What happens
Lois Lane and Horatio Horn, reporters investigating a supposed sea monster off the Canadian coast at St. Selmo, suspect the local fisherman Pike Barnaby knows more than he admits. Superman has taken a water sample to Metropolis for analysis and is expected back, while the two press on with their own inquiries. Their suspicions grow after they inspect Barnaby's boat and notice odd markings on its hull. The episode is part seven of The Adventures of Superman, a radio series first broadcast on May 6, 1947.
St. Selmo, a fishing village on the Canadian North Atlantic coast, and Metropolis
Characters: Lois Lane, Horatio Horn, Superman, Clark Kent, Ben Jacobs, Pike Barnaby
Listen for: Lois and Horatio's suspicions about Barnaby, and the radio equipment they find in his shack
Written from the episode itself; it never gives away the ending. Every recording is remastered for the stream: cleaned of rumble, hiss and mains hum (and the old TV whine where we found it), then levelled in two passes to steady broadcast loudness, so one show is never quieter than the next.