"Definitely."
"That's a lie! I don't know what your game is, mister, but you'll never make me believe that. Elwood's my best friend. We been best friends since we was kids. We been in service together. Elwood would cut off his arm for me. And I'd do the same for him."
"Yes, yes," Rath said impatiently, "in a sane frame of mind, he would. But your friend Elwood — is that his first name or last?"
"First," Magnessen said tauntingly.
"Your friend Elwood is psychotic."
"You don't know him. That guy loves me like a brother. Look, what's Elwood really done? Defaulted on some payments or something? I can help out."
"You thickheaded imbecile!" Rath shouted. "I'm trying to save your life, and the life and sanity of your friend!"
"But how do I know?" Magnessen pleaded. "You guys come busting in here —"
"You can trust me," Rath said.
Magnessen studied Rath's face and nodded sourly. "His name's Elwood Caswell. He lives just down the block at number 341."
The man who came to the door was short, with red hair and red-rimmed eyes. His right hand was thrust into his coat pocket. He seemed very calm.
"Are you Elwood Caswell?" Rath asked. "The Elwood Caswell who bought a Regenerator early this afternoon at the Home Therapy Appliances Store?"
"Yes," said Caswell. "Won't you come in?"
Inside Caswell's small living room, they saw the Regenerator, glistening black and chrome, standing near the couch. It was unplugged.
"Have you used it?" Rath asked anxiously.
"Yes."
Follansby stepped forward. "Mr. Caswell, I don't know how to explain this, but we made a terrible mistake. The Regenerator you took was a Martian model — for giving therapy to Martians."
"I know," said Caswell.
"You do?"
"Of course. It became pretty obvious after a while."
"It was a dangerous situation," Rath said. "Especially for a man with your — ah — troubles." He studied Caswell covertly. The man seemed fine, but appearances were frequently deceiving, especially with psychotics. Caswell had been homicidal; there was no reason why he should not still be.
And Rath began to wish he had not dismissed Smith and his policemen so summarily. Sometimes an armed squad was a comforting thing to have around.
Caswell walked across the room to the therapeutic machine. One hand was still in his jacket pocket; the other he laid affectionately upon the Regenerator.
"The poor thing tried its best," he said. "Of course, it couldn't cure what wasn't there." He laughed. "But it came very near succeeding!"
Rath studied Caswell's face and said, in a trained, casual tone, "Glad there was no harm, sir. The Company will, of course, reimburse you for your lost time and for your mental anguish —"
"Naturally," Caswell said.
"— and we will substitute a proper Terran Regenerator at once."
"That won't be necessary."
"It won't?"
"No." Caswell's voice was decisive. "The machine's attempt at therapy forced me into a compete self-appraisal. There was a moment of absolute insight, during which I was able to evaluate and discard my homicidal intentions toward poor Magnessen."
Rath nodded dubiously. "You feel no such urge now?"
"Not in the slightest."
Rath frowned deeply, started to say something, and stopped. He turned to Follansby and Haskins. "Get that machine out of here. I'll have a few things to say to you at the store."
The manager and the clerk lifted the Regenerator and left.
Rath took a deep breath. "Mr. Caswell, I would strongly advise that you accept a new Regenerator from the Company, gratis. Unless a cure is effected in a proper mechanotherapeutic manner, there is always the danger of a setback."
"No danger with me," Caswell said, airily but with deep conviction. "Thank you for your consideration, sir. And good night."
Rath shrugged and walked to the door.
"Wait!" Caswell called.
Rath turned. Caswell had taken his hand out of his pocket. In it was a revolver. Rath felt sweat trickle down his arms. He calculated the distance between himself and Caswell. Too far.
"Here," Caswell said, extending the revolver butt-first. "I won't need this any longer."
Rath managed to keep his face expressionless as he accepted the revolver and stuck it into a shapeless pocket.
"Good night," Caswell said. He closed the door behind Rath and bolted it.
At last he was alone.
Caswell walked into the kitchen. He opened a bottle of beer, took a deep swallow and sat down at the kitchen table. He stared fixedly at a point just above and to the left of the clock.
He had to form his plans now. There was no time to lose.
Magnessen! That inhuman monster who cut down the Caswell goricae! Magnessen! The man who, even now, was secretly planning to infect New York with the abhorrent feem desire! Oh, Magnessen, I wish you a long, long life, filled with the torture I can inflict on you. And to start with….
Caswell smiled to himself as he planned exactly how he would dwark Magnessen in a vlendish manner.