You hide that transmitter behind a picture or under a table or desk.

Then you run the wire out of the room and by listening in the receiver you can hear everything!" "But that is what detectives use--" "Well ?" she interrupted coolly, "what of it?
If it is good for them, is it not just as good for us ?" "Better!" he exclaimed.

"By George, you ARE the goods." It was late before Constance had a chance to do anything with the microphone.

It seemed as if Worthington were staying, perversely, later than usual.

At last, however, he left with a curt nod to her.
The moment the door was closed she stopped the desultory clicking of her typewriter with which she had been toying in the appearance of being busy.