What happens
In the underwater city of Eucidia, Jerry and Joan plan to use homing pigeons to send word to Los Angeles, while Captain Bradford works with G-47 in the submarine laboratory. Jerry and Joan discuss their plan in a small room lined with soundproof Euclidean cloth, but Mrs. Gregory walks in on them unannounced, showing that the cloth does not fully protect them from being overheard. Later, at lunchtime, Joan finds that Captain Bradford and Jerry have vanished from the room behind the clock, and the solid steel door shows no sign of how they left. Joan and Mrs. Gregory are left trying to work out where the two men went. The series is Magic Island, and this episode is numbered 105.
The underwater city of Eucidia, 400 feet below the South Pacific Ocean, in the living quarters and kitchens of the colony.
Characters: Jerry, Joan, Captain Bradford, Mrs. Gregory, G-47
Listen for: Joan's surprise at finding Captain Bradford and Jerry gone, and the lack of any visible exit from the room.
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.