"Can you build another?"
"Sure."
Andrews smiled. "Look," he said. "You are the man who built the Better Mousetrap. But the old platitude isn't good enough. The world will not beat a path to your door unless you make yourself known. This should make you famous."
Peter frowned a bit. "Is it that good?" he asked.
"It has one feature that will outdo all other traps," said Andrews. "In any trap, there is the corpse to dispose of. In this one, there is the disposal system built in. Look, you build one for me, and we'll form a company to build them."
"If you think so."
"I think so. How long will it take?"
"To build another? About an hour once I get the parts. Luckily there's a section of the Central Scientific Company handy. They have most of the stuff."
It took several days to collect the material, after which Peter called Andrews. By the time the other man arrived, Peter was finishing off the main part of the trap. He handed the thing to Andrews, who looked at it, squinted through the circlet of wire, and then poked a pencil into it. Where it came level with the plane of the circlet, it ceased to exist in a slick plane of cleavage.