It was very sudden, and with no warning. A great centipede-like creature simply appeared out of nothing. It had a face rather like a humanoid being, despite the massive insectoid body stretching out behind it. In its top few arms was a girl who appeared distinctly human, perhaps fifteen years old. It set the girl down on the boy's bed and looked at him with a smug expression. "You'll take good care of her, won't you?" it asked, then laughed horribly. Despite that, its voice was very quiet, like it was trying not to attract attention. It vanished, as suddenly and as easily as it had come, leaving Spock alone with the girl it had brought. She had been unconscious, but she was rapidly coming to.