Down the street, a shadow moved, and he held his breath. In a shaft of moonlight, black metal glinted darkly. With a muffled cry he slipped from the doorway and flew down the street, trying to still the noise he made. Behind him, no sounds came to indicate pursuit. He darted across the street, went into an alley, crossed another street. Finally, he came to the park. He stopped. Fearfully, he looked behind him. No one. He walked forward. The park was a mass of tree and shadow, indistinguishable. Softly, he called, "Julie." No answer. "Julie." A gentle movement, and someone disengaged from the shadows, glided to him. Someone soft and warm--and feminine. He could smell the elusive taint of her perfume even before she entered his arms. "You're late," she said. "I was detained." She looked sharply at him. "Trouble?" "I--I don't know. A robot surprised me. He took my picture." "A robot!" she said in alarm, drawing away from him. "They probably already know who you are. Were you followed?" "Part of the way, but I think I dropped him." "You _think_?" Her tone was worried. "Do you realize you might have led him here. We can't go to the meeting place now. They'll be searching for you." "And they'll find me if I stay here," he said mournfully. "Now, you've got to take me, Julie. I've got to go someplace." * * * * * "Where?" she said. "Where can anyone go--except up there?" With a motion of her head she indicated the moon, hanging like a grim reminder of the Prison Colony it contained. She shook her head. "I should've suspected it when that WBI man showed up. Somehow they've gotten wise to you. Do you realize you've jeopardized our entire position?" "I didn't mean to--" "It matters very little whether or not you meant to," Julie said sharply; "the fact is, you've done it." Her tone softened, "I'm sorry, Arthur, it's just that--" "I understand how you feel," Arthur said gently, taking her in his arms. "Believe me, Julie, everything will turn out all right." "I hope so," Julie said. "Well, we have to do something; we can't stay here." "Take me to the hiding place, Julie," he begged; "we can work out something from there." She looked at him briefly, considering the alternatives, her mind torn between affection for him and fear for the underground's safety. He knew she was recalling the many plans they had made for when all this was over, the legal matter of Helen, their home in a world where the air was free. "If I stay here they will get me," he reasoned. "At least we have a chance the other way--if we hurry!" In sudden determination, she said, "Come on, then."