"We've got fuel for six weeks' drive," he said ironically. "That means we can go to any place within twenty-five light-years. We've tried every solar system in that range. They're all warned against us. They all had their projectors in operation. We couldn't land. And we'd have starved unless we got to some new material for the synthesizer. This was the only place we could land on. So we have to stand it, if we stand anything." Dona was silent for a little while. "We've got each other, Kim," she said slowly. "For a limited time," he said. "If we use our fuel only for heat and to run the synthesizer for food, it will probably last several years. But ultimately it will run out and we'll die." "Are you sorry you threw away everything for me, Kim?" asked Dona. "I'm not sorry I'm with you. I'd rather be with you for a little while and then die. Certainly death is better than what I faced." Kim made a furious gesture. "It's recognized, everywhere, that the population of a planet has the right to make all the laws of that planet. We are the population here. We could be married by our own act. But suppose we had children? When our fuel gives out they'd die with us. I think we'd go mad anticipating that. We can't even have each other. We're imprisoned here as they used to imprison criminals. For life. We can have no hope. There is nothing we can work at. We can't even try to do anything." He clenched his hands inside his space-gloves. Dona looked at him. "Are you going to give up, Kim?" "Give up what?" Then he said bitterly, "No, Dona. I'm going to find some excuse for hoping. Some lie I can tell myself. But I'll know I'm simply trying to deceive myself." There was a long silence. Hopelessness. Futility. "I've been thinking, Kim," Dona said softly, at last. "There are three hundred million inhabited planets. There are trillions and quintillions of people in the galaxy. If they knew about us, some of them at least would want to help us. There are some, probably, who'd hope we could help them. If we were to think of a new approach to the problem we face, and reach the people who would want to help us, it might mean eventual rescue." "Signals travel at the speed of light," Kim said. "We'd