Excerpt
As one of the Guardian ships protecting Earth, the crew had a problem to solve. Just how do you protect a race from an enemy who can take over a man's mind without seeming effort or warning?
"That hand didn't move, did it?" Edwardson asked, standing at the port, looking at the stars.
"No," Morse said. He had been staring fixedly at the Attison Detector for over an hour. Now he blinked three times rapidly, and looked again. "Not a millimeter."
"I don't think it moved either," Cassel added, from behind the gunfire panel. And that was that. The slender black hand of the indicator rested unwaveringly on zero. The ship's guns were ready, their black mouths open to the stars. A steady hum filled the room. It came from the Attison Detector, and the sound was reassuring. It reinforced the fact that the Detector was attached to all the other Detectors, forming a gigantic network around Earth.
"Why in hell don't they come?" Edwardson asked, still looking at the stars. "Why don't they hit?"
"Aah, shut up," Morse said. He had a tired, glum look. High on his right temple was an old radiation burn, a sunburst of pink scar tissue. From a distance it looked like a decoration.
"I just wish they'd come," Edwardson said. He returned from the port to his chair, bending to clear the low metal ceiling. "Don't you wish they'd come?" Edwardson had the narrow, timid face of a mouse; but a highly intelligent mouse. One that cats did well to avoid.
"Don't you?" he repeated.
The other men didn't answer. They had settled back to their dreams, staring hypnotically at the Detector face.
"They've had enough time," Edwardson said, half to himself.
Cassel yawned and licked his lips. "Anyone want to play some gin?" he asked, stroking his beard. The beard was a memento of his undergraduate days. Cassel maintained he could store almost fifteen minutes worth of oxygen in its follicles. He had never stepped into space unhelmeted to prove it.
Morse looked away, and Edwardson automatically watched the indicator. This routine had been drilled into them, branded into their subconscious. They would as soon have cut their throats as leave the indicator unguarded.
"Do you think they'll come soon?" Edwardson asked, his brown rodent's eyes on the indicator. The men didn't answer him. After two months together in space their conversational powers were exhausted. They weren't interested in Cassel's undergraduate days, or in Morse's conquests.
They were bored to death even with their own thoughts and dreams, bored with the attack they expected momentarily.
"Just one thing I'd like to know," Edwardson said, slipping with ease into an old conversational gambit. "How far can they do it?"
They had talked for weeks about the enemy's telepathic range, but they always returned to it.
As professional soldiers, they couldn't help but speculate on the enemy and his weapons. It was their shop talk.
"Well," Morse said wearily, "Our Detector network covers the system out beyond Mars' orbit."
"Where we sit," Cassel said, watching the indicators now that the others were talking.
"They might not even know we have a detection unit working," Morse said, as he had said a thousand times.
"Oh, stop," Edwardson said, his thin face twisted in scorn....