 What is Androka trying to make?
Androka had arrived on board the Comerford the day before she sailed from Norfolk. Androka had watched over his treasures with the jealous care of a mother hen, and spent hours daily in the room in the superstructure that had been assigned as his laboratory. I have shattered them around your ship, just as I can eventually shatter them all over Central Europe! Ignoring the gibbering Androka, who was wailing his disappointment that messages had penetrated his veil of silence, they raced for the chart room. "And if the Nazi agents in America knew of the islet from which my zone of silence is projected—" Androka paused, his head tilted to one side, as if he were listening to something— On deck, there was shouting and commotion.
 A zone of silence that stops all radio signals that attempt to penetrate it.
 A zone of silence that is intended to stop Axis economic flow.  A zone of silence that is deadly to all who pass through it.  A zone of silence that will stop Americans from being able to radio Europe.  A zone of silence that stops all radio signals that attempt to penetrate it.