Nina looked at me very troubled and I put my arm around her shoulders, and said she didn't have to answer if she didn't want to. But then she took a little breath and said in a very low voice that as far back as she could remember, even when she was a tiny girl, she always had a good feeling when she was going up and a bad feeling when she was going down. It was a strange way to be, she knew, and she had never told anyone before. But that was why she did not like Hope Passage, which went down so fast. The passage she had liked best was the one near the old statue. The way it went up gave her a good feeling. Doctor Dorn asked didn't she know the passage by the statue was the oldest one we had found, and therefore it should have the smallest chance of going to a live city. Nina said she knew, and her mind understood everything Doctor Dorn said. But the things her mind knew and understood were not able to change the way she felt. She said she was sorry she had made us all lose so much time. She would not talk about it any more. Doctor Dorn asked Nina would she please answer just one more question. Did she have this good feeling while we were walking up the little climb near the end of Black Passage. Nina nodded her head yes, and Doctor Dorn said it was very interesting. Then in a different voice, he said that Hope Passage was our best chance of finding life, and after this sleep we would continue our walk there. * * * * * Twentieth Awake, 21 Juli 2207 A few hours ago we said goodbye to Ralf and Mari and Bruno, and watched them start down Hope Passage. I think they may find life again soon. Even now, I do not understand clearly why we are not with them; why we are climbing in this old rough passage which rises so steeply we must stop every little while to rest. Many thoughts must have come to Doctor Dorn during our last sleep, because when we awoke he was different from any way he had been before. For a little while, he just walked up and back rubbing his chin as if he were thinking very hard. Then all of a sudden he stopped and came over to Nina. He asked Nina whether if we were not here, if she had to decide only for herself, knowing all he had told her, would she still take the old passage? Nina said yes, she would. Doctor Dorn sat down. He said he was going to say strong words. He was going to tell us some of the things he had read in the Forbidden Books. For thousands of years Man had first lived on Earth Surface, the books said. But then great wars had come and Man had studied hard and learned ways to kill each other millions at a time. But some of the men who did not want to die had dug deep into the earth to live. Everyone in the earth, the books said, came from these first men from Earth Surface.