He wondered what was happening to those other Thorns, in their hodgepodged destinies. Thorn III in World II--had he died in the instant of his arrival there, or had the Servants noted the personality-change in time and perhaps spared him? Thorn II in World I. Thorn I in World III. It was like some crazy game--some game devised by a mad, cruel god. And yet what was the whole universe, so far as it had been revealed to him, but a mad, cruel pageantry? The Dawn myth was right--there were serpents gnawing at every root of the cosmic ash Yggdrasil. In three days he had seen three worlds, and none of them were good. World III, wrecked by subtronic power, cold battlefield for a hopeless last stand. World II, warped by paternalistic tyranny, smoldering with hate and boredom. World I, a utopia in appearance, but lacking real stamina or inward worth, not better than the others--only luckier. Three botched worlds. He started. It was as if, with that last thought, something altogether outside his mind had attached itself to his mind in the most intimate way imaginable. He had the queerest feeling that his thoughts had gained power, that they were no longer locked-in and helpless except for their ability to control a puny lever-assembly of bones and contractile tissue, that they could reach out of his mind like tentacles and move things, that they had direct control of a vastly more competent engine. A faint sound up the tunnel recalled his altered mind to his present predicament. It might have been a tiny scrape of claws on rock. It was not repeated. He gripped his knife. Perhaps one of the beasts was attempting a surprise attack. If only there were some light-- * * * * * A yellowish flame, the color of the woodfire he had been visualizing, flared up without warning a few feet ahead, casting shafts of ruddy glare and shadow along the irregular tunnel. It lit up the muzzles of a gaunt gray dog and a scarred black cat that had been creeping toward him, side by side. For an instant surprise froze them. Then the dog backed off frantically, with a yelp of panic. The cat snarled menacingly and stared wildly at the flame, as if desperately trying to figure out its _modus operandi_. But, with Thorn's thought, the flame advanced and the cat gave ground before it. At first it only backed, continuing to snarl and stare. Then it turned tail, and answering in a great screech the questioning mews and growls that had been coming down the tunnel, fled as if from death. The flame continued to advance, changing color when Thorn thought of daylight. And as Thorn edged and squirmed along, it seemed to him that somehow his way was made easier. The tunnel heightened, widened. He emerged in the outer chamber in time to hear a receding rattle of gravel.