SPACE-WOLF By RAY CUMMINGS The lure of precious zolonite drew Morgan to barren Titan--to find a weird beast-empire ruled by a cold-eyed Earth-girl queen. [Transcriber's Note: This etext was produced from Planet Stories Summer 1941. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] Solo Morgan laid his small portable spectroscope on the rock and sat down beside it to rest. He was panting, breathless from the climb up to these precipitous heights, even though the gravity here on Titan was less than that of Earth. It was night. The pallid little Sun had swiftly set behind a distant line of jagged mountain peaks. At the other horizon Saturn was rising, a monstrous glowing ball with a foreshortened segment of the rings spreading in a great iridescent flame of pale prismatic color across half the sky. From here, Solo Morgan could just see the tiny blob of his one-man space-ship where he had left it down in the hollow. "He travels fastest who travels alone," had always been Solo Morgan's motto. But now at the age of twenty-eight, a big, rangy, handsome fellow with curly, crisp brown hair, it seemed to Morgan that he was somewhat a failure. So far he had failed to strike it rich; and a single big strike had always been what he was after. He set his jaw grimly as he thought of it. Well, now was the time. There was a lode of Zolonite here on this moon of Saturn. The spectroscopic evidence of it had been faint, yet unmistakable. Doubtless it was a single, small concentration; Zolonite perhaps in an almost pure state. Immensely more valuable than radium; more valuable, than any other radioactive substance known to earth. Morgan stood up, rested, to continue his climb. By all that he had been able to determine from the faint spectroscopic bands, and the intensity registers which he had so carefully used in that circling flight around the bleak, uninhabited satellite, the Zolonite deposit must be somewhere in this neighborhood. The radiometer had seemed to indicate gathering strength as he climbed. Perhaps it would be beyond this next rise, where now he could see a ragged plateau thick with a lush, fantastic blue-gray vegetation. He started forward; and suddenly from nearby there was a sharp crack, an explosive report with a stab of yellow-red flame that mingled with the iridescent sheen of Saturn's glow. And there was a ping, a tanging whistle past his head with a thud against one of the nearby rocks where a leaden pellet flattened itself and dropped beside him.