Pehn Karn sat in the signal dome, idly waiting while his friend, adjusted the dials of the receiver. The recording tape spilled over the table in loops of aluminum. "Doesn't this job get dull?" he inquired. Nautunal turned the fifth dial a few degrees, and glanced up. "Depends on your interest. It's true this is just routine space-sweep, but noise from space is amazingly variegated. Just one more sector to scan tonight, and I'll be through. What's matter with you, Pehn? Your face looks little lo