This excerpt resembles a script intended for a stage or film adaptation.
Film would be the most suitable medium for interpreting this excerpt.
1) The camera zooms in on Mrs. Peters' eyes which gradually meet those of Mrs. Hale.
2) Mrs. Hale's gaze shifts to identify the concealed box.
3) The sound of a knob turning, with a close-up of the knob in motion
Utilizing a camera in filmmaking would effectively highlight the focus on the eyes and the knob through panning techniques.
The Germans would then seek alternative methods to transmit their communications.
Response:
I apologize if I'm not of assistance, but we don't have the stories linked. If you update the inquiry, I might assist further.
Courage appears to be the answer, although I haven't read the book. However, I'm making an educated guess because going to the moon requires courage.