characteristic of Hawk Carse that he never even considered calling on Wilson's resources of men and weapons to help him. A Hawk he was: wiry, fierce-clawed, bold against odds and danger, most capable and deadly when striking alone....

After scanning the whole project, Carse attended to other needs. He ate some of the akalot fruit spilled over the floor of the adjoining room; opened a can of water and drank deeply; limbered his muscles well; even rested for five minutes. Then he was ready to leave.

He soon was again in the cold space-suit, fastening on the helmet. He left the face-plate open. The left mitten he hinged back, so as to be able to grip the ray-gun in his bare hand. Then, a looming giant shadow in the darkness, he shuffled to the rear window-port.

Carse steadied himself on the sill. The night-bedlam from the Street of the Sailors, punctuated by far, hungry bellows from swamp monsters, sounded in his ears. Enemies, human and animal, ringed him in Kurgo's house: but up above lay a clean, cold highway, an open highway, stretching straight to the heart of the danger which was his destination. He turned the mitten-switch over to quick repulsion and leaped up to the waiting heavens.

On the ground was a world of night: a mile up showed a great circle of black, one edge of which was marked by a faint, eery glow from further-setting Jupiter.

Save for that far-off spectral hint of the giant occulted planet, Hawk Carse sped in darkness. Through the open face-plate the night wind buffeted his emotionless, stone-set face: his suit whistled a song of speed as the gusts laced by it. Down and ahead his direction rod pointed, and with ever-gathering momentum he followed its leading finger. The lights of Porno dwindled to points; grew yet finer, then were gone. Several times a sparse cluster of other lights, lonely in the black tide of III's surface, ran beneath him, signaling a ranch. The last of these melted into the ink behind, and there was a period unrelieved by sign of man's presence below.

And then at last one bright solitary spot of light appeared, far ahead. It was a danger signal to the Hawk. He had to descend at once. From then on, speed had to be forsaken for caution. Watchful eyes were beneath that light, lying keen on the heavens; a whole intricate offense and defense system surrounded it. It was the central watch-beacon of Lar Tantril's ranch.

Carse swooped low.

He came into the night-world of the surface. No faint-lit horizon showed; there was only the darkness, and darker shadows peopling it. At the height of a mile there had been no signs of the satellite's native life, but at an elevation scarcely above the treetops the flying man was brought all too close to the reality of the denizens of the gloomy jungle below. Out of the black smother came clues to the life within it: sounds of monstrous bodies moving through the undergrowth and mud, recurring death-screams, howls and angry chatterings....

This below; there was more above. He was not the only living thing that soared in the night. Swift fleeting batlike shapes would appear from nowhere for one sharp second, would beset him one after another in an almost constant stream, thinking his comparatively clumsy, bloated bulk easy prey, and then be gone. He snapped shut his face-plate under their assault. Sometimes there came different, more powerful wings, and he would duck in mechanical reaction, sensing the wings sweep past, often feeling them as, with sharp pecks and quick thudding blows, they sought to stun him. But the suit was stout; the repulsed attackers could only follow a little, glaring at him with fire-green malevolent eyes, then leave to seek smaller prey.

The watch-beacon began to wink more often through the ranks of intervening trees as he neared the ranch. Carse was gliding so low that often branches raked and twisted him in his course. His low transit allowed one tree to loose great peril upon him.

The tree loomed a black giant in his path. Fifty feet away, he was swerving to wind around it when he noticed its dark upper branches a-tremble. He had only this for warning when, with chilling surprise, what appeared to be the entire top of the tree rose, severed itself completely from the rest and soared right out to meet him.

A shape from a nightmare, it slid over the adventurer. He saw two green-glowing saucer-sized eyes; heard the wings rattling bonily as they spread to full thirty feet; heard the monster's life-thirsty scream is it plunged. The stars were blotted out. It was upon him.

But even in the sudden confusion of the attack, Carse knew the creature for what it was: a full-grown specimen of the giant carnivorous lemak, a seldom-seen, dying species, too clumsy, too slow, too huge to survive. His ray-gun came around, but he was caught in a feathered maelstrom and knocked too violently around to use it. Without pause the lemak's claws raked his suit. Unable to rend the tough fabric, it resorted to another method. With a strength so enormous that it could overcome the force of the gravity-plates and his forward momentum, the creature tossed him free. Dizzy, he hurtled upward. But he knew that the bird's purpose was to impale him on the long steely spike of its beak as he came twisting down.

The lemak poised below, snout and spear-like beak raised. But it waited in vain, for Carse did not come dropping down. A touch of the control switch and he stayed at the new level, collecting himself. The lemak, puzzled and angry, wheeled up to see what had become of the victim that did not descend, and found instead a searing needle of heat which burnt through its broad right wing. Then, screaming with pain and in a frenzy to escape, it went with a rush into the far darkness.

The Hawk dropped low again, hoping that his gun's quick flash had not been observed. He had not wished to wound the lemak mortally, for no matter how accurate his shot the monster would take long to die, and scream and thrash as it did so. One short spit of orange was preferable to a prolonged hullabaloo. But even that might have betrayed him....

With elaborate caution, he reconnoitered Lar Tantril's ranch.

From above, the ranch clearing was a pool of faint light contained in black leagues of jungle and the edge of the Great Briney. Slanting shadows and the dark bulks of buildings that were unlit rendered the details vague, but under prolonged scrutiny the appointments of the ranch became visible.

The clearing was a circle some two hundred yards in diameter. Just inside the jungle wall was the first line of protection, a steel-barbed, twenty-foot-high fence, its strong corded links interwoven with electrified wires. Well within this fence stood five buildings, low, squat and one-storied, four of them forming a broken square around the central fifth. Two buildings were pierced by low rows of lighted windows, evidence that they were the barracks of the workers; two others, devoted to the processing of the isuan weed, were now dark and silent. The central building was smaller, with window-ports that were glowing eyes in the smooth metal walls. It was the dwelling of the master, Lar Tantril.

Close to the central building rose a hundred-foot tower, topped by the watch-beacon. At three equi-distant points around the encompassing fence, small, square platforms were held sixty feet aloft by mast-like triangular towers, up which foot-rungs led. And on each platform could be made out the figure of a Venusian guard.

Ceaselessly these guards turned and scanned the jungle, the heavens, the unbroken dark prairie of the lake, alert for anything of suspicion. Lar Tantril had good reasons for maintaining a constant watch over his stronghold, and his guards' eyes were sharpened by knowledge of the severe payment laxness would bring. Close at hand in the platforms were knobs which,