"Dead end," Rath said heavily. He turned and shouted, "Smith! Did you find any prints?" Lieutenant Smith, his coat off and sleeves rolled up, bounded over. "Nothing usable, sir." Rath's thin lips tightened. It had been close to seven hours since the customer had taken the Martian machine. There was no telling what harm had been done by now. The customer would be justified in bringing suit against the Company. Not that the money mattered much; it was the bad publicity that was to be avoided at all costs. "Beg pardon, sir," Haskins said. Rath ignored him. What next? Rapid Transit was not going to cooperate. Would the Armed Services make their records available for scansion by somatotype and pigmentation? "Sir," Haskins said again. "What is it?" "I just remembered the customer's friend's name. It was Magnessen." "Are you sure of that?" "Absolutely," Haskins said, with the first confidence he had shown in hours. "I've taken the liberty of looking him up in the telephone book, sir. There's only one Manhattan listing under that name." Rath glowered at him from under shaggy eyebrows. "Haskins, I hope you are not wrong about this. I sincerely hope that." "I do too, sir," Haskins admitted, feeling his knees begin to shake. "Because if you are," Rath said, "I will ... Never mind. Let's go!" -- -- -- -- -- By police escort, they arrived at the address in fifteen minutes. It was an ancient brownstone and Magnessen's name was on a second-floor door. They knocked. The door opened and a stocky, crop-headed, shirt-sleeved man in his thirties stood before them. He turned slightly pale at the sight of so many uniforms, but held his ground. "What is this?" he demanded. "You Magnessen?" Lieutenant Smith barked. "Yeah. What's the beef? If it's about my hi-fi playing too loud, I can tell you that old hag downstairs--" "May we come in?" Rath asked. "It's important." Magnessen seemed about to refuse, so Rath pushed past him, followed by Smith, Follansby, Haskins, and a small army of policemen. Magnessen turned to face them, bewildered, defiant and more than a little awed. "Mr. Magnessen," Rath said, in the pleasantest voice he could muster, "I hope you'll forgive the intrusion. Let me assure you, it is in the Public Interest, as well as your own. Do you know a short, angry-looking, red-haired, red-eyed man?" "Yes," Magnessen said slowly and warily. Haskins let out a sigh of relief. "Would you tell us his name and address?" asked Rath. "I suppose you mean--hold it! What's he done?" "Nothing." "Then what you want him for?" "There's no time for explanations," Rath said. "Believe me, it's in his own best interest, too. What is his name?" Magnessen studied Rath's ugly, honest face, trying to make up his mind. Lieutenant Smith said, "Come on, talk, Magnessen, if you know what's good for you. We want the name and we want it quick."