“I’ll try.” He did not smile.
In no time at all the radio was hooked up and “put-putting” louder than ever.
“That’s a sub giving orders to another sub,” she said quietly.
“Ah!” he breathed.
“Now watch. I turn this dial. That changes the direction of our listening. And—” For a space of seconds there came no sound and then again, “put-put-put....”
“That’s a different sub, answering the first.” There was quiet confidence in her voice. “It has a different sound.”
“So it does,” he agreed.
In the next ten minutes, she located six different radios operating out there, somewhere in the night.
“There are two others” she said as she straightened up. “Eight in all.”
“Eight,” he repeated after her.