Thus he preferred to be alone. Whenever he decently could, he traveled alone, and worked alone. * * * * * He was alone now, hurtling through a barren region of space toward Rift Seventy-one and the vortex which was next upon his list. In the interests of time-saving and safety--minions of the Drug Syndicate had taken him by force from a passenger liner not long since, in order to save from extinction a vortex which they were using in their nefarious business--he was driving a light cruiser converted to one-man control. In one special hold lay his vortex-blasting flitter; in others were his vast assortment of duodec bombs and other stores and supplies. And as he drove along through those strangely barren, unsurveyed wastes, he thought, as always, of Jo. He had not as yet actually courted death. He had not considered such courting necessary. Everyone had supposed, and he himself hoped, that a vortex would get him in spite of everything he could do. That hope was gone--it was as simple to blow out a vortex as a match. But it would be _so_ easy to make a slip--and a tiny little bit of a slip would be enough.... No, the Vortex Blaster simply couldn't put such a black mark as that on his record. But if something else came along he might lean just a trifle toward it.... A distress call came in, pitifully, woefully weak--the distress call of a warm-blooded oxygen-breather! It would have to be weak, upon his low-powered apparatus, Cloud reflected, as he sprang to attention and began to manipulate his controls. He was a good eighty-five parsecs--at least an hour at maximum blast--from the nearest charted traffic route. He could not possibly get there in time. When anything happened in space it usually happened fast--it was almost always a question of seconds, not of hours. Cloud worked fast, but even so he had no time even to acknowledge--he was just barely in time to catch upon his communicator-plate a tiny but brilliant flash of light as the frantic sending ceased. Whatever had occurred was already history. Nevertheless, he had to investigate. He had received the call and it was possible, even probable, that no other spaceship had been within range. Law and tradition were alike adamant that every such call must be heeded by any vessel receiving it, of whatever class or upon whatever mission bound. He hurled out a call of his own, with all of his small power. No reply--the ether was empty. Driving toward the scene of catastrophe at max, Cloud did what little he could do. He had never witnessed a space emergency before, but he knew the routine.