Unterzuyder's cane whipped around nervously. "I know nothing about a map!" Bigger's jowls quivered with mirth. "Seven weeks ago," he pointed out, "your father died. He told you the map was hidden in an old book called _Tertium Organum_, A Key To The Enigmas Of The World. By somebody named Ouspensky." Unterzuyder's eyes moved desperately to the street, down which a single gyromobile moved. "I have an appointment," he said stiffly. "Now if you will permit me to be on my way before they turn the rain-makers on--" "It won't rain for ten minutes. Better let me finish--if you don't want your precious settlers to know who you really are! "As soon as your aunt heard about your father's death, she put the old Unterzuyder house up for auction to pay your father's creditors. The furniture went mostly to junk-dealers, the rest to museums. All the books, some ten thousand of them, were bought by a big New York used-book company, Frangy & Sons, Ltd. "Half of these books, the ones whose titles all began with the letters of the alphabet up through 'M', were kept in their New York branch. The remainder were sent to open a book store in Marsport. By the time you got to Marsport from Earth, the book was reported already sold--to a person unknown. That's all true, _isn't_ it? "After having failed to find the map, Mr. Unterzuyder, you then sent the story to a newspaper--anonymously." "I did?" Unterzuyder looked arrogantly at Bailes. "Yes." Bigger's eyes narrowed. "Why?" Unterzuyder surged angrily away from the wall. "I am not interested in your questions. I have my chosen mission in life. It is not the making of money!" He brandished his cane. "I warn you, Mr. Bailes," he cried, "I am a nervous man. If I am not permitted to leave--" Bigger spread his hands, astonished. "Don't think for a minute I'm keeping you. The only suggestion I wanted to make was that you and I could work together." Unterzuyder took off his glasses. There were red marks around his eyes where the glasses had taken hold. He had inherited the famous thin nose and receding chin of the Unterzuyders. His pale thin lips worked nervously. "I work alone, Mr. Bailes," he said haughtily. "And I work best when such as you try to set your pitiful little traps! Threaten me as you will, nothing can keep me from my purpose. And now good-day." Bigger's voice was filled with disgust. "Your purpose being, of course, to find asteroid X and free your ancestors so they can go to work on the Solar System again!" Unterzuyder glared, primly returned his glasses to his nose, and stalked off. "Scoundrel!" he muttered, putting his hand over his heart. He gasped. It was racing. And he was sweating. Trembling. His mother, the Unterzuyder matriarch, had been quite right. He should take care of his health. By the time he caught a one-wheeled gyromobile that came bowling down the glass street, he was feeling much better.