It was not a difficult climb, for there were niches along the way where the alien mechanics who had once made repairs had either rested or done some of their work. And there were also grilles on each level which gave him at least a partial view of what lay beyond. His guess was right; he recognized the main hall of the Center as he climbed past the grid there, heading up toward those levels where he was sure the leaders of the aliens had their private quarters. Twice he paused to look in upon conferences of the gaudily wrapped and painted civilians, but, since he could not understand what they were saying, it was a waste of time to linger. He was some eight floors up when chance, luck, or that mysterious something which had brought him into this venture, led him to the right place at the right time. There was one of those niches, and he had just settled into it, peering out through the grid, when he saw the door at the opposite end of the room open and in marched a party of warriors with a prisoner in their midst. Raf's eyes went wide. It was the captive he sought; he had no doubt of that. But who--what--was that prisoner? This was no fur-covered half-animal, nor was it one of the delicate-boned, decadent, painted creatures such as those who now ringed in their captive. Though the man had been roughly handled and now reeled rather than walked, Raf thought for one wild instant that it was one of the crew from the spacer. The light hair, showing rings of curl, the tanned face which, beneath dirt and bruises, displayed a very familiar cast of features, the body hardly covered by rags of clothing--they were all so like those of his own kind that his mind at first refused to believe that this was _not_ someone he knew. Yet as the party moved toward his hiding place he knew that he was facing a total stranger. Stranger or no, Raf was sure that he saw a Terran. Had another ship made a landing on this planet? One of those earlier ships whose fate had been a mystery on their home world? Who--and when--and why? He huddled as close to the grid as he could get, alert to the slightest movement below as the prisoner faced his captors. 15 ARENA The dull pain which throbbed through Dalgard's skull with every beat of his heart was confusing, and it was hard to think clearly. But the colony scout, soon after he had fought his way back to consciousness, had learned that he was imprisoned somewhere in the globe ship. Just as he now knew that he had been brought across the sea from the continent on which Homeport was situated and that he had no hope of rescue. He had seen little of his captors, and the guards, who had hustled him from one place of imprisonment to another, had not spoken to him, nor had he tried to communicate with them. At first he had been too sick and confused, then too wary. These were clearly Those Others and the conditioning which had surrounded him from birth had instilled in him a deep distrust of the former masters of Astra.