucinations, went blithely but intensely to work.

Thus, although he stayed at the Velan's control board instead of joining the glamoured Velantians in their rush over the unfamiliar terrain, and although the huge spaceship lifted lightly into the air and followed them, neither the fiend-possessed part of Worsel's mind, nor any of his fellows, nor through them the many Overlords, knew that either of those two things was happening. To that part of his mind Worsel's body was, under full control, flying along upon tireless wings in the midst of the crowd; to it and to all of the other Velantians and hence to the Overlords the Velan lay motionless and deserted upon the rocks far below and behind them. They watched the vessel diminish in apparent size in the distance; they saw it vanish beyond the horizon!

This was eminently tricky work, necessitating as it did such nicety of synchronization with the Delgonian's own compulsions as to be indetectable even to the monsters themselves. Worsel was, however, an expert, one of the Universe's best; he went at the task not with any doubt whatever as to his ability to carry it through, but only with an uncontrollably shivering physical urge to come to grips with the hereditary enemies of his race.

The fliers shot downward, and as a boulder-camouflaged entrance yawned open in the mountain's side Worsel closed up and shot out a widely enveloping zone of thought-screen. The Overlords' control vanished. The Velantians, realizing instantaneously what had happened, flew madly back to their ship. They jammed through the air locks, flashed to their posts. The cavern's gates had closed by then, but the monsters had no screen fit to cope with the Velan's tremendous batteries. Down they went. Barriers, bastions, and a considerable portion of the mountain's face flamed away in fiery vapor or flowed away in molten streams. Through reeking atmosphere, over red-hot debris, the armored Velantians flew to the attack.

The Overlords had, however, learned. This cavern, as well as being hidden, was defended by physical, as well as mental, means. There were inner barriers of metal and of force, there were armed and armored defenders who, dominated completely by the monsters, fought with the callous fury of the robots which in effect they were. Nevertheless, against all opposition, the attackers bored relentlessly in. Heavy semiportables blazed, hand-to-hand combat raged in the narrow confines of that noisome tunnel. In the wavering, glaring light of the contending beams and screens, through the hot and rankly stinking steam billowing away from the reeking walls, the invaders fought their way. One by one and group by group the defenders died where they stood and the Velantians drove onward over their burned and dismembered bodies.

Into the cavern at last. To the Overlords. Overlords! They, who for ages had preyed upon generation after generation of helpless Velantians, torturing their bodies to the point of death and then devouring ghoulishly the life-forces which their mangled bodies could no longer retain!

Worsel and his crew threw away their DeLameters. Only when it is absolutely necessary does any Velantian use any artificial weapon against any Overlord of Delgon. He is too furious, too berserk, to do so. He is scared to the core of his being; the cold grue of a thousand fiendishly eaten ancestors has bred that fear into the innermost atoms of his chemistry. But against that fear, negating and surmounting it, is a hatred of such depth and violence as no human being has ever known; a starkly savage hatred which can be even partially assuaged only by the ultimate of violences—by rending his foe apart member by member; by actually feeling the Delgonian's life depart under gripping hands and tearing talons and constricting body and shearing tail.

It is best, then, not to go into too fine detail as to this conflict. Since there were almost a hundred of the Delgonians—insensately vicious fighters when cornered—and since their physical make-up was very similar to the Velantians' own, many of Worsel's troopers died. But since the Velan carried over fifteen hundred and since less than half of her personnel could even get into the cavern, there were plenty of them left to operate and to fight the spaceship.