That he had been connected with the mysterious crash in Siberia ten years before was almost a certainty. How he had managed to get from there to Leningrad without being seen once was more of a mystery, but certainly not impossible in the light of what had been done since. Eight months later, a non-vision phone call had been received by the Regent's Board of the Khrushchev Memorial Psychiatric Hospital in Leningrad. An odd, breathy voice offered (in very bad Russian!) a meeting. The Nipe had managed to explain, in spite of the language handicap, that he did not want to be mistaken for a wild animal, as had happened with the forest ranger. The psychiatrists were divided in their opinions. Some thought that the call had been from a deranged person. When the Nipe actually showed up at the appointed place, those minds changed rapidly. The Nipe's ability to use any human language was limited. He picked up vocabulary and grammatical rules very rapidly, but he seemed completely unable to use a language beyond discussion of concrete actions and objects. His mind was simply too alien to enable him to do more than touch the edges of human communication. In the discussion of mathematics, in particular, the Nipe seemed to be completely at a loss. He apparently thought of mathematics as a _spoken_ language instead of a _written_ one, and could not progress beyond simple diagrams. He wasn't captured in any real sense of the word. He refused to allow any physical tests on his body, and, short of threatening him at gun-point, there didn't seem to be any practicable way to force him to accede to the human's wishes. And they couldn't do that. The Nipe had to be treated as an emissary from his home world, wherever that was. He'd killed a man, yes. But that had to be allowed as justifiable homicide in self-defense, since the forester had drawn a gun and was ready to fire. Nobody could blame the late Wang Kulichenko for that, but nobody could blame the Nipe, either. For six weeks, the humans and the Nipe had tried to arrive at a meeting of minds, and just when it would seem within grasp, it would fade away into mist. It was nearly a month before the Russian psychologists and psychiatrists realized that the reason the Nipe had come to them was because he had thought that they were the ruling body of that territory! The UN observers stayed out of it at first. Before there was any kind of talk on a Government level, there must be some kind of understanding on a personal level. And that, of course, was never achieved. Just what had set off the Nipe's anger hasn't been established yet, as far as Stanton knew. At a meeting one day, he had simply become more and more incomprehensible, and then, without any warning, he had leaped out, killed three of the men with his bare hands, and gone out the window. And that had been the end of any diplomatic relations between humanity and the Nipe.