"I didn't really mean—" continued Arden, but her voice died off, trailing away into silence as Walt, motioning them to come in, also put his finger on his lips.
"Are you going to beef?" demanded Channing.
"No, you big ham," snorted Walt. "Just listen!"
Wes blinked and slammed the door shut behind them.
And then in the deep silence caused when the heavy door shut off the incident sounds from Joe's restaurant and bar, there came a faint, high-pitched hum.
Don turned to Arden. "That it?" he asked. "You've got better pitch-sense than I have."
"Sounds like it," admitted Arden.
"Cold in here," said Wes. He swung open the door and they returned to the bar for their drink. "We can establish its identity easily enough," he told them. He finished the drink, and turned from the bar. "Walt, you bring the pick-up and amplifier; Don, you carry the audio generator, and I'll bring up the rear with the rest of the gadget."
They left, and Joe threw his hands out in a gesture of complete helplessness.
"Trouble?" asked Arden cheerfully.