Duel on Syrtis by Poul Anderson - Bold and ruthless, he was famed throughout the System as a big-game hunter. From the firedrakes of Mercury to the ice-crawlers of Pluto, he'd slain them all. But his trophy-room lacked one item; and now Riordan swore he'd bag the forbidden game that roamed the red deserts ... a Martian!

The night whispered the message. Over the many miles of loneliness it was borne, carried on the wind, rustled by the half-sentient lichens and the dwarfed trees, murmured from one to another of the little creatures that huddled under crags, in caves, by shadowy dunes. In no words, but in a dim pulsing of dread which echoed through Kreega's brain, the warning ran—

They are hunting again.

Kreega shuddered in a sudden blast of wind. The night was enormous around him, above him, from the iron bitterness of the hills to the wheeling, glittering constellations light-years over his head. He reached out with his trembling perceptions, tuning himself to the brush and the wind and the small burrowing things underfoot, letting the night speak to him.

Alone, alone. There was not another Martian for a hundred miles of emptiness. There were only the tiny animals and the shivering brush and the thin, sad blowing of the wind.

The voiceless scream of dying traveled through the brush, from plant to plant, echoed by the fear-pulses of the animals and the ringingly reflecting cliffs. They were curling, shriveling and blackening as the rocket poured the glowing death down on them, and the withering veins and nerves cried to the stars.

Kreega huddled against a tall gaunt crag. His eyes were like yellow moons in the darkness, cold with terror and hate and a slowly gathering resolution. Grimly, he estimated that the death was being sprayed in a circle some ten miles across. And he was trapped in it, and soon the hunter would come after him.